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There are many software can be carried out simulation of photovoltaic (PV) system such as PSIM and Matlab. Those software have their own advantages in the simulation of PV system. This paper proposed a joint-simulation of a stand-alone PV system based on PSIM and Matlab to achieve the maximum power point tracking (MPPT) of PV cells and the stability of PV system. In this paper, the main circuit is built in PSIM and the control circuit is built in Matlab. The results of simulation show that the method can make PSIM and Matlab give full play to their advantages in power conversion and control algorithm.

With joint simulation of the COSMOSMotion and COSMOSWorks, dynamics simulation and kinematics simulation of the main working device of multi-purpose vehicle are conducted under the three typical operating modes (i.e., excavating with the bucket, the bucket rod or both). Compared with the physical prototype experimental data, the results demonstrate rationality and correctness of the virtual design. The methods adopted in this paper is of reference value to the design of the like products.

This paper propose a new multiplexing technique which use the bipolar RZ signal to realize duty cycle division multiplexing (DCDM) ,we call it Absolute Polar Duty Cycle Division Multiplexing (APDCDM).Multiplexing and demultiplexing principle of APDCDM are analyzed. Here we have designed a optical fiber transmission system based on APDCDM of three users by Joint simulation with Optisystem and Matlab. Simulation result shows the feasibility of this system. By the analysis of signal energy, explain APDCDM can carry more users than DCDM.

A thermophysiological model of the human body, integrated into a FLUENT CFD software package, is applied for the joint simulation of indoor environment of a ventilated room and clothed inhabitant. The temperature of the skin surface and clothing surface through layers of clothing with different insulation level is numerically investigated in function of the clothing insulation and the different activities performed. Regression models are developed on the basis of the numerical results for both skin and clothing temperatures.

An adaptive impedance control algorithm for tendon-driven dexterous hands is presented. The main idea of this algorithm is to compensate the output of the classical impedance control by an offset that is a proportion-integration-differentiation (PID) expression of force error. The adaptive impedance control can adjust the impedance parameters indirectly when the environment position and stiffness are uncertain. In addition, the position controller and inverse kinematics solver are specially designed for the tendon-driven hand. The performance of the proposed control algorithm is validated by using MATLAB and ADAMS software for joint simulation. ADAMS is a great software for virtual prototype analysis. A tendon-driven hand model is built and a control module is generated in ADAMS. Then the control system is built in MATLAB using the control module. The joint simulation results demonstrate fast response and robustness of the algorithm when the environment is not exactly known, so the algorithm is suitable for the control of tendon-driven dexterous hands.

virtual prototyping technology 1980s developed a computer-aided engineering and virtual prototyping technology applications in the research and development of self-moving tail can greatly enhance progress in the development of the mechanical design of fully mechanized coal miningthe surface level of mechanization upgrade of great significance.

This article using AMESim and Simulink software co-simulation technology and appropriate software to establish the simulation model of the key components of the steering system, it is found the factor which affect vehicle handling and stability of steering system in the structure by analyzing the impact of various parameters on the car steering system. It is to verify the feasibility of the model and study how steering system of all kinds of main factor to influence the vehicle steering stability through Simulink and AMESim software co-simulation results cf vehicle steering stability GB experiments.

Advanced energy-saving technologies of induction heating of metals are discussed. The importance of the joint simulation of electromagnetic and temperature fields on induction heating is demonstrated. The package of specialized programs for simulating not only induction heating devices, but also technologies that employ industrial heating has been developed. An intimate connection between optimal design and control of induction heaters is shown.

It is well-known that China is a textile production and export country, especially in Zhejiang and Hangzhou province, the textile industry is well-developed with tremendous amount of application of textile machinery. This paper is about the design of rapier textile machinery with programmable logic controller, including five major functions: opening weft, leading weft, fighting weft, warping and coiling off weft. It has accomplished the function of detecting a broken weft while leading weft, while the signal of detecting is completed by store, and the function of broken warp while warping. PLC Programmer of S7200 Siemens CPU224 is used.

