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The dissemination of emerging electronic devices increases considerably alongside with the Internet of Things (IoT) paradigm. Some key elements considered in these devices (e.g. rare-earth) are becoming critical materials and are associated with serious environmental concerns. Therefore, there is a major requirement for designing differently our electronic technologies at the early stages of the research process. Many reports present the promising properties of paper-based electronics as meant to address this challenge. Through technical and life cycle assessments, this article discusses the main design levers in terms of material and fabrication process choices for the eco-design of paper-electronics water quality sensors. Our results suggest conscientious choices of conductive nanomaterials and additive fabrication techniques.

Digitalisation provides many opportunities for process improvements by using smart devices such as Augmented-reality (AR) displays in production. Nevertheless, in-depth studies about the effects of these applications on key performance process indicators are sparse. The goal of this study is to evaluate AR-based remote maintenance processes supported by cutting edge optical head-mounted display technology. A total of 12 test runs conducted with real-world maintenance engineers in a real-world industry setting were analysed based on video recordings and semi-structured interviews. The study identified both case-specific and general issues, and the inherent potential of the technology.

Product Life-Cycle Management (PLM) defines the integration of different kinds of activities, from a technical, organizational and managerial point of view. These activities are performed by engineering staff throughout the entire life cycle of industrial products. To improve PLM, the information which is gained within a specific PL phase should be made available and used along the entire life cycle. This position paper describes how the No-fault-found (NFF) problem can benefit from transferring information from BOL into MOL. The application field of avionics is considered, in particular the generated information in the test process of BOL and the relevance of NFF. For this purpose, the article presents an approach by ARINC 672 for reducing NFF phenomenon. On basis of this approach the authors propose an extension to insert the information of test process’ results proactive into the ARINC 672 approach. The extension has a visionary nature and does not consider technical background of the BOL and MOL of aircrafts. Finally the position paper motivates the next necessary steps to bring the proposed extension to its applicability.

One of the major trends in the 21st century is the trend towards digital transformation within Industry 4.0. In order to adapt to high volatile market conditions, especially in the context of COVID-19, companies do not only have to transfer their knowledge into digital systems. Furthermore, they have to be able to tailor their business processes rapidly to changing customer's needs. The implementation of efficient and transparent processes is thereby known as the process of digital transformation and requires its underlying software-architecture to be highly flexible and scalable. Especially a web-based platform represents a highly user-centered application for multi-user purposes and can quickly adapt to its customer needs. While e-commerce and video-streaming platforms, like eBay or Netflix, often already provide a highly flexible, microservice-based architecture, common tools and platforms within the engineering-domain are usually still based on rather monolithic or service-oriented architectures (SOA). Therefore, an adaption to changing market conditions and the integration of proprietary tools is often technically demanding and economically not feasible, especially for small and medium-sized enterprises (SME). In this context, the so-called Process-Driven-Approach (PDA) offers a sustainable and tool-neutral blue-print for a system's architecture strictly following the separations-of-concerns principle and allowing a user-centered layout. The PDA enables the integration of business processes and tools within an orchestrating framework, provided by a process engine. While the PDA within the engineering domain has been presented in a preceding paper, this paper supposes a reference architecture and agile development method for engineering-platforms via the PDA based on the BPMN-standard and process engines. These concepts are validated by a prototypical implementation of a platform-demonstrator for tool-supported planning of robot-based automation solutions. © 2021 The Authors. Published by Elsevier B.V.

Modern version control strategies are highly capable at supporting the management of virtual artefacts. The process of developing a new product, however, is not limited to virtual artefacts. Today’s fast-paced industrial processes require a diverse range of both virtual and physical artefacts to explore, refine, and evaluate designs. These virtual and physical artefacts are interrelated, and the information they embody, the knowledge they generate, and the transfer of learning between are fundamental to the design history. Consequently, there is a requirement to capture and curate both virtual and physical artefacts, iterations thereof, and the interrelationships between. The Digital Twin paradigm couples physical and virtual artefacts throughout the product life-cycle, providing a means to capture an evolving design irrespective of the medium in which the designer is working. Recent literature has, however, raised questions about the concept of a Digital Twin early in the product life-cycle when the design in question is conceptual (a cognitive model) rather than physical or virtual. This paper reflects on the challenges of implementing Digital Twin-based version control in the early-stage of new product development, moving towards integrated version control of virtual, physical and cognitive models/artefacts. Firstly, by presenting an argument that current design practices capture cognitive models through stakeholder creation and evaluation of physical and virtual boundary objects, the ambiguity surrounding conceptual design and the Digital Twin is addressed. Secondly, the principles of the Digital Twin and current version control strategies are reviewed to determine how one can maintain digital/physical synchronicity as a design evolves. Finally, this paper reflects on the implementation of such an approach and the proposed future work.

Widespread use of carbon fibre across various industry sectors remains limited due to the high costs of the raw materials and energy demands during production. Furthermore, the environmental impacts associated with its manufacturing process, may significantly reduce the potential benefits of weight reduction or material savings in the end products. Despite the excellent mechanical and chemical properties, which would make the material a viable substitute in a wide range of applications, further production and cost improvements are necessary to raise interest and demand. The scarcity of available carbon fibre production related data and the confidentiality of the few commercial carbon fibre suppliers hinders further research efforts towards these improvements. This paper proposes a dynamic, modular Life Cycle Assessment (LCA) and Life Cycle Costing (LCC) concept tailored for carbon fibre production and is based on a pilot production set-up (120t/year). The model is intended to accelerate the assessment of carbon fibre production and serves as a tool for the exploration of various scenarios, including alternative precursor material, different carbon fibre grades or varying production parameters. In this paper the model is specified, embedded in the environment it is intended to be used and applied to a production setup based on data collected using the pilot scale carbonisation line at Carbon Nexus, a unique, open-access carbon fibre/composite research facility in Victoria, Australia.

