Virtual Prototype Design Research Articles

Enhancing Planetary Exploration through Digital Twins: A Tool for Virtual Prototyping and HUMS Design

In recent times, the demand for resilient space rovers has surged, which has been driven by the amplified exploration of celestial bodies such as the Moon and Mars. Recognising the limitations of direct human intervention in such environments, these rovers have gained a great deal of importance. Our proposal introduces a digital twin for space exploration rovers that seamlessly integrates intricate geometric, kinematic, and dynamic models, along with sensor and control systems. It faithfully emulates genuine real-world scenarios, providing an authentic testing ground for rover prototypes and the development of damage detection algorithms. Its flexibility in replicating diverse terrains, environmental conditions, and operational scenarios significantly expedites rover development. The digital twin serves as a valuable tool in the perfecting of damage detection systems, allowing engineers to efficiently craft diagnostic algorithms. This innovative approach not only conserves valuable resources but also ensures the robustness of space mission systems, thus enhancing the overall success and safety of planetary exploration endeavours.

Design and motion analysis of a space crank rocker biomimetic aircraft

Abstract In order to better understand the flight performance and kinematics performance of flapping wing aircraft designed and developed based on the principle of bionics, a space crank rocker mechanism was tried to carry out the virtual prototype design of the bionic aircraft in space motion, and on this basis, its movement characteristics were analyzed. Analyzing the flight mechanisms and scale laws of common flying organisms yields various physical estimation parameters that affect flight characteristics. Flight patterns and motion patterns are analyzed based on the design principles of seabirds, and structural designs and mathematical models are established. Secondly, carry out the design of its flapping and transmission structures, and based on this, carry out the overall structural design and establish a three-dimensional model. Here, the kinematics analysis of its flapping amplitude and angular velocity value is carried out by combining its mechanism motion diagram, and the kinematics simulation results are compared with the theoretical results, which proves the correctness of the theoretical analysis and the feasibility of the design structure.

Preparing for the lasting effects of COVID-19 on medical training: The design and pilot study of a low-fidelity virtual reality prototype for Central Venous Catheterization training.

Over the last several decades we have seen a shift from in-person to online training that has been exasperated by the COVID-19 pandemic. Researchers believe that many of these effects will be lasting which makes it even more important that the Human Factors community seek to step back and understand how to best train complex skills in a virtual world. The current paper is focused on understanding the utility of Virtual Reality (VR) in medical education for a hands-on procedural heavy procedure - ultrasound-guided Internal Jugular Central Venous Catheterization. Specifically, the objective of this study is to identify the potential utility of VR in US-IJCVC training through the design of a low-fidelity prototype and user interviews with three subject-matter experts. Results showed that the VR prototype designed is useful and provides a depth of knowledge and educational value which can be used to design innovative VR training approaches.

Mechanical Design and Research of Wearable Exoskeleton Assisted Robot for Upper Limb Rehabilitation

Based on the biomechanical mechanism of human upper limb, the disadvantages of traditional rehabilitation training and the current status of upper limb rehabilitation robot, a six degree of freedom, flexible adjustment, wearable upper limb rehabilitation exoskeleton design scheme is proposed. Firstly, the mechanics of each joint of the upper limb is analyzed, and the virtual prototype design of the whole mechanical structure of the upper limb rehabilitation wearable exoskeleton is carried out by using CATIA three-dimensional software. The tooth transmission of the forearm and the upper arm single row four point contact ball bearing with internal/external rotation and the shoulder flexible passive adjustment mechanism (viscoelastic damper) are innovatively designed. Then, the joints of the upper limb rehabilitation exoskeleton are analyzed, theoretical analysis and calculation of the driving torque, the selection of the motor and gearbox of each driving joint are carried out. Finally, the whole finite element analysis of the upper limb exoskeleton is carried out. The research and experimental results showed that the design scheme of the upper limb exoskeleton assist structure is highly feasible, which can help the patients with upper limb paralysis and motor dysfunction self-rehabilitation.

