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This paper elaborates on the modeling and control of an Unmanned Aerial Vehicle (UAV) for delivery purposes, thereby integrating computer-aided design, multibody dynamic modeling, and motion control analysis in a unified framework. The UAV system designed in this study and utilized for item delivery has a quadcopter structure composed of four arms connected to a central trunk. In this investigation, the proposed design of the delivery drone is systematically modeled employing the multibody approach, while SIMSCAPE MULTIBODY is the software used for performing the dynamic analysis and for devising the final design of the control system. To this end, starting from the CAD model designed using SOLIDWORKS, the control system of the quadcopter is developed by performing dynamic simulations in the MATLAB/SIMULINK environment. Additionally, another fundamental contribution of this paper is the analytical derivation of the nonlinear set of algebraic constraint equations peculiar to the present multibody system, which characterizes the kinematics of the delivery drone and describes the relative angular velocity imposed between two rigid bodies as nonholonomic constraints. Furthermore, as discussed in detail in this paper, the choice of the propulsion system and the design of the individual components heavily depends on the structural and functional needs of the UAV under study. On the other hand, the control system devised in this work is based on cascaded Proportional-Integral-Derivative (PID) controllers, which are suitable for achieving different maneuvers that are fundamental for the motion control of the delivery drone. Therefore, the final performance of the UAV system is a consequence of the regulation of the feedback parameters that characterize the PID controllers. In this respect, the paper presents the refining of the parameters characterizing the PID controllers by using both an internal MATLAB tool, which automatically tunes the controller gains of single-input single-output systems, and by observing the resulting transient behavior of the UAV system, which is obtained through extensive dynamical simulations. The set of numerical results found in this investigation demonstrates the high performance of the dynamical behavior of the UAV system designed in this work. [ABSTRACT FROM AUTHOR]

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The Three-wheeler engine crankcase is the part which protects the inside of the engine. Every component despite appearing stationary the structure transmits and receives highly fluctuating loads at high frequency from the piston, crankshaft, various pumps and gears inside of it and its walls ribs and surfaces mate with the other parts to allow. For this functionality we focused on all the characteristics as topology load conditions etc. and then created a model in solid works software after designing the model of crankcase the analysis is performed by focusing on topology. As the main aim of this work is to optimize the weight of crankcase, required parameters are taken into consideration and the crankcase is analyzed with different types of materials in order to achieve the weight reduction. We aim to design and optimize the crankcase by reducing the overall weight offered by the component in the internal combustion engine and finally integrate the optimized parameters to the existing model of the crankcase to contribute the overall efficiency longevity and environmental impact of the internal combustion engine.

This paper aims to design a suitable irradiation box of topaz stones and improve the neutronic parameters by maintaining the necessary conditions for their cooling in Tehran Research Reactor (TRR). In this way, by defining an appropriate neutron filter and simulating the irradiation box in the TRR core with MCNPX2.7 code, the neutronic parameters of the core are calculated, and the best configuration is selected. Then, various components of the irradiation channel are simulated using the Solidworks software, and thermal calculations are performed using the Flow Simulation plug-in. The results showed that although the presence of water in the irradiation channel and topaz box results in good cooling for topaz stones, the slowdown of fast neutrons causes intense activation of the stones. However, by using a closed-loop independent of the reactor pool water and a gaseous fluid such as air, the thermal neutron flux and consequently the activity of the stones is reduced. Moreover, the results demonstrated that, in this case, acceptable conditions could be provided for long-term and safe irradiation of stones by selecting the appropriate fluid velocity and adjusting the core power.

У статті обґрунтовано методику впровадження системи автоматизованого проєктування, інженерного аналізу й підготовки виробництва SolidWorks та її додатку SolidWorks Simulation в освітній процес закладів вищої освіти України. Застосування сучасних інформаційно-комунікаційних систем в освітньому процесі та у наукових дослідженнях є необхідною умовою для вивчення складних технічних систем. Процедури комп’ютерного моделювання надають можливості для цілісного вивчення поведінки систем різної складності. Комп’ютерне моделювання може застосовуватись під час проєктування технічних систем, вивчення їх властивостей, оцінці досконалості наявних систем і розробки шляхів їх модернізації. Застосування комп’ютерних моделей перетворює комп’ютер на універсальну експериментальну установку: 1) у комп’ютерному дослідженні забезпечений повний контроль за усіма параметрами системи; 2) комп’ютерний експеримент дешевий і безпечний; 3) за допомогою комп’ютера ставляться «принципово неможливі» експерименти. Суть комп’ютерного моделювання – отримання якісних і кількісних результатів за наявною моделлю. Якісні висновки, що отримуються за наслідками аналізу, виявляють раніше невідомі властивості системи: її цілісність і структуру, стійкість, динаміку розвитку тощо. Кількісні висновки мають характер прогнозу майбутніх або тлумачення колишніх значень змінних, що характеризують цю систему. Застосовувати інструментарій SolidWorks під час освітнього процесу пропонується в кілька етапів. На початкових етапах навчання принципи моделювання можуть вивчатись в дисципліні «Інженерна і комп’ютерна графіка». Удосконалення умінь твердотільного моделювання вузлів і механізмів запропоновано здійснювати в дисципліні «Деталі машин». Вирішення прикладних завдань передбачено в професійно-орієнтованих навчальних дисциплінах та під час науково-дослідницької роботи здобувачів вищої освіти.