Although the increasing use of automation in industry, manual assembly stations are still common and, in some situations, even inevitable. Current practice in manual assembly lines is to balance them using the takt-time of each workstation and harmonize it. However, this approach mostly does not include ergonomic aspects and thus it may lead to workforce musculoskeletal disorders, extended leaves, and demotivation. This paper presents a holistic human-centric optimization method for line balancing using a novel indicator the ErgoTakt. ErgoTakt improves the legacy takt-time and helps to find an optimum between the ergonomic evaluation of an assembly station and its balance in time. The authors used a custom version of the ErgoSentinel Software and a Microsoft Kinect depth camera to perform online and real-time ergonomic assessment. An optimization algorithm is developed to find the best-fitting solution by minimizing a function of the ergonomic RULA-value and the cycle time of each assembly workstation with respect to the worker's ability. The paper presents the concept, the system-setup and preliminary evaluation of an assembly scenario. The results demonstrate that the new approach is feasible and able to optimize an entire manual assembly process chain in terms of both, economic aspects of a well-balanced production line as well as the ergonomic issue of long term human healthy work.

During the last decade, the European manufacturing industry has experienced a growing trend towards customization and personalization. As a response to increasing global competition and changing customer needs, there has been increasing attention to achieving shorter time-to-market, and manufacturing products for smaller market segments. Throughout this paper, the term ‘high variety products’ will be used to describe products that contain at least one product part with a customized geometry. There are two primary aims of this study. First, to illustrate the current challenges that Small- and Medium-sized manufacturers face with high variety products. Second, to explore how these challenges can be addressed systematically. Assembly tasks within existing manufacturing systems for high variety products typically involve a combination of manual labor and automatization. As geometrical variation is considered complex for automation, cost considerations can hinder increasing the level of automation in assembling high variety products. However, this objection might not be legitimate. Hence, this paper proposes a new design method to improve decision making for cost-effectively realizing high variety products. Two core findings of this study include: First, the achievable product variability of a production process depends on the process step least robust to geometrical variation. Second, the adjustability of product design is regarded as an enabler for customization and increased automatization of the production process.

Changes during the product development process pose a high risk of unexpected high implementation effort. To reduce this risk, the impact of engineering changes have to be estimated in advance before their implementation. However, in large systems, the numerous interdependencies often create challenges to the approximation of the implementation effort by inducing complex interdependencies which are often not easy to identify from the start. This paper therefore proposes a method to quickly determine change efforts of complex systems. To be able to estimate change efforts, the dependencies between system components have to be mapped together with their corresponding modeling effort (e.g. modeling time). The SysML (System Modeling Language) system model is a powerful tool to support this process as it offers the possibility of a very individual and versatile data storage. Furthermore, specific data (e.g. calculation time) can quickly be identified with algorithm such as “metachain navigation”. We propose in this paper to use a SysML system model for an advanced documentation of the product and construction structure to be carried out in parallel to the modeling process of a system simulation model (in this case finite-element- and multi-body-simulation). Assemblies and associated components are represented by the product structure, while the construction structure represents the force flow between two components. Furthermore, in SysML individual data, e.g. modeling time and calculation time, is stored in an instance that is connected to a specific component or assembly. As a demonstration example, the approach is shown on a structural dynamic analysis of a powertrain with seven subassemblies and over 100 components. Following the proposed method, the effort of a specific component change of the powertrain can be estimated quickly due to the stored data in the system model.

In this paper a framework is introduced to elicit requirements of Artificial Intelligence (AI) towards the System Model in order to support engineers in Virtual Product Development (VPD). The framework supports to shape the evolution necessary in system modelling to provide the right data in the right quality for AI. Depending on the business benefit that a company wants to realize, AI can provide capabilities and solutions to be implemented in VPD. Therefore, differing requirements need to be fulfilled for each business benefit that a company pursues. This framework is applied in a case study in the Medical Device Industry, where a marked leader wants to improve their capability to create innovations by automatically increasing their market knowledge. Therefore, a Natural Language Processing system is applied to automatically enhance the company knowledge base with an external source. This is realized in an initial prototype by analyzing Tender Documents and automatically connecting the new knowledge generated to the company internal knowledge in the system model. This paper is part of research activities within the Research and Development department of a global Medical Device Company. The Objective of these research activities is to explore the use of Artificial Intelligence to analyze and support the Virtual Development Process.

The efficient execution of process planning activities requires the knowledge from several distinct domains. However, in this context, a common issue is the existence of collective knowledge in the one domain with a lack of networked expertise with other domains. Motivated by this, the paper proposes an approach to support process planning by comparing the generated part design with older, validated products. The utilization of this earlier CAD part models has the potential to reduce development costs, shorten the production start-up time and improve the product quality. The new concept provides the manufacturing personnel with a method for comparing the newly designed part with a pool of validated models to identify the most similar one. Each previous CAD part model is linked with the necessary manufacturing information, so that the initial values for the manufacturing process are available without a time consuming testing phase. The method is divided in three main steps: the global similarity comparison, the segmentation of the part and the local similarity comparison. In the first step, the geometry is projected onto a sphere and then transformed to a matrix. Afterwards these matrices are compared and clustered into corresponding groups. In the following step, a Machine Learning algorithm segments the objects into specific, manufacturing relevant groups. In every cluster, the segmented geometries are again compared for similarity. The combination of the first and the second ranking results in a global similarity hierarchy for the newly designed part. In this paper, the entire procedure is shown with the example of sheet-bulk metal formed parts. This new manufacturing process particularly benefits from this method, as the amount of data is still limited and therefore little expert knowledge exists.

Product variety is a growing trend of offering highly configurable products at the cost of inducing complexity in manufacturing. Joining is a key manufacturing process and historically was a paper-based process with incomplete variety documentation. Nowadays, digital joining element design is a substitution of paper for 3D space. Nonetheless, it remains an ambiguous manual task with limited automation, resulting in time-consuming iterative error-prone development trajectories and costly reworks. This contribution addresses the state of the art in joining element design in both research and industry practice. It reviews product variety and its impact on joining processes. The paper identifies a need for integrating product variety into joining element design and it proposes a solution pathway using artificial intelligence methods.