Investigation of transverse vibration suppression of hoisting catenaries in mine hoists by virtual prototype and uniform design

Investigation of transverse vibration suppression of hoisting catenaries in mine hoists by virtual prototype and uniform design

Investigation of transverse vibration suppression of hoisting catenaries in mine hoists by virtual prototype and uniform design

Investigation of transverse vibration suppression of hoisting catenaries in mine hoists by virtual prototype and uniform design

DESIGNING A SHAPED SEAT-PAN CUSHION TO IMPROVE POSTURAL (DIS)COMFORT REDUCING PRESSURE DISTRIBUTION AND INCREASING CONTACT AREA AT THE INTERFACE

AbstractRemaining seated for extended periods increases the risk health issues and discomfort perception. Consequently, the seat-pan design is crucial and could be mainly influenced by two factors: pressure distribution and seat contour. For seat pan discomfort, the lower average pressure is accompanied by less discomfort. Moreover, a seat contour with a large contact area is correlated with more comfort. Thus, a shaped cushion had been accurately designed (Virtual Prototype) and realized (Physical Prototype) aiming to translate the pressure distribution due to interaction between seat and buttock in a geometric shape, suitable for the international population (including P5 females and P95 males). With this shape, the pressure should be more uniform and lower, the contact area at interface bigger, and the perceived comfort higher. Both Virtual and Physical Prototype design had been described in this paper through a repeatable and straightforward approach. Also, experiments had been performed to validate the hypothesis through a comparison with a standard flat cushion. Results showed the goal of the design had been reached: the shaped cushion scored less pressure distribution and higher contact area than the flat cushion.

V International Scientific and Practical Conference “Virtual Simulation, Prototyping and Industrial Design 2018”

V International Scientific and Practical Conference “VIRTUAL SIMULATION, PROTOTYPING AND INDUSTRIAL DESIGN – 2018” (VSPID-2018) 14-16 November, 2018 Tambov, Russian FederationThe Vth International Scientific and Practical Conference “VIRTUAL SIMULATION, PROTOTYPING AND INDUSTRIAL DESIGN – 2018” (VSPID-2018) is an annual scientific event joining experienced and young scientists dealing with research of methods and algorithms used for virtual modeling and prototyping.The VSPID-2018 Conference was focused on the presentation and discussion of research achievements and future developments in the field of virtual simulation, prototyping, and industrial design. The VSPID-2018 included the following scientific topics: (1) Virtual modeling, visualization and prototyping of technical systems; (2) Virtual modeling, visualization and prototyping of social objects; (3) Virtual modeling in geographic information systems of territories management: development and use; (4) Design and application of computer simulation models, virtual simulators and machine vision systems; (5) Creation of e-learning materials using virtual simulation and prototyping; (6) Industrial design; (7) Modern information processing; (8) Modeling of processes of teaching and management in education; and (9) Mathematical modeling of molecular systems.The issue demonstrates potential and prospective methods, algorithms, and approaches which may be profitable leverage for elaborating and applying virtual models and prototypes in design, modernization, manufacturing sectors, as well as in cultural and architectural preservation.VSPID-2018 was jointly organized by Tambov State Technical University and Tambov Region’s Government (Russia). The Organizing Committee included professors and specialists from Russian Academy of Sciences, Torino Polytechnic Institute (Italy), University of Soka (Japan), Amberg-Weiden University of Applied Sciences (Germany), University of Münster (Germany), Tambov State Technical University (Russia), Moscow State Automobile and Road Technical University (Russia), Moscow State University (Russia) and other institutions.All submitted manuscripts went through the review process. We want to thank all reviewers from Russia, China, Turkey, Australia, Poland, Spain, Iran, USA, Germany, Slovakia, Colombia, Italy, India, Korea, Canada, Ukraine, Czech Republic, for their time and highly professional comments. We deeply believe that their reviews gave opportunity to improve the scientific quality of the presented papers which may be useful for academic, scientific and industrial sectors.We would like to thank all participants for their contribution, sponsors for the financial support, and Program Committee members for their huge efforts in organization and holding of the VSPID-2018 Conference.The conference was supported by the Russian Foundation for Basic Research (project 18-07-20042/18) and Administration of the Tambov Region’s Government (project 1-NM-18).Organizing Committee:Dr. Vladimir Nemtinov, Tambov State Technical University, Tambov, RussiaEditor-in-chief of the Issue:Prof. Sergei Gorlatch, Westfaelische Wilhelms-Universität, Münster, Germany