As a reference to some minibus,establishing the Vehicle FEM Model including Body and Frame,and discussing the effect of joint simulation on vehicle modal analysis result;using the method based on environment incentive operational modal parameter identification to obtain vehicle modal,and compare test result with simulation result,it proves that the method of weld joint simulation is more accurate;At last, the FEM Model of Interior cavity is established and the NVH problems of the minibus are found and the improvements are Put forward.

To satisfy the demand of inlet pressure for air powered engine, it is necessarily to design control valve. The design idea of control valve was proposed, and the models for simulation design were established. These models are air bottle state model, open area model of control valve, spool dynamic model and shape calculation model of characteristic vent. Based on these models, the joint simulation and the experiment test have been done. The result shows that the designed control valve can provide required inlet pressure for air powered engine and satisfy the work demand well. The result of the experiment verifies the rationality and validity of the simulation design, and the method can be used in the design of the congener valve.

The uncertainty of system parameters is not considered in traditional transfer function model of electro-hydraulic servo system, and then the accuracy of analysis is affected. Therefore the physical model of electro-hydraulic servo control system is established in simulation software AMESim platform. The system controller model is builded in the control simulation software Matlab/Simulink platform. The co-simulation interface technology is used to achieve joint simulation of electro-hydraulic servo control system.

In order to improve the road-friendliness of vehicle, this paper studies vehicle dynamic performance through establishing car model in ADAMS, hybrid control strategy in SIMULINK and the use of joint simulation technology. By using dynamic load coefficient and the road-friendliness index of dynamic load stress factor evaluate the road-friendliness of the semi-active suspension system with hybrid control strategy. The research shows that the road-friendliness will be better when the damping force distribution coefficient for 0.2 ~ 0.6.

In order to ensure the efficiency and safety of construction process control and failure analysis for the large-scale construction equipment in water conservancy engineering, which is based on specified equipment for some real engineering practices, namely TC2400-tower belt crane, a multi-body joint simulation dynamical model is given in this paper. Then, the data flow and operational process of the model are analyzed. Finally, a case study based on ADAMS and SOLIDWORKS platforms is performed to verify the validity and rationality of the given model.

The simulation of joint is pivotal for car body structural analysis in concept design phase. The detail simulation method was implemented by solving the detail joint model using non-decoupling method. The detail information was afforded about joint detail modeling and the process of non-decoupling. The process of solving the parameters of joint was also described with equations. By the solved parameter values, the joint concept was built with ball hinge elements and spring elements. At last, a comparison between concept model with detail joint simulation and detail model of car body shows that the detail simulation method in this paper is feasible and accurate.

The driver model occupies an indispensable position in the study of intelligent vehicle and vehicle handling stability. In this paper, a fuzzy PID driver model for pure electric vehicle was established. By using MATLAB/Simulink and the whole vehicle model in Carsim, a joint simulation model was build. Experiment results show that, compare to traditional PID driver model, the fuzzy PID driver model have better direction control ability to improve the vehicle handing and stability.

Contains fulltext : 48793.pdf (Publisher’s version ) (Closed access) For testing purposes of prostheses at a preclinical stage, it is very valuable to have a generic modelling tool, which can be used to optimize implant features and to avoid poor designs being launched on to the market. The modelling tool should be fast, efficient, and multi-purpose in nature; a finite element model is well suited to the purpose. The question posed in this study was whether it was possible to develop a mathematically fast and stable dynamic finite element model of a knee joint after total knee arthroplasty that would predict data comparable with published data in terms of (a) laxities and ligament behaviour, and (b) joint kinematics. The soft tissue structures were modelled using a relatively simple, but very stable, composite model consisting of a band reinforced with fibres. Ligament recruitment and balancing was tested with laxity simulations. The tibial and patellar kinematics were simulated during flexion-extension. An implicit mathematical formulation was used. Joint kinematics, joint laxities, and ligament recruitment patterns were predicted realistically. The kinematics were very reproducible and stable during consecutive flexion-extension cycles. Hence, the model is suitable for the evaluation of prosthesis design, prosthesis alignment, ligament behaviour, and surgical parameters with respect to the biomechanical behaviour of the knee.