Background: Recent advancements in additive manufacturing have made 3D design a desirable skill in combating the historically slow development of biomedical products. Due to the broad applicability of additive manufacturing to biomedical engineering, 3D design and 3D printing are attractive educational tools for biomedical engineering students. However, due to the multidisciplinary nature of biomedical engineering, finding a suitable spot in the curriculum to teach students basic and application-based skills for 3D manufacturing is difficult. Furthermore, prior training in fundamental 3D design skills may be needed to support the use of application-based supplementary content. Results: We designed a SolidWorks Simulations toolkit to complement a sophomore (2nd-year)-level Biomechanics course and distributed this assignment to students with and without prior training in 3D design delivered in an introductory biomedical engineering course. Using short videos, example-based problem solving, and step-by-step tutorials, students completed this as an extra-credit assignment and completed a survey gauging student opinion on SolidWorks and 3D design, confidence in each target skill, and the effectiveness of assignment delivery. The compilation of survey responses suggests that the assignment effectively increased positive responses in student opinion on interest in and likeliness to use SolidWorks in both groups. However, confidence in the target assignment skills was higher in the trained group and fewer problems occurred in operating SolidWorks for trained students. Further, analyzing the distribution of student grades with respect to survey responses suggests that responses had no relationship with initial class grade. Conclusion: These data collectively indicate that prior training provided to the students had a positive impact on the effectiveness of the assignment although increases in student opinion on the utility of 3D design were observed in both trained and untrained students. Our work has generated and identified a useful educational supplement to enrich existing biomedical engineering course materials with practical skills. [ABSTRACT FROM AUTHOR]

Dynamic behavior of agricultural implements has always been a challenging topic for researchers. In precision farming, precise control of the agricultural implements is a very important task. To study the dynamics of agricultural implements, Researchers conduct field experiments as well as laboratory tests. These methods are very costly and the measurements are usually associated with some errors. Providing well-controlled experimental conditions in practice is very difficult, if not impossible. In this article, the capability of the SolidWorks in simulation and predicting the dynamic behavior of a conventional sprayer boom is discussed. To validate the results, field tests were conducted using a conventional sprayer boom. The results showed that there was no significant difference at 95% confidence level between results from computer simulation and those obtained from the field test of conventional sprayer boom. [ABSTRACT FROM AUTHOR]

This article deals with the use of manufacturing process simulation as a verification tool. Simulation proves to be a valuable tool for testing and evaluating production processes and their effectiveness in a controlled virtual environment. The authors discuss the advantages that simulation brings, such as the identification of defects, the optimization of production parameters, and the prevention of problems even before the start of the real production process. The use of simulation of the production process enables the acquisition of valuable knowledge about the influence of various factors on the final product quality, the optimization of production procedures, and the minimization of the risk of errors. The authors emphasize that the simulation provides accurate information that helps in the decision-making process and allows the prediction of possible problems and their solutions before they arise. [ABSTRACT FROM AUTHOR]

The value of a semiconductor's diode temperature determines the correct operation of this element and its useful lifetime. One of the methods for determining the die temperature of a semiconductor diode is through the use of indirect thermographic measurements. The accuracy of the thermographic temperature measurement of the diode case depends on the prevailing conditions. The temperature of the mold body (the black part of the diode case made of epoxy resin) depends on the place of measurement. The temperature of the place above the die is closer to the die temperature than the temperature of mold body fragments above the base plate. In addition, the difficulty of its thermographic temperature measurement increases when the surface whose temperature is being measured is in motion. Then, the temperature measured by thermography may not apply to the warmest point in the case where the die temperature is determined. Information about the difference between temperatures of the different parts of the mold body and the die may be important. For this reason, it was decided to check how much the temperature measurement error of the die diode changes if the temperature of the diode case is not measured at the point that is above the die. [ABSTRACT FROM AUTHOR]