Calculation of Parasitic Self- and Mutual-Inductances of Thin-Film Capacitors for Power Line Filters

This work presents a simple and accurate method for the calculation of both the self-inductance and the mutual inductance between thin-film capacitors, placed in close proximity in electromagnetic interference filters. From physical considerations regarding the impact of both skin and proximity effects, we approximate the currents flowing inside the capacitors at high frequencies by strip currents. This hypothesis is supported by electromagnetic simulations and measurements in this paper. On the basis of this model, we use analytical expressions to calculate both the self-inductance and the mutual inductance as a function of purely geometrical parameters such as the size of the capacitors, their orientation, and the distances between them. Because no previous impedance or network parameter measurements are required to estimate these inductances, this technique is suitable for the virtual prototyping design. We have constructed and measured several test boards to check the accuracy of the method and to identify its scope and limits. Also, in this work, we employ this technique to study the applicability to thin-film capacitors of a design strategy originally conceived to reduce the negative effects of the inductive parasitics of surface-mount capacitors. We demonstrate that this design strategy significantly improves the attenuation provided by filters with thin-film capacitors at high frequencies.

Virtual Prototyping and Parametric Design of 3D-Printed Tablets Based on the Solution of Inverse Problem.

The problem of designing tablet geometry and its internal structure that results into a specified release profile of the drug during dissolution was considered. A solution method based on parametric programming, inspired by CAD (computer-aided design) approaches currently used in other fields of engineering, was proposed and demonstrated. The solution of the forward problem using a parametric series of structural motifs was first carried out in order to generate a library of drug release profiles associated with each structural motif. The inverse problem was then solved in three steps: first, the combination of basic structural motifs whose superposition provides the closest approximation of the required drug release profile was found by a linear combination of pre-calculated release profiles. In the next step, the final tablet design was constructed and its dissolution curve found computationally. Finally, the proposed design was 3D printed and its dissolution profile was confirmed experimentally. The computational method was based on the numerical solution of drug diffusion in a boundary layer surrounding the tablet, coupled with erosion of the tablet structure encoded by the phase volume function. The tablets were 3D printed by fused deposition modelling (FDM) from filaments produced by hot-melt extrusion. It was found that the drug release profile could be effectively controlled by modifying the tablet porosity. Custom release profiles were obtained by combining multiple porosity regions in the same tablet. The computational method yielded accurate predictions of the drug release rate for both single- and multi-porosity tablets.

IV International Scientific and Practical Conference "VIRTUAL SIMULATION, PROTOTYPING AND INDUSTRIAL DESIGN 2017"