The complexity of equipment SoS(ESoS) bring the new technical challenge to simulation development and integration, Traditional simulation development and integration mode is limited by special technology, the mode not only Influence the efficiency of simulation development and integration, but also is not conducive to the reuse of simulation resources. The paper analyzed ESoS joint simulation requirement and the characters of Service-Oriented Architecture (SOA) technology, SOA can increase the flexibility of joint simulation, and support efficiently the integration of the legacy simulation systems. Designed the SOA-based architecture for joint simulation, as well as designed and built a SOA-based joint simulation prototype. Data from a set of performance experiments is presented and analyzed to demonstrate and prove the feasibility of SOA application in ESoS joint simulation. The work made the foundation for solving the ESoS complexity questions by SOA-based joint simulation.

This paper presents a new paradigm that is possible to aid the traditional experimental analysis in timber joints research. Laboratory experiment has incurred a lot of cost and times to find optimize end distance of a timber joint. Particle swarm optimization (PSO) is applied and tested focusing on a single shear timber joints. The determination of fitness function is based on the findings from the previous datasets of the traditional laboratory experiments. The dataset includes the timber species of Kapur that emphasizes on 2D and 3.5D in diameter of end distance. Several PSO parameters were tested to find the maximum load carrying capacity of timber joint for different end distances. The findings show that PSO can give a feasible solution for a single shear strength timber joint performance. It demonstrates that the PSO has a potential to be used as a timber joint simulations that would be beneficial to timber joint researchers in predicting the load carrying capacity of a joint and contributes in reducing time and cost.

CNC laser cutting machines are widely encountered in the manufacturing workshops. The dynamic behavior and working accuracy of these machines decreases in time, due to normal wear and intensive use. Consequently, a process or re-tuning the control parameters is required and it has to be performed at the workshop level. The paperwork presents a joint simulation and experimental process for improving the accuracy of CNC laser cutting machines. The approach is focused on the capability of the machine to cut rectangular corners.

As the satellite navigation system BD-2 comes to be more and more sophisticated, the RDSS/RNSS dual-mode user receiver covering two work modes of RDSS and RNSS are developing rapidly. It is demanded to simulate the satellite signals in different conditions to test the behaviors of the dual-mode user receiver. RDSS is an active positioning system. Otherwise, RNSS is a passive positioning system, without transmitting signals. The key point in developing a RDSS/RNSS dual-mode signal simulator is how to guarantee the synchronization of these two different kinds of systems. A signal simulation method adapted to RDSS and RNSS is proposed here; the formulae for the Doppler frequency shift are derived, which have solved the pseudorange consistency problem of RDSS and RNSS signal in the same GEO. The experiment results validate the algorithms developed here. The results in practical use show that the RDSS/RNSS dual-mode signal simulator developed here is meeting all the test requirements.

An electro-hydraulic parallel brake scheme based on Anti-lock Braking System (ABS) is proposed. Taking advantage of the hydraulic control unit of ABS, the regenerative brake is preferentially adopted as far as possible on the premise of braking safety. Then, a detailed brake system model including ABS unit is built using the joint simulation technology of AMEsim and Matlab, the parallel brake control logic is validated on this model. Finally, methods for the coordination between parallel brake system and ABS are analyzed.

This paper presents a virtual reality environment for the design and simulation of transitic systems. This framework is called SimSED (Simulation of Discrete Event Systems). The objective is to test and validate the control code of the system before on-site implementation. The control code is validated by joint simulation of the transitic system's material part and control part. The system is validated according with a set ofscenarii. The virtual reality environment provides a tool for representing a transitic system in three dimensions, which encapsulates the dynamic behavior of the system. The applications developed by using this framework are also presented.

Examines the technology of composability in simulation systems. Composability refers to the ability of a simulation to be flexibly configured to adapt to a range of missions, scenarios, simulation models, hardware environments and security configurations. Composability confers maximum flexibility to the usage of the simulation. Simulation composability is a requirement of the Joint Simulation System (JSIMS). JSIMS is currently being developed by the US Department of Defense and is intended to deliver commander and command staff training. This paper examines simulation composability from the JSIMS perspective and explores the overall technical approach and related issues.