In order to solve the problem that UAVs carrying cargo still need to pick up and unload the cargo manually or by large unloading device after arriving at the ground logistics station, the automatic unloading device of the ground station of the intelligent logistics system was studied. A three-dimensional model of the automatic unloading device was built by Solidworks to conduct finite element analysis on the key force-bearing parts of the open cabin part. A test platform was mounted to test the express items with a weight range of 1 kg for consecutive 20 times. The test results show that the success rate of the automatic unloading device is 100%, and that it is able to unload express items of up to 8 kg in the UAV pod. The automatic unloading device works well as a whole, and can better meet the working requirements, laying the foundation for the full automation of the UAV intelligent logistics system. [ABSTRACT FROM AUTHOR]

This work investigates the issue of a hybrid trajectory tracking control algorithm (HTCA) for robot manipulators (RMs) with uncertain dynamics and the effect of external disturbances. Following are some proposals for achieving the control target. Firstly, to achieve the active disturbance rejection, we propose a uniform second-order sliding mode disturbance observer (USOSMDO) to obtain directly the lumped uncertainties without their prior upper-bound information. Secondly, a fixed-time singularity-free terminal sliding surface (FxSTSS) is proposed to obtain a fixed-time convergence of the tracking control error (TCE) without the singularity in the control input. Then, using information on the proposed USOSMDO, our HTCA is formed based on the FxSTSS and the fixed-time power rate reaching law (FxPRRL). The control proposal not only stabilizes with the global fixed-time convergence but also attains high tracking accuracy. In addition, the chattering problem also is handled almost completely. Finally, numerical simulations verify the effectiveness and advantages of applying the proposed HTCA to a FARA robot. [ABSTRACT FROM AUTHOR]

This article concerns the indirect thermographic measurement of the junction temperature of a D00-250-10 semiconductor diode. Herein, we show how the temperature of the semiconductor junction was estimated on the basis of the heat sink temperature. We discuss the methodology of selecting the points for thermographic measurement of the heat sink temperature and the diode case. The method of thermographic measurement of the heat sink temperature and the used measurement system are described. The simulation method used to obtain the temperature of the semiconductor diode junction on the basis of the thermographic measurement of the heat sink temperature, as well as the method of determining the emissivity and convection coefficients, is presented. In order to facilitate the understanding of the discussed issues, the construction of the diode and heat sink used, the heat flow equation and the finite element method are described. As a result of the work carried out, the point where the diode casing temperature is closest to the junction temperature was indicated, as well as which fragments of the heat sink should be observed in order to correctly estimate the temperature of the semiconductor junction. The indirect measurement of the semiconductor junction temperature was carried out for different values of the power dissipated in the junction. [ABSTRACT FROM AUTHOR]

The article presents the results of study of deformation of fluoroplastic Raschig rings loaded with transverse force under conditions of operation in column apparatuses of drying and absorption departments of sulfuric acid production plant. The moduli of elasticity of F-4MB and F-4TG fluoroplastic brands under these conditions were determined by computer modeling and full-scale experiment. The permissible deformation and minimally possible wall thickness of Raschig rings from these fluoroplastic brands under the operation conditions were determined. [ABSTRACT FROM AUTHOR]

The flywheel is the simplest device for mechanical battery that can charge/discharge electricity by converting it into the kinetic energy of a rotating flywheel, and vice versa. The energy storage systems based on flywheel now arousing great interest, since this technology can offer great advantages in durability and lifetime. However, the flywheel performance rotation is limited by the strength of the materials, from which it is constructed, and the geometry. Greater control over those parameters could improve the development of high performance of a flywheel energy storage system (FESS). The main interest of this study is to demonstrate the influence degree of each parameter of geometry by using the mathematical method of design of experiments, in order to be able to optimize the adequate parameters for a high performed shape of the flywheel. [ABSTRACT FROM AUTHOR]

Copyright of Ingente Americana is the property of Ingente Americana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The aerodynamic aspect is an aspect that really considers the force generated by the fluid flow which has an impact on performance and energy consumption while driving. The purpose of this research is to modify the standard design of the baby ganesha 1.0 generation II electric motorcycle so that it gets a design with a smaller coefficient of drag. The need for fluid flow simulation analysis To determine the coefficient of drag, one way of simulation analysis is to use solidwork, solidworks is known to have the speed and accuracy required for a successful analysis. The conceptual research paradigm R2D2 (Reflective, Recursive, Design and Development) is used to conduct research and development. Development (R&D). After the fluid flow analysis process was carried out, it was found that the modified body design of 2 baby Ganesha 1.0 generation II electric motorcycles obtained a Coeficient Of Drag of 0.0372 lower than the standard body design of Baby Ganesha 1.0 generation II electric motorcycles which only had a coefficient value. of drag is 0.0433. Through expert judgment, the modified design of 2 Baby Ganesha 1.0 generation II electric motorcycles received a percentage with a value of 82% with good qualifications.