With digital transformation changing industrial labor drastically, the aim of this paper is to conceptualize a new methodical framework for the production system of the future. For this, mega trends for the industrial work of the future are considered. Existing concepts and tools for production systems are analyzed with regard to the identified challenges of digitalization and future work. The result of this paper is an academically relevant and practically applicable approach for the development of a framework for the digital transformation of the production system. The approach consists of a development process and eleven design principles. The theoretical developments are accompanied by practical applications within the environment of the “Future Work Lab”, an innovation lab for technical, social and organizational changes in industrial labor.

With the introduction of Health 4.0 we face a new era in healthcare and notice the disruption of delivery, adoption and use through newly introduced technology. Wearables have become increasingly important in the medical sector and their remote application and widespread use are significant to the development of technology in healthcare today and the future. The implementation of wearables requires regulations and clinical approval when intended to use for health tracking and monitoring. Within this process designers play a crucial role. Design methodologies are the guideline to accomplish a successful path towards the creation of a new product. In this paper the authors explore and draw from established design methodologies to support the creation of a framework for design of wearables in a health 4.0 context. Identifying the positions of design practices and analyzing the correlations in the context of Health 4.0 is therefore presented within this paper.

Part design is the most important enabler to automate assembly processes. Design work done in companies’ development departments determines most of the product and production costs through material selection and number of components. Part design mostly focuses on functionality but there is still high potential in production processes. To optimize part design for manufacturing and assembly processes first approaches were made between 1960 and 1980. Nowadays, these systematic procedures for optimized component development with respect to production processes are known as ‘Design for Manufacturing and Assembly’ and ‘Design for Automatic Assembly’. Existing part design rules mainly focus on rigid parts. Limp components are avoided in automatic assembly processes, due to limp material characteristics such as strong deformations due to external force or momentum and shape change during manipulation. However, many products, for example automotive wire harnesses, consist of a considerable amount of limp components. A better design for limp components and their joining-partners might be a solution to simplify subsequent automated production processes. The first step therefore is limp component classification. This paper introduces a new scheme of limp component classification oriented towards an abstraction of automated assembly processes. Different limp material characteristics influence several stages of this process. Therefore, relevant limp material characteristics are assigned to the affecting stages. With this classification, the specific challenges in the automated assembly process become clear. This serves as a basis to define challenges for future automated assembly. In addition, the definition of general design rules for limp components concerning automatic assembly becomes feasible. This paper highlights challenges in limp part assembly automation, abstracts automated assembly processes, reviews and discusses first approaches in limp part classification, and introduces a new scheme for limp component classification. The paper concludes with necessary future research based on the proposed limp component classification.

The virtual reality technology (VR) has undergone a rapid development in recent years. The VR software and hardware have become powerful and affordable. Therefore, the VR counts to the key technologies for enabling the digital transformation. However, this significant technology has not achieved the expected breakthrough in the industrial engineering area yet. The potential of the VR to digitize and to improve the engineering process of industrial companies especially for SMEs is still undiscovered. This has led to a poor implementation and use of the VR applications with an engineering scope compared with other business sectors e.g. gaming, entertainments. This paper presents and discusses two case studies achieved within cooperation project between the University of Applied Sciences Karlsruhe and German manufacturers for fire trucks and systems for firefighting and disaster protection. The aim of the case studies is the implementation of VR applications and their evaluation in terms of using in the business processes of the involved industrial partner. Based on the experiences gathered during this cooperation project a CAD Data transformation process for an industrial VR application as best-practice approach will be outlined and discussed in this paper. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/3.0/ ). Peer-review under responsibility of the scientific committee of the 27th CIRP Life Cycle Engineering (LCE) Conference.

Product development (PD) faces uncertainties caused by rapidly developing technologies, shifting market demands and the changes occasioned by these developments, including new requirements for products being developed and increased difficulty for companies to reliably execute state-of-the-art processes. In this paper, we argue that classic PD risk management methods and tools are based on the ‘predict and plan’ paradigm, which assumes that organisation members involved in PD have sufficient time and resources to identify, analyse and mitigating technology risks and organisational risks. However, the reality of product development is that time and resources are rarely sufficient, and uncertainty is currently being introduced to the development process at an accelerated rate by trends such as pervasive digitalisation. This paper therefore investigates a resilience-inspired approach to PD risk management that abandons the predict and plan paradigm in favour of a ‘monitor and adapt’ approach. We argue that, in industrial practice, predict and plan approach is the de facto risk management baseline, and suggest deliberately tailoring risk management and PD processes to incorporate resilience-based practices. To that end, we provide suggestions for process frameworks and tools organisations may adopt and discuss how resilience and risk management are complementary approaches to traditional PD. Our arguments are supported by a case study of an engineering organisation and additional interviews conducted with members of similar organisations for purposes of validation. © 2019 The Author(s). Published by Elsevier B.V.

Industry 4.0 and the Smart Manufacturing paradigm are rapidly transforming the way business is conducted in the manufacturing industry. The underlying core technologies of the emerging digital transformation include the Internet of Things (IoT) and data analytics. While the shop floor is the main focus of these paradigms in the narrow sense, it is becoming more prevalent for other companies or business units along the digital supply network to investigate the potential to improve their processes by leveraging these technologies as well. One area that is traditionally reliant on human operators and optimization is the trucking industry. In recent years, this industry has started to explore how the above-mentioned technologies can be utilized to improve their operations, and new policies are further amplifying this process, e.g., by mandating Electronic Logging Device (ELD) to be used by commercial drivers in the USA. This development forces companies to collect digital, high-resolution data – and the question emerges how to utilize this data in the most value-adding way. In this paper, we analyze the current state of the art of digital transformation in the trucking industry by conducting a bibliometric study of recently published papers to identify the main research areas and themes in this field, the leading authors, countries, and journals in this domain. This work will provide the basis for further in-depth studies on optimization techniques and available case studies to provide theoretical input for practitioners and scholars.