The use of Modeling and Simulation (M&S) within the Department of Defense (DoD) has under gone a major change over the last several years. Unfortunately, the vast majority of the tools have not kept up with these changes. This is partially related to ongoing chasm between the academic and production factions within the M&S community. Due to the diverging agendas of the factions, there is little dialogue between them. This result in the needs of the production community not being met by the academics. Likewise, the advancements made by the academic community are often not included in the production systems. In this paper we will attempt to convey the background and issues facing one such production program, the Joint Simulation System (JSIMS), in an attempt to help bridge the chasm. 1 WARFARE IS EVOLVING

This Operational Requirement supports the mission need identified in Air Force Mission Need Statement USAF 009-93. The Mission Needs Statement for the Air Force National Air and Space (Warfare) Model (NASM) analyzed deficiencies associated with the current Air Force Air Warfare Simulation (AWSIM) used for battlestaff training and determined that a new system was required to correct these deficiencies and to interface with the next generation of Department of Defense models being developed as a part of the Joint Simulation System (JSIMS). NASM will be designed to overcome the current limitations in AWSIM and provide a modern foundation upon which to base the further evolution of training exercises in the foreseeable future.

Mineral deposits frequently contain several elements of interest that are spatially correlated and require the use of joint geostatistical simulation techniques in order to generate models preserving their spatial relationships. Although joint-simulation methods have long been available, they are impractical when it comes to more than three variables and mid to large size deposits. This paper presents the application of block-support simulation of a multi-element mineral deposit using minimum/maximum autocorrelation factors to facilitate the computationally efficient joint simulation of large, multivariable deposits. The algorithm utilized, termed dbmafsim, transforms point-scale spatial attributes of a mineral deposit into uncorrelated service variables leading to the generation of simulated realizations of block-scale models of the attributes of interest of a deposit. The dbmafsim algorithm is utilized at the Yandi iron ore deposit in Western Australia to simulate five cross-correlated elements, namely Fe, SiO2, Al2O3, P and LOI, that are all critical in defining the quality of iron ore being produced. The block-scale simulations reproduce the direct- and cross-variograms of the elements even though only the direct variograms of the service variables have to be modeled. The application shows the efficiency, excellent performance and practical contribution of the dbmafsim algorithm in simulating large multi-element deposits.

The separation process of eddy current separator is effected by the structure parameters of magnetic roller, the working parameters of the separator and some parameters of the scrap metal, such as the material, the shape, the size and so on. This is a complex process of electric field and magnetic field coupling. During this process, the sorting function of separator is powered by the existence of the eddy current power in waste particles, and the separation effect is directly determined by the flying distance of the scrap metal in the separation process. This paper armed for studying the eddy current power and the flying distance of the waste particles in separation to realize the simulation of the separation process. The eddy current force was obtained by the finite element analysis of the magnetic roller based on COMSOL, and the flying distance was got by the joint simulation of COMSOL and MATLAB.

This paper describes the mission, scope and organization of the Joint Simulation System (JSIMS) Program. The mission of JSIMS is to develop a Joint Simulation System that will provide readily available, operationally valid synthetic environments for use by the CINCs, their components, other joint organizations and the Services. JSIMS has five major objectives: integrate the range of missions of the Armed Forces within a common MS enable simulation users to readily create or access a simulation environment which supports their requirements: and enable joint simulation users to interact freely with elements of their command structure, supporting/supported organizations and other simulation centers or users. While the initial focus of JSIMS is joint planning and training activities, as the system matures, JSIMS will be available to the DoD community at large for the analysis of doctrine, organization, system and material alternatives.

Accurate mathematical modelling of joints is directly related to the need to obtain a better fundamental understanding of the role that elements of the system have on the dynamic tribological behaviour of the component it represents. Simulation models also make a contribution towards reduction of the cost of in-situ experimentation in biotribological systems, as well as overcoming difficulties with ethical and practical problems related to in-situ testing. The aim of the current work is to report on the results obtained from a dynamic model of a human hip joint. The model is used to investigate the tribological performance of the synovial fluid over a varying range of operating conditions — specifically pressure, temperature and varying load conditions. The model is based on a minimum of empirical relationships, preferring relationships grounded in solid fundamental theory. This reduces the number of parameters that can be modified in the model and ensures that predictions made are not based on external manipulations.Copyright © 2005 by ASME