Papers by Keyword: Virtual Prototyping

Abstract: In this paper, virtual prototype modeling, simulation and optimization of a 3 DOF SCARA robot as an example of robot manipulators, based on using software packages are presented. The softwares, Solidworks, Matlab and specially its module, Simmechanics, are used for robot modeling and thenMulti-Variable control process is performed with PID controller for controlling the robot. After modeling error RMS is defined as optimization objective function and the controller is optimized by Genetic algorithm. In this way, online kinematics solution in Simmechanics is introduced to avoid mathematical modeling of inverse kinematics problem. The strong point of this work is to facilitate modeling of complex mechatronical systems for engineers and virtual motion visualization of the mechanisms helps the engineers to have better understanding of systems behavior. Using exact numeric prototype of the robot in optimization problem, make it possible to use optimized controller for the actual robot.

Abstract: Free Space Optics (FSO) communication is a technology widely used today. It involves transmission of data from a transmitter to a receiver. In order to achieve successful data transmission, a continuous alignment between the transmitter and receiver telescope is needed. If not, misalignment will happen due to certain factors. Vibration at the transmitter or the receiver is one of the factors that contribute to misalignment. In this work, active vibration isolation (AVI) system is designed and fabricated in order to improve the performance of the transmitter and receiver in an FSO link. First, a virtual prototype is designed. Then a real prototype is fabricated to implement AVI. The result after applying a controller to the AVI system shows 33.1% reduction in amplitude of displacement of the top plate, in other words reduction in amplitude of vibration.

Abstract: Modeling hydraulic support used in deeply inclined top coal caving face by using virtual prototyping technology and analyzing support structural parts using COSMOS/Works, which is inner set in the Solidworks software. The result mainly reflects hydraulic support material stress characteristics, and therefore provides direction and reference for design improvement.

Abstract: This paper put forward a systematic design method based on virtual prototyping technology to simulate lifting platform of jacking system in jack-up offshore platform. After the main parameters of lifting platform in jack-up offshore platform were introduced, the 800T offshore platform modeling techniques were put forward, such as rigid body modeling techniques, flexible body modeling techniques, modal analysis techniques and kinematics analysis. The dynamics analysis was present with the simulation results, which demonstrates that this method is obviously helpful to get more accurate simulation results to verify the rationality of lifting platform in jack-up offshore platform.

Abstract: This paper proposed a virtual prototyping-based modeling method of standard parts library. After the design requirement analysis, the modeling approach was put forward. Then the parameter-driven method and its use method were then proposed. The classes object organization relationship was identified step by step. The fastening feature tree structure logical relationship was present as an example, which demonstrates that this method is obviously helpful to product design.

Abstract: The barrel life is decided by explosive payload, tempreture, firing interval, ammunition type and other factors. Thus the zone charge’s auto-recognition is the first question to realize the automatic prediction technology of the barrel life. The zone charge’s recognition technology was proposed based on BP Network. The theory support could be provided by the technology to realize the zone charge’s auto-recognition.

Abstract: Obstacle robot crawler is a very complex mechanical products. Crawler robot obstacle for traditional development pattern of the development cycle there is a long, complicated process, development costs are too high, difficult issues such as performance testing, this twin-tracked to the more impaired actual robot context of the study, the application of simulation technology robot design and development research. Use of 3D modeling software Pro / E and two-body dynamics simulation software to create more obstacles the robot tracked the virtual prototype model, the virtual prototype model based on a variety of simulation experiments, and the test results analysis.

Abstract: The virtual prototyping model of large erecting system is established by means of ADAMS and AMESim software. Based on the theory of multi-rigid body dynamic, the topology description of erecting system is given. Dynamics analysis model of large erecting system is built in ADAMS software, and mechanics character is given through the analysis of the erecting system. The simulation model of hydraulic system is built using AMESim software. Collaborative simulation based on the interfaces of ADAMS and AMESim is discussed, and the dynamic characteristic of the erecting system is simulated based on the interfaces of ADAMS and AMESim. Some simulation results are given to demonstrate the validity of the proposed model. This method provides a new approach for the modeling and simulation of electro-mechanical systems.

Abstract: In order to improve the quality of product design, reduce the cost, shorten the development cycle, virtual prototyping technology is used in the process of on the three point support type clutch press mechanism. The design scheme is rapid implemented through establishing three-dimensional modeling, assembly and disassembly, adjustment mechanism simulation, motion simulation of mechanism. So that the physical, mechanical performance of mechanism is analysised, simulated, predicted. Through the virtual operation simulation, early detection of defects in design, to realize optimization design.

Abstract: A new compaction powder metallurgy equipment integrated with the mould and the frame is introduced to substitute the traditional powder metallurgy equipment (P/M). During the design and manufacture, finite element method is used to analyze the motion of the equipment. The Lagrange equation and modal synthesis method for flexible body are constructed, and then the cooperative simulation method using ADAMS and MARC is present for solving flexible multibody dynamics of flexible body. Results show that the design of the structure of the powder metallurgy equipment is feasible and the low cost and the simple structure are its merits compared to the traditional equipment.