Current developments in production systems and production control will lead to a significant change of their connection to product development. A representative example of these developments is the concept of self-organizing production systems. This paper focuses on appropriate changes of the development process evoked through recent developments in production. The paper summarizes process changes and opportunities for the development process, which include the vision of self-organizing production systems, its challenges and opportunities. Consequences are estimated for established development methodologies like the V-model and aspects of Systems Engineering.

There has been a great deal of research interest in applying industrial symbiosis in the food manufacturing industry as part of the industry-wide shift towards sustainable manufacturing. However, an evaluation of its participation rates first requires an in-depth understanding of the factors that influence the manufacturers’ waste management behaviours and decision-making process. This paper attempts to propose a comprehensive waste management behavioural framework for the food manufacturing industry by building on the works of previous waste management behavioural studies, most notably Young et al.’s work on employee pro-environmental behaviour. The proposed framework was validated through an exploratory survey conducted on a representative group of waste managers from Singapore’s food manufacturing industry. Using exploratory factor analysis, we identified Intention, Perceived Moral Obligation, Company Structure, and Situational Barriers to be the most significant factors influencing the waste manager’s waste management decisions. Based on these results, several policy recommendations were proposed which focus on the education of industrial symbiosis to the leaders of the organisation. The findings from this paper will provide valuable insights into the manufacturer’s waste management decision-making process, as well as a more human-centric framework for the conduct of future industrial symbiosis studies in the food manufacturing industry.

Industry is continuously searching for solutions to increase flexibility and quality in parallel with cost reductions. This paper presents a case study of using set-based design method to develop a gripping system for an innovative three-dimensional bending and forming technology of extruded aluminium profiles. Traditionally, profiles are formed by mandrel-based stretch-bending to improve cross-sectional stability and spring-back, sometimes combined with subsequent calibration e.g. by hydroforming. However, in the highly competitive automotive industry, where light-weighting is high on the agenda, design and process flexibility, tooling cost and dimensional accuracy are important factors to increase value at a reasonable cost. In this paper, a set-based concurrent engineering approach is used to identify, evaluate and prioritize gripping methods to enable three-dimensional bending meeting automotive requirements for dimensional accuracy. The results demonstrate a multitude of options, providing trade-offs between flexibility and function. Further work will be to build a physical demonstrator to validate output from the set-based method used to systematically narrow down the solution space.

This paper presents a methodology and the associated tool for enhancing decision making in shop floor layout using collaborative virtual reality, associated to real-time performance indicators in Industry 4.0. It first describes the collaborative architecture of the application. Subsequently, application features like: visualization at scale one (machines, industrial environment’s top view, product flow path), 3D model interaction (setting layout), physical process flow evaluation (spaghetti diagrams, Key Performance Indicators-KPI), testing multiple configurations (via save and load). Finally, paper illustrates possible usages and benefits of how VR tool helps improve ergonomics and safety; helps reduce deliberation time and bottlenecks through machine spatial footprint, visualization, scale one experience and referring KPIs.

Since the first industrial revolution manufacturing systems have been considered well-defined socio-technological entities that extract resources from the natural environment in order to create goods for the satisfaction of human needs. Productivity gains stimulated by technological innovations such as electricity and computers are inherent to the system. Whilst digitization depicts the latest paradigm, other technology leaps have virtually been neglected in traditional manufacturing science: biomimetics and biotechnology. In this context, we present the concept of a biointelligent industry outlining the vision of a naturally consistent subsistence strategy. Future industrial activities are expected to no longer extract resources from the environment but apply nature as a manufacturing utility. From a scientific point of view many issues, however, remain unanswered. In this paper we thus present fundamentals of a biological transformation from a manufacturing standpoint based on recent research. Thereby we define this novel field of research, discuss its impact on traditional patterns of thought, provide a selection of technology, process and system examples, and present 10 fields action in terms of future research, industrial investment, policy initiatives, and societal involvement. The paper sets the basis for extensive further research and discussion within the manufacturing community.

Due to the increasing demand for flexible and low-cost production, manufacturing solutions involving human robot interaction have become much sought-after. Robotic manufacturers meet the demand with a rising number of low cost robots specifically designed around safety and usability. However, the programming is still based on a tool centric teach-in. This paper discusses an affordance based approach for process programming in industrial manufacturing. Using low level feature detection and a consecutive evaluation, a fast programming method for industrial applications is presented. The paper presents the concept and a prototypic implementation for a welding process. Using the affordance detection, the system is able to identify relevant seams based on an image of the work space. The identified seams are then presented to the user for review with the means of augmented reality. Lastly, the system derives a welding program based on the detected seams. First experiments show promising results concerning programming speed and path accuracy for different work piece shapes and task definitions. Finally, based on the experience gained with the prototype, the outlook discusses the possibilities and further fields for future work.

The University of British Columbia has an interest in incorporating life cycle environmental impacts and financial information into project planning, as well as research and teaching. As part of a tall wood building research program with the UBC Sustainability Initiative and Dept. of Civil Engineering, a comprehensive life cycle assessment (LCA) and life cycle costing (LCC) study was done of two student high-rise residential buildings, based on the result of whole building LCA done by Athena Sustainable Materials Institute and whole building LCC done by Sensible Building Science. These buildings are of similar design but Brock Commons Tallwood House has a hybrid mass-timber structure and Ponderosa Commons Cedar House has a more traditional concrete structure. This paper will include a brief overview of the research process, data collection, analysis, and key results. The paper will then focus on the main opportunities, challenges, and lessons learned from both the results of the LCA/LCC projects and the process of conducting the study.