IV International Scientific and Practical Conference “VIRTUAL SIMULATION, PROTOTYPING AND INDUSTRIAL DESIGN – 2017” (VSPID-2017) 15-17 November, 2017 Tambov, RussiaThe IV International Scientific and Practical Conference “VIRTUAL SIMULATION, PROTOTYPING AND INDUSTRIAL DESIGN – 2017” (VSPID-2017) has gathered together experienced and young researchers to reveal the potential and prospects of methods, algorithms, and approaches which allow creating and applying virtual models and prototypes in design, modernization, and conversion in different manufacturing sectors, as well as in cultural and architectural preservation.The foremost aim of the VSPID-2017 was to present and discuss scientific trends, issues and achievements in the field of virtual simulation, prototyping, and industrial design. The topics of the VSPID-2017 were: (1) Virtual modeling, visualization and prototyping of technical systems; (2) Virtual modeling, visualization and prototyping of social objects; (3) virtual modeling in geographic information systems of territories management: development and use; (4) design and application of computer simulation models, virtual simulators and machine vision systems; (5) creation of e-learning materials using virtual simulation and prototyping; (6) industrial design; (7) modern information processing; and (8) modeling of processes of teaching and management in education.VSPID-2017 was jointly organized by Tambov State Technical University, Russian Fund for Basic Research, and Tambov Region's Government (Russia). The Organizing Committee was introduced by leading professors and specialists from Russian Academy of Sciences, Torino Polytechnic Institute (Italy), University of Soka (Japan), Amberg-Weiden University of Applied Sciences (Germany), University of Münster (Germany), Moscow State Automobile and Road Technical University (Russia), Tambov State Technical University (Russia), Moscow State University (Russia) and other institutions.All participants were invited to present their papers in this Issue and all submitted manuscripts went through the independent peer review process. We are very grateful to all reviewers from Russia, Italy, China, USA, Canada, Iran, Ukraine, Germany, Serbia, Portugal, Croatia, India and Egypt, for their time and highly professional comments. We deeply believe that their reviews gave opportunity to improve the scientific quality of the presented papers which may be useful for academic, scientific and industrial sectors.We would like to thank all participants for their contribution, sponsors for the financial support, and Program Committee members for their huge efforts in organization and holding of the VSPID-2017 Conference.Organizing Committee:Dr. Vladimir Nemtinov,Tambov State Technical University,Tambov, RussiaEditor-in-chief of the Issue:Prof. Sergei Gorlatch,Westfälische Wilhelms-Universität,Münster, Germany

Design and realization of virtual prototype of shotcrete robot based on OpenGL

This paper introduces a novel design method of virtual prototype based on OpenGL. This method can be applied to describe the principle of work and show the operating condition of the robot, plays a significant role in promoting structural design and system optimization of the robot. And in this way with CAD modeling and VC++ programming techniques developed a kind of virtual prototype system of PJR-2X shotcrete robot, solved the issue of the establishment of the complex model based on OpenGL

X3D-Based Robot Kinematics Simulation

This paper introduces the related technology in the design of robot virtual prototype. Research is mainly focused on the virtual prototype of the mechanism design, kinematics simulation, control logic and main problems of prototype performance analysis, and try to use X3D technology to realize virtual prototype model of the robot. It is verifies the effectiveness of X3D technology in robot virtual prototype design. The key to realize the robot mechanism design, kinematics simulation, several aspects such as the logic control. But the design of the robot system is a comprehensive mechanical mechanisms, kinematics, dynamics, graphics, artificial intelligence, concurrent engineering, and simulation project of multiple disciplines such as advanced manufacturing technology. The design of the robot system includes dynamic analysis, static analysis, speed, trajectory control, sensor fusion, artificial intelligence analysis, and other technology. The comprehensive realization of multidisciplinary various restrictive factors is to achieve a feasible, effective and ideal robot virtual prototype model of the key problems. Further use X3D technology to add various related techniques to achieve X3D virtual prototype model, the design of robot system, the development of industrial robot has important practical significance.

X3D-based Virtual Prototype Robot Mechanism Simulation

This paper mainly studies the goal when using standard X3D robot virtual prototype technology research, design, and kinematics simulation of the body. In the study, the virtual prototype model should be able to satisfy the basic research and design of industrial robot kinematics. Validation X3D technology in the design of virtual prototype of robots can have good effective action. The design of industrial robot virtualization is positive. This work includes X3D technology based on the model, the robot kinematics mathematic model of virtual prototype, and the use of this robot kinematics model using the model analysis of the performance parameters of the robot virtual prototype. This paper solves X3D using the virtual prototype technology robot run to learn some key problems of the simulation of the virtual prototype of robot X3D expression methods (robot virtual body expression, organization, the assembly, and the constraint X3D research). Based on the virtual prototype, X3D is inverse kinematics calculation model.

A Dynamic Simulation Design of a Ladder Fire Truck Based on ADAMS

This paper completed the virtual prototype design for a ladder fire truck in ADAMS.After add the joints and motion functions,a dynamic simulation and analysis to the virtual prototype had been carried out.It approved the ladder fire truck could achieve the intended motion with comparatively steady space.The simulation provided a theoretical basis for the further design,which is a reference for the next imporving design.