This paper presents an approach to a go-kart chassis design, vehicle dynamics calculation, Li-ion battery capacity analysis, and electric motor choice for optimized vehicle performance. The chassis analysis shown in this paper was performed using a CAD/FEA software package, SolidWorks Student Edition. Three highlights can be found in this paper: (1) An original design was implemented; the basic analysis was composed of chassis optimization using beam elements and modeling such an optimized chassis “locally” with solid elements for sub-modeling purposes. (2) The most stressed tube joint was sub-modeled to calculate the risk of tube wall stability. (3) Vehicle dynamics were calculated for the case of braking on a curved path and the case of a collision with the front tire due to road imperfection. The authors intend to install a data acquisition system in the future to analyze the stress of local chassis tubes. The results of the SolidWorks analysis indicate a safety design for the chassis concept. The results for the sub-model stability (buckling) analysis show that the chosen tube wall thickness-to-diameter ratio gives safety factor values ranging from 1.6 to 5. Based on the stress distribution, some improvement in the middle part of the chassis can be made by using a half-a-millimeter-thicker wall tube or a larger tube diameter of a few millimeters to lower the stress. The latter will be described in this paper.

The work is devoted to the diagnostics of the stress state of systems that soften the shock load on the vehicle body, the elastic element of the car suspension such as a multi-leaf spring. The construction of a mathematical model taking into account the geometric nonlinearity according to the finite element method theory is considered. Mathematical modelling was carried out to take into account the change in the stiffness matrix of the system when changing its shape. For research, a symmetrical semi-elliptical spring consisting of five leaves is used. All numerous numerical experiments were performed in two computer-aided design (CAD) systems: ANSYS, a heavy multipurpose package and SolidWorks, a middle-level multipurpose package. Computer-aided design algorithms have been developed to expand the capabilities of CAD. The analysis of the results obtained allows to conclude that the traditional models of nonlinearity in ANSYS and SolidWorks give approximately the same results, which at the maximum point differ by 20.6% from the data of a full-scale experiment. When using the proposed model, this difference is reduced to 7.95%.

Biologically inspired autonomous underwater vehicles (AUVs) or biomimetic AUVs are made to replicate the structural and physiological features of aquatic species. Thus, incorporation of its design in AUV modelling provides higher efficiency at low speeds and improves maneuverability and controllability. This paper develops a biomimetic AUV design based on structural parameters and physiology of an adult Atlantic Salmon fish and proposes a robust control scheme for propelling the fins. For the biomimetic model design of AUV, a 3D CAD model is developed using the actual parameters of Atlantic Salmon fish. The hydrodynamic analysis is performed to calculate the effect of different angles of fin orientations on the value of drag and lift coefficients. Further, kinematic analysis of the tail propulsion system is carried out using the Denavit Hartenberg convention in the MATLAB®. Based on the obtained modeling parameters of AUV, a robust sliding mode controller is proposed for tracking the desired tail propulsion response using a DC motor under model uncertainties and disturbances. Moreover, the closed-loop asymptotic stability is also guaranteed through Lyapunov theory, which ensures the convergence of system states to the desired angular movement. Lastly, the proposed algorithm is validated using simulation results with comparative performance analysis to illustrate its efficacy.