Even though Industrie 4.0 is a popular topic in the manufacturing industry, many enterprises especially small and medium sized ones are not aware of the scopes of this topic. As a result, they do not know how to evolve towards Industrie 4.0. Often the first advancement attempts fail due to a lack of knowledge of the interdependencies between the three dimensions of the sociotechnical approach (technology, organization, employees). Therefore, this paper introduces a concept for an evolutionary maturity based migration model, which guides enterprises on their way to Industrie 4.0 in due consideration of the dimension‘s technology, organization and employees. The migration model uses a set of maturity levels which are designed in distinct quantities of characteristics for different criteria. In total the model contains more than forty of these criteria. With the assistance of this model enterprises are able to first locate their current state in the different production related criteria and afterwards perceive and set their next objectives. In this context, the model also considers dependencies of assorted characteristics of the criteria, and thereby reveals potentially next steps for the enterprises on their way to Industrie 4.0 and further necessary steps that have to be accomplished beforehand. The main goal is to enable especially small and medium sized enterprises to evolve towards Industrie 4.0 without utilizing external consulting. Hence the paper will begin with a description of the underlying holistic perspective consisting of the sociotechnical approach, the consideration of the individual situation and the strategic goals. Subsequently the development process of the model will be set out. Afterwards the developed migration model will be presented and the different parts as well as their purposes will be described. The paper will finish with a short report on the validation of the model in practical applications within real enterprises.

Increasing product variety and the shortening of product lifecycles require a fast and inexpensive reconfiguration of existing manufacturing automation systems. To face this challenge one solution is a Digital Twin, which can be used to reduce the complexity and time of reconfiguration by early detection of design or process sequence errors of the system with a cross-domain simulation. For engineering the Digital Twin and systemically synchronizing the data of mechatronic components in the interdisciplinary engineering models of a Digital Twin during the life cycle of manufacturing automation systems, this paper presents a concept for the engineering of a Digital Twin based on model integration in a PLM IT-Platform and an Anchor-Point method to systematically detect variances of the mechatronic data structure between the digital models and the physical system. The data of a mechatronic component from interdisciplinary domains, developed by the corresponding engineering tools are referred to as anchor points. This paper analyses domain-specific challenges in automation software-code to develop an assistance system for rule-based consistency check and for synchronizing the engineering models of the Digital Twin of the manufacturing automation system based on the Anchor-Point method.

The paper discusses experiences from a concurrent product- and automated assembly process-development in a manufacturing company from early design to design freeze. The product is a compact product consisting of a plastic casing housing electronic components which is currently entering production. The company is a high-tech manufacturer operating in a high-cost country delivering safety products in a business to business market. The case study is based on project documentation, analyses of product and assembly concept, lab tests as well as dialogue with the manufacturer and the product designer. The main author was involved in the automated assembly process development and Design for Automatic Assembly (DFAA). The product and the automated assembly line were designed in parallel, throughout the entire product development process; from idea and concept development until the pre-production stages. In the early stages of the project the product was redesigned on a frequent basis, and each new design was evaluated for its automated manufacturability. In this process several DFAA methods were applied. The product designers also produced several prototypes by a plastic additive technology (3D printers) that were assembled in a prototype automated cell to assess product design and assembly solutions, and to reveal weaknesses that were not detected in the analysis. This paper compares the different DFAA methods used such as DFA2, as well as a custom DFAA review spreadsheet. Additionally, the paper discusses the interaction between product design and production process design, and effects on the outcome. Finally, the paper suggests design process improvements and guidelines.

Within their lifetime, products and processes pass through characteristic periods, which can be divided into distinct phases, such as design, production, use, and disposal. Specially, the production phase of products consumes a great amount of energy, non-renewable materials, renewable materials, ancillary inputs, and fossil fuels. Moreover, significant amounts of emissions (wastes, effluents, and greenhouse gases) are generated, which lead to sustainable impacts, such as extra costs, environmental damages, social issues. Through a systematic overview of resources and emissions during the production planning process, potential sustainable impacts can be identified and possibly avoided. The paper presents a concept for a fuzzy inference model to evaluate production programs for short- and mid-term production planning according to sustainable indicators. For this approach, the paper presents criteria to select applicable measurements for sustainable production planning, three categories of sustainable indicators to evaluate production programs, a procedure to develop the fuzzy inference model, and possible actions for optimizing production programs to increase the degree of sustainability. In future works, the fuzzy inference model will be implemented in enterprises to demonstrate the benefits of sustainable production planning.

The development of assembly manufacturing systems of complex products, such as automotive vehicles, needs systematic approaches. This paper proposes a new development method based on hierarchical modeling of a complex product and its assembly processes. The method integrates product and process for assembly system development by decomposing a complex product according to its hierarchical architecture in a product domain and creating the respective assembly flows in a process domain. Based on the integrated product-process hierarchical model, this paper presents three steps of manufacturing system development: 1) to plan overall assembly system flow, 2) to configure subassembly lines, and 3) to design the functionality and processes of main assembly workstations. The paper demonstrates and discusses the first two steps of assembly system development with examples. This method can make assembly manufacturing development more systematic, standardized, and efficient. The method also promotes product design variety and modularity for DFM.

The process that involves companies developing the capabilities to provide services and solutions that supplement their traditional product offerings is commonly called servitization. With regards to manufacturing, the servitization process has been found to provide many advantages, such as: increasing the value of the offering, enhancing product customization, developing customers’ loyalty, generating profits throughout the whole product life cycle, etc. Despite the many studies related to this process, there is a major lack concerning its quantification. Through an in-depth analysis of medium-large size Italian companies in the manufacturing sector, this paper examines the process of servitization proposing (i) an assessment of its extent in terms of percentage of servitized companies (ii) a taxonomy of the services offered and (iii) an estimation of their relative diffusion. Also, the paper offers a perspective on the effects that this process may have on production technologies and systems.