New Intelligent and Efficient Pesticide Sprayers in Mechanical Manufacturing Engineering

In view of the traditional low mechanization,degree of automation and lack of humanization etc, a n-ew intelligent and efficient pesticide spraying machine can be created to add pesticide to cotton.Completed parametric design of the device's virtual prototype by SolidWorks,and we apply virtual prototyping technologyto key parts to go on dynamics simulation analysis,to verify the reasonableness of this mechanism design and correctness of the function to achieve.

Applied-Information Technology with Design and Research on Innovative DIY Training Platform of Learners Based on Mechanical Properties

Since the open lab cannot improve the students’ practical ability in a good manner, and the full-featured laboratory equipment has a high cost, this paper thus designs a students’ innovative DIY training platform that quickly assists to model the KT board, in order to enhance the students’ practical skills and thinking abilities, and improve the quality of experiment teaching. The platform solves the existing DIY modeling’s issues of great difficulty in manual processing, low precision and long cycle. Based on the design platform of SolidWorks, this paper completes the parametric design of the device virtual prototype, adopts the virtual prototyping technology to make dynamics simulation analysis towards the critical parts, and verifies the rationality of this mechanism design and correctness of function implementation.

Study on Elevator Drive System Dynamics Simulation of Rail Transport Conveyer

Rail transport conveyer is special transportation equipment that is widely used in the field of metallurgical industry. It is the key to ensure equipment operation efficiency on a production site. But the low lift system efficiency and poor reliability are difficult technical problems in the enterprise. In this case, rail transport conveyer uses the worm gear and screw nut lifting mechanism. The project carries on rail vehicle lifting system modeling and dynamic simulation study through Solid Edge ST5 and ADAMS, combined with simulation technology, virtual prototype design. Research purpose is in order to match the coefficient of friction between the screw and screw nut better, and to match different speed ratio for the drive gear pair and the lifting mechanism being in empty back to travel and work schedule. Another aim is to match the speed of the lifting speed and walking speed, and to reduce the error probability. Results show that the motor can get better speed matching relation with lifting mechanism through research, further optimizing the structure of lifting system parameters. Through the analysis and structure optimization, we can improve the reliability of rail transport vehicle lift system, and implement efficient fast for copper anode lifting and positioning precision. The ultimate goal is to achieve vertical hanging in electrolytic cell anode plate, and to make electrolytic operation to achieve the best state.

Workload-oriented Flight Scenario for Evaluation of Pilot-aircraft Interaction

Flight scenarios for assessment of airworthiness and evaluation of aircraft are imperative for the aircraft industry. A flight scenario developing method which takes both aircraft airworthiness and evaluation into consideration was proposed in this paper. Four aspects of techniques, including configuration of dynamical relations among flight environment, weather conditions and aircraft considerations, decomposition of flight crew tasks, mapping of workload functions and factors onto operational tasks, and specification of window events and data items, were provided and integrated based on methodological guide. The method adopted an automated planning and scheduling mechanism which facilitates recurrence of flight conditions and detection of working status of pilot, so that flight scenarios developed could be utilized in various flight tests for fulfillment of flight tasks, implementation of workload measurement, and establishment of minimum flight crew; hence ergonomic evaluation of pilot-aircraft interaction could be carried out which are useful for assessment of airworthiness, analysis of human factors, human-centered design of aircraft, virtual prototyping and engineering of aircraft.

Research on Transmission Principle of Gearless Reducer

Propose cylindrical cam lateral transmission mechanism for the first time, define the agency's three specific types. Design gearless reducer type A, B and C for construction elevator by the application of the agency to reducer industry. Conduct physical prototype processing manufacture based on cylindrical cam lateral transmission theory and virtual prototype design of gearless reducer. By contrast processing and experimental tests to determine that the theory of cylindrical cam lateral transmission mechanism is feasible. Gearless reducer have the advantage of high efficiency and energy saving, low cost, small volume, light weight, saving raw materials resources.