Nhiệt độ ảnh hưởng then chốt đến nhiều quá trình vật lý, hóa học, sinh học và nhiều mặt trong đời sống của con người. Điều khiển nhiệt độ chính xác là bài toán cơ sở và rất quan trọng trong lĩnh vực điều khiển tự động. Bài viết trình bày phương pháp xây dựng, điều khiển và giám sát hệ thống nấu sữa thực vật tự động. Phần mềm Solidworks được ứng dụng để thiết kế mô hình 3D cho hệ thống, từ đó tiến hành gia công phần cứng, lắp đặt thiết bị, xây dựng chương trình điều khiển và giám sát (SCADA). Phương pháp kẻ tiếp tuyến để nhận dạng hệ thống và phương pháp điều khiển mô hình nội (IMC-internal model control) được sử dụng để chỉnh định bộ điều khiển PID áp dụng vào điều khiển nhiệt độ của hệ thống. Kết quả thực nghiệm cho thấy nhiệt độ sữa ổn định tại giá trị đặt (90oC) sau 45 phút với sai số xác lập trong khoảng 2oC. Kết quả này tương đương với kết quả mô phỏng từ mô hình động học với thời gian xác lập 45 phút và sai số xác lập khoảng 1oC. Sản phẩm sau khi nấu và làm nguội hoàn toàn sử dụng được. Như vậy, mô hình đã xây dựng cơ bản đáp ứng được các yêu cầu quy trình công nghệ của một hệ thống nấu sữa thực vật tự động.

PurposeOpen-wedge high tibial osteotomy (HTO) is a common surgical treatment for medial osteoarthritis in young and active patients. The accuracy of osteotomy is closely associated with postoperative efficacy. The accuracy of digital preoperative planning is higher than that of the preoperative manual measurement and several computer software with varying accuracy and convenience are used for digital preoperative planning. This study aimed to use the SolidWorks software for HTO preoperative planning and to determine its accuracy and reliability in HTO preoperative planning.MethodsWe reviewed the data of 28 patients with 54 with medial compartment knee arthritis who underwent open-wedge HTO preoperative planning using SolidWorks between June 2019 and March 2021. The standard anteroposterior standing whole-leg radiographs were assessed before and 6 weeks after the surgery. The correction angle, weight-bearing line (WBL) ratio, mechanical femorotibial angle (mFTA), and medial proximal tibial angle (MPTA) before and after the surgery were compared. The clinical results were evaluated using the Knee Society score.ResultsAt 6 weeks after the surgery, the WBL ratio was corrected from 16.8% to 50.5%, mFTA was corrected from 6.4° varus to 1.2° valgus, and MPTA was corrected from 83.4° to 89.3°. No significant difference was observed between the predicted correction angle before the surgery and the correction angle measured 6 weeks after the surgery (t = −1.745, p = 0.087). The knee score and function score of Knee Society increased from 76.4 and 80.7 before surgery to 95.0 and 95.7, respectively.ConclusionsThe SolidWorks software showed high accuracy and reliability in preoperative planning of open-wedge HTO in patients with medial compartment knee arthritis.

Flexible manipulator is widely used in the implementation of industial robotic due to its advantages such as low weight, low power consumption, higher load capacity, high-speed operation, small actuators and low production costs. However, the position and speed of flexible manipulator system are very difficult to control due to the tip vibration that result in degradation of performance. Modelling and control of a double-link flexible robot manipulator are presented in this study. Controlling the movement of a double-link manipulator, on the other hand, has proven to be a challenging task, especially when a flexible framework is used. Moreover, most double-link flexible manipulator system models are not developed based on real hardware. Hence, this project aims to develop a Solidworks design for double link flexible robotics manipulator (DLFRM) as well as a real hardware prototype. The control position performance of DLFRM was analyzed, and the controllers were tested on a hardware prototype. This project started with a simulation of both controllers, which are PID and FLC. The simulation was designed in Solidworks and exported to Simulink and then converted as Simscape. Then, the hardware for each controller was validated using the control parameter in the simulation. The joints for the robot manipulator were designed in Solidwork and built using 3D printing. [ABSTRACT FROM AUTHOR]

The aim of this article is to create a scale model of the production hall using 3D printing as a visualization tool. The article describes the process of creating and preparing 3D models in the SolidWorks modelling program. Visualization is handled by Twinmotion architectural software, where the production hall also includes a machine park approaching the real image of the original hall. [ABSTRACT FROM AUTHOR]

Robotic arms are complex mechatronic systems. Therefore, their design requires knowledge and experience from various technical fields, such as mechanics, electrical engineering, electronics or control. From the view of the requirements placed on developers, the design of robotic arms is one of the more complex tasks. Unfortunately, there is a lack of necessary specialists in this field of technology. Therefore, ways are sought to help existing specialists in their work and, simultaneously, reduce the time needed to design the required equipment. At the same time, there are also sought ways to open the way to this issue for developers who do not yet have enough experience. For this reason, algorithms and development tools have been developed to significantly simplify and reduce the time required to design robotic arms and simultaneously automate as much of this process as possible. The aim is to shorten the design time and achieve better results than in the case of designs according to classical procedures. [ABSTRACT FROM AUTHOR]