Augmented Reality (AR) technology for maintenance aims to improve human performances by providing relevant information regarding both corrective and preventive maintenance. The development of an AR system involves the choice of a hardware, a development software and a visualisation method. These selections are challenging due to the wide choice of services and options available which result in fragmentation: different development processes and different user experiences. In order to ease the selection of an AR system for supporting maintenance operations, this paper proposes an innovative process. It guides the reader to identify the requirements and the constraints for any specific application through a number of questions developed in this study to help with the selection. This results in suggestions for the selection of the hardware, the development software and the visualisation method. The process is built based on a literature study, grey documents and experts interviews. Future works includes the validation of the selection process proposed in this project. It could be done by comparing the choices made using the proposed process with the choices made by experts for the same case study. Moreover, the decisional process could be extended to face the economical and ergonomics aspects related with the selection of an AR system. It could be done expanding the literature research including studies which investigate into the economical and ergonomics consequences of the application or AR for maintenance. Paper presented at The 5th International Conference on Through-life Engineering Services (TESConf 2016)

The life cycle of complex products is subject to multiple uncertainties. Designers include margins into the product to cater for these uncertainties: safety margins, which is typically included in the requirements against the uncertainties of use and design margins against the uncertainties of design, such as changing requirements or engineering change. In practise the terms design margins and safety margins are sometimes used interchangeably. At the end of the design process, a product might include considerable overdesign, which can increase the initial cost as well as the running cost of many complex systems. Late discovery of both overdesign and lack of safety margins are also expensive to deal with in late phases. This paper explore the role of safety margins and design margins in the design process based on two case studies in truck design and jet engine component design. The paper shows that margins are added both to the requirements and the design parameters, so that companies run the risk of duplicating margins throughout the process without different teams being aware of it. This paper argues that a clearer and common description of design margins can reduce undesired iteration in development processes arising from misconceptions and aggregation effects in the development of complex systems.

The Set-Based Concurrent Engineering (SBCE) is the methodology that can improve the efficiencies and effectiveness of product development. It is found that the SBCE approach provided a suitable knowledge environment to support decision making throughout the development process. This paper presents the potential tangible benefits gained from the application of the SBCE in an industrial case study of a Surface Jet Pump (SJP) that is used to revive the production of oil/gas from the dead wells. The well-structured SBCE process model and the process of identifying the potential benefits proposed in this paper will clarify the gap in the development of the SBCE in the company. The potential tangible benefits are established in a few key areas such as product innovation, product performance, manufacturing cost, and project success rate.

This paper presents and briefly describes the methodology used to get the systems and conceptual design of a train cab front cleaning robot. While the sides of the trains are cleaned by a mechanised washer, the cab fronts are cleaned manually which imply a number of health and safety issues. The aim of this project is first to carry out an analysis of the current procedures in order to detect the possible gaps in the process, generating a list of requirements that will make possible the conceptual design of a cleaning system that fulfil those requirements. The proposed solution includes the division of the system in various subsystems where different solutions for each subsystem will be considered, analysed and selected as a final option to develop a prototype. This paper focuses in the main structure of the robot that holds the end-effector; different conceptual designs are shown that comply with the requirements set in the systems design.

In Germany the growing demand for customized systems and integrated solutions in machinery enhance the importance of special machinery. Within this industry, the commissioning process represents a significant part in the product engineering process and forms the base for reliability and performance during future operation. However, there is little research focusing on this process for special machinery. In particular, there has been little discussion on methods to evaluate alternative test processes or arranging test processes along the commissioning process. Therefore, this paper develops an application-oriented simulation tool that allows an evaluation of test alternatives and an arrangement of test processes during the commissioning process in special machinery. The authors decided to use Bayesian Networks to model the commissioning process as they enable the connectivity of multiple modules and integrate the stochastic dependencies along the processes. In addition the paper reveals two concepts to deal with unknown processes and the lack of data. Applying the simulation tool in a laser system manufacturer reveals that the simulation tool allows an evaluation as well as the identification of risks and need for countermeasures.

It has become common practice to apply simulation during product development and production planning. The increasing demand for individualized goods requires the ability to produce in small lot sizes and therefore more flexible resources, which leads to the use of cyber-physical systems (CPS) in manufacturing. This papers aims to look at the changing requirements, pitfalls and possible solutions when applying simulation to CPS. The research is based on a case study of a large car manufacturing company that has already implemented CPS in one production line. The paper will also provide an overview of simulation types and discuss their fitness.

Modern aircraft are more integrated with advanced systems functionalities, which result in ever-increasing aircraft complexity, further development difficulties and development delays. These system complexities are mostly in the form of system interactions that make it difficult to understand the overall system characteristics. At the early stages of final assembly line (FAL) design, one of the most important objectives is to arrange the installation and test tasks from components to sub-systems and systems in the proper sequence to meet the designed functions and prevent hazards from the integration process. Improper sequencing of the final assembly process will cause rework, time delays, cost and potential safety risk in development. In the field of final assembly line design, previous research has mostly focused on assembly line balancing or supply chain design based on structural parts assembly. However, these approaches do not consider the early final assembly line definition or test allocation for system functions. In this paper, the research proposes a method based on a systems engineering view and integrated computer aided design (CAD) to help better understand system interactions and generate viable final assembly process sequencing. This research aims to develop a concept of unified master data for final assembly design, which contains 3D geometrical CAD, system functions and interaction characteristics. The paper will present the methodology framework, key concepts and associated industrial software packages for implementation. The paper concludes with further discussion of an initial case study.

This paper presents an approach for a model-based planning process for the early phases of manufacturing system planning (MSP). The goals are a better integration of MSP with product development (PD) in the early design phases and an improvement of the coordination of the MSP-related planning disciplines. The presented approach is based on model-based systems engineering (MBSE) and is supported by a modeling scheme which uses the systems modeling language (SysML). The approach consists of a process description of the MSP and of different so called SysML views which describe the information artifacts of each MSP step. It is divided into four different modeling levels that describe the manufacturing system's structure and behavior from different points of view. In order to validate the approach, an exemplary cylinder head production was modeled. Extractions from this example are shown as SysML-diagrams. To conclude the paper, the advantages and disadvantages of using a model-based planning approach with SysML for MSP are discussed.

This paper provides a preliminary study of framework development to manage co-creation process in order to improve customer satisfaction and environmental performance. The study clarified the importance to manage co-creation process for PSS. The discussion on PSS and Co-creation process reveals similarity regarding network and technology requirement to establish the system implies that co-creation process naturally embedded in PSS. Nevertheless, managing the co-creation process become another challenge. To manage co-creation process for PSS, this paper identified the influential factors of co-creation process considering the network and technology. The factors that included in the networks are number of actors, degree of centrality, diversity of actors and network density. The influential factors of co-creation process from technology perspective are modularity and system interoperability. The expected benefits for the company will be in terms of knowledge of co-creation management under product-service system., 9th CIRP IPSS Conference: Circular Perspectives on PSS.

Implementation of lean manufacturing in any type of organizations can bring many benefits, such as reducing waste and improving operating efficiency. However, lean implementation is not a straightforward process. Although a number of frameworks have been presented, still many companies find it difficult to implement lean. Furthermore, most of these roadmaps are for large manufacturing companies, and not for small and medium enterprises. Unfortunately, there is not a recipe that if used can guarantee a successful implementation. Furthermore, unsuccessful implementation can have a great impact on organization's resources, but even more importantly, affect employees and their confidence in lean philosophy. In the present paper, the most prominent lean implementation frameworks will be discussed, under the prism of the needs of SMEs. The challenges for the SMEs in their lean journey are discussed. Paper originally presented at Manufacturing Systems 4.0 – Proceedings of the 50th CIRP Conference on Manufacturing Systems, held 3 – 5 May, 2017, Taichung City, Taiwan.

The paper addresses intelligent and sustainable production in the sense of combining and integrating online predictive maintenance and continuous quality control. The rationale for combining and integrating them is that continuous quality control can provide input to the online predictive maintenance in cases where no signs of maintenance issues have been indicated and inadequate output is produced (and the process parameters cannot be adjusted in order to meet the output specifications). The paper outlines the first part of an action research effort at Gestamp HardTech AB in Sweden, whose objective is to keep its position as a world-leading provider of press-hardened vehicle parts. The first initial design criteria concerned with simplicity and low-cost was changed after learning more details and what can be accomplished, and the updated first design criteria focused instead on robustness, high-quality output and future-proofing. The intermediary result is an action plan for the technical change, whereas the organizational change will be addressed later during the action research effort.

In response to diversified needs in the market, the manufacturing industry is required to provide more user-oriented products and services than ever. In order to satisfy such needs, much attention has been paid to personalization, which, in this paper, refers to the process of designing, manufacturing, and providing different products and services for each individual user. There are key enablers to foster personalization because of technological advancement. Since personalization is considered an approach to prolonging the value lifetime of a product and minimizing resource input, it should be further discussed in the field of lifecycle engineering. To realize personalization, a methodology to design such products is essential. We call such design as “Personalization design.” The goal of this research is to develop a theory for personalized design. In this paper, we propose the concept of personalization in the context of product and service design including a life cycle perspective. We firstly show examples of personalization and their characteristics as context, target phase and participation. This is followed by a presentation of the concept of personalization. Then, we show how the actual personalized design system was designed through a case study on designing equipment for rehabilitation hospital. In this case, participation of multi-stakeholder has a great influence on a design solution. Finally, we discuss the future direction of design research for personalization.

The application of cloud storage and Case-Based Reasoning (CBR) technology in bending process is researched in this paper. Firstly, some of the essential features of cloud computing are briefly discussed with the end-users. Enterprises use the cloud as a platform to store data and support the Case-Based Reasoning technology, for which the core parts are case retrieval and case revise (reuse). Next, the difficulty of evaluating weights of condition attributes in case retrieval and the insufficiency of case revise strategies are stated in the paper. A new instance of the similarity and instance attribute weight calculation algorithm is introduced to solve the problems of similarity measurement and weights assignment in Case-Based Reasoning. Finally, the workflow for Case-Based Reasoning of database is analyzed, and the effectiveness of using this method to determine the recommended in the bending process parameters is demonstrated. Also the importance of knowledge reuse is reflected.

It is said that PCB (printed circuit board) of used electronics contains considerable amount of critical metals, rare earths, and so on. However, one of the problems in utilizing such used products is that the valuable materials scatter among huge numbers of small-sized electronics. Efficient methods of collection and concentration are necessary. Although manual disassembly and separation of PCB is a good way to enhance the quality of the recycled materials, it causes a large labor cost. As a solution to this problem, this paper focuses on a new concept of recycling process which is to outsource such manual operation to unspecified workers via internet. The concept will be also helpful to reduce environmental impact caused by unnecessary transportation of the used products. This paper has proposed the concept of the outsourcing of recycling operations and discussed the advantages of the concept. And then, it tried to prototype a mechanism to enable the idea. The paper carried out a basic design of screening and sorting mechanisms and made some experiments of operation. The basic results obtained in this paper clarified that the remote recycling concept is feasible and promising.

Current trends in manufacturing focus on the use of Information and Communication Technologies (ICT). The physical world and its virtual representation are increasingly converging, which leads to Cyber-Physical Production Systems (CPPS) in the manufacturing environment. CPPS synergize conventional production technology as well as ICT, allowing machines and products to exchange information, trigger actions and control other components autonomously. Therefore, seamless communication between physical objects of the shop floor and various computer systems is required. The Reference Architecture Model Industrie 4.0 (RAMI4.0) provided by the Plattform Industrie 4.0 specifies requirements for CPPS consisting of Industrie 4.0-components. In such systems, a major goal is to enable communication of I4.0 components among each other via industrial networks. For this purpose, RAMI4.0 suggests that each component has a virtual representation and uses Service-Oriented Architecture (SOA) based communication with I4.0-semantics. This paper describes a systematic approach to OPC Unified Architecture (OPC UA) information model for representing the static and dynamic behavior of manufacturing systems. Moreover, the approach is generic in the sense that it can be used to define information models for multiple target technologies, such as OPC UA, MTConnect and others. It even allows to reuse large parts of the generated models for similar manufacturing utilities and various target technologies. Therefore, we first present a concept for system analysis and design by using the Unified Modeling Language (UML), which is widely accepted for interdisciplinary work. The information gathered is then transformed to OPC UA information models which serves as target technology in this paper. The purpose of this approach is to simplify the process of defining virtual representations of manufacturing systems. Applying the presented concept allows transformation of classic manufacturing systems into CPPS with SOA-based communication and semantically rich virtual representations of individual components. It is therefore well suited to meet the requirements specified by RAMI4.0.

The high variability of customer expectations results in the complexity of product development and manufacturing processes, which exists obviously in all types of production systems. One of these production systems with a high level of complexity, is single-item production, which is addressed in this paper. The preparation process in single-item production is usually wasteful and complicated. The question is: how can a product be produced most efficiently in the single-item production process. Recently, due to the increasing application of variant-oriented product modelling, the efficiency of preparation processes has been increased. But deficiency of harmonisation between design and production structures limits the automation of the preparation and planning process after the design process. In this paper, we introduce an approach to restructure the production processes and also harmonise the design and production structures in single-item production system. Due to this structure, a parts list has been adapted. This adaptation promotes the automation of the preparation and planning process. To achieve this goal, ERP (Enterprise Resource Planning) and PDM (Product Data Management) systems should not only be configured but also interconnected on the base of this introduced method. As a result, we put forward an integrated model to minimize circle times in single-item production.

Over the last decades, one of the steadiest challenges for manufacturing companies is the need for reduction of time-to-market and for enhancement of the efficiency of their product engineering process (PEP). Triggering factors are changing customer demands, shorter technology cycles that enforce product changes and a noticeable market saturation. Hence, companies need to increase the efficiency of the PEP despite considerable improvements in this field such as concepts of simultaneous engineering and digital factory. Today, the three main phases of the PEP (product development (PD), manufacturing system planning (MSP) and manufacturing) are still performed sequentially. Due to already existing improvements in parallelizing steps of the PEP, efforts for further improvements should concentrate on the interface between MSP and PD. Traditionally, MSP starts after PD is completed. Thus, on one side, information regarding the product's manufacturing is withheld from product developers. As a result, decision making assistance for selection between design alternatives is not available. On the other side, MSP is not able to influence the product design. This leads to more expensive or not manufacturable products. This paper presents an innovative approach for an integrated MSP based on fuzzy information from early phases of PD. It solely uses information from specification phase and conceptual design phase of PD within the first steps of MSP. The approach aims at noticeable improvements e. g. more frequent feedback loops, reduction of expensive correction loops after product development, and a smooth manufacturing ramp-up. The paper summarizes the theoretical foundations for PD and MSP, highlights the need for research, and outlines further steps for the concept development. Additionally, early phases of PD and MSP are described and investigated in more detail with regard to links between the two domains. The basis for the development of a concept is given which aims at an early start of MSP and more efficiency within the PEP.

“Additive Manufacturing” (AM) is an emerging, highly promising and disruptive technology which is catching the attention of the Defence sector due to the versatility it is offering. Through the combination of design freedom, technology compactness and high deposition rates, technology stakeholders can potentially exploit rapid, delocalized and flexible production. Having the capability to produce highly tailored, fully dense, potentially optimized products, on demand and next to the point of use makes this emerging and immature technology a game changer in the “Defence Support Service” (DS2) sector. Furthermore, if the technology is exploited for the Royal Navy, featured with extended and disrupted supply chains, the benefits are very promising. While most of the AM research and efforts are focusing on the manufacturing/process and design opportunities/topology optimization, this paper aims to provide a creative but educated and validated forecast on what AM can do for the Royal Navy in the future. This paper aims to define the most promising next generation Additive Manufacturing applications for the Royal Navy in the 2025 – 2035 decade. A multidisciplinary methodology has been developed to structure this exploratory applied research study. Moreover, different experts of the UK Defence Value Chain have been involved for primary research and for verification/validation purposes. While major concerns have been raised on process/product qualification and current AM capabilities, the results show that there is a strong confidence on the disruptive potential of AM to be applied in front-end of DS2 systems to support “Complex Engineering Systems” in the future. While this paper provides only next-generation AM applications for RN, substantial conceptual development work has to be carried out to define an AM based system which is able to, firstly satisfy the “spares demands” of a platform and secondly is able to perform in critical environments such as at sea.

Manufacturing Complexity has been extensively reported in the literature in the ways it can be classified, modelled, assessed and measured. However, the use of complexity measures for shop floor decision making has not been studied exhaustively. The paper demonstrates the use of a complexity measure for shop floor decision making. Knowledge of the transition of shop floor complexity into undesirability can give a correct indicative for any decision maker to intervene and take the necessary corrective actions to bring the system back to its desirable state. The current paper presents an information-theoretic approach based model which considers production scheduling, maintenance and quality functions simultaneously to come up with a complexity quantifier for a shop floor. At any point in time, various environmental factors like machine failures, corrective maintenance time variability, due date alteration, process shifts etc. are simulated into the future and their effect on the job states both in terms of schedule and quality are observed. The probability of these state occurrences is then quantified as complexity of situation which is subsequently scaled to a penalty based “undesirability index”. The complexity is re-evaluated every time a fresh event occurs, thus enabling the decision maker to be more predictive about the future state of the system and in turn, the performance of each of the manufacturing functions. Thus, the model so developed, deploys a complexity based look-ahead mechanism for identifying undesirable state transitions. The novelty of the work lies in the way it has been developed keeping the perspective of a shop floor manager in view and also in the way it can be readily used for decision making.