Papers by Keyword: Adam

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Authors: Hai Yang Zhao, Min Qiang Xu, Jin Dong Wang, Gui Juan Chen
Abstract: The dynamic behavior of a reciprocating compressor transmission mechanism with joint clearance is studied in this paper. A transmission mechanism virtual prototype model is built under software ADAMS. Revolute joint between connecting rod and crosshead pin is modeled with clearance by contact model based on the so called Impact-function, and four processes of cylinder pressure load is simulated by the IF function. Cylinder pressure load, amplitude of joint clearance, crank speed and flexibility of connecting rod is taken as influence factors. Four different cases were simulated. Joint contact forces, accelerations of compressor block and journal centre path are used to analyze the dynamic behavior. The presented results show that these factors play a significant role of dynamic behavior of mechanisms.
641
Authors: Ji Yan Wang, Xu Fei Si, Rong Chun Guo
Abstract: For industrial robot manipulator system, PD control theory is extensively used in the dynamic characteristics controlling. A new modified feed-forward compensation PD controller is introduced to optimize the stability and convergence of traditional PD controller for industrial manipulator system. By the co-simulation on ADAMS and Matlab/ Simulink, the paper designs a modified feed-forward compensation PD controller based on two-link manipulator model and completes track control trial. Through result comparison and analysis, the superiority of the new modified PD controller for two-link manipulator is verified.
1245
Authors: Gang Lian Zhao, Yi Jiang, Yu Jun Chen, Yan Li Ma
Abstract: A new method of integrate simulation for the kinematics and dynamics analysis of complex mechanical system is presented in this paper. This platform of the method is based on Visual Studio 2005, MD ADAMS( Automatic Dynamic Analysis of Mechanical System) R3 and Pro/Engineer Wildfire 4.0. The experimental model is built with Pro/E, and then some functions of Pro/Toolkit are used to export file of parasolid format and coordinates of some specified Datum Points. Finally, the coordinates of these Datum Points are written into a CMD file (Commands file of ADAMS). A slider-crank mechanism is used as a numerical example to demonstrate the application of the method. It is shown that this approach is a much easier, faster than usual manual method especially for complex mechanical system which has a lot of Marker Points and constraints.
2065
Authors: Ji Yan Wang, Yu Xia Zhuang
Abstract: For industrial robot manipulator system, PD control theory is extensively used in the dynamic characteristics controlling. A PD robust controller is introduced to optimize the stability and convergence of traditional PD controller and avoid excess initial driving torque for two-link industrial manipulator system. By the co-simulation on ADAMS and Matlab/ Simulink, the paper designs a PD robust controller under given upper bound disturbance and completes track control and driving torque trial. Through result comparison and analysis, the superiority of the PD robust controller for two-link manipulator is verified.
1540
Authors: Xing Han, Chang Li, Xiao Gang Ma
Abstract: The open arc welding robots have been used widely nowadays; however, the elastic deformations of every inner link inevitably affect the welding quality. In this paper, it proposes an effective method of service reliability assessment for the rigidity-flexibility coupling open arc welding robot. Firstly, a parametric virtual model of the robot is built in ADAMS/View-AutoFlex module. Secondly, the stochastic errors generated in the working process are simulated by a program created from pseudo-random numbers which have been written by multiplicative congruence method. Lastly, Monte Carlo sampling calculation is implemented for the virtual model, and large sample data of the dynamic characteristics in welding process are obtained and used to calculate the service reliability of the welding robot. This method includes simplicity (no need to solve complex mathematic model) and high accuracy which make it highly promising for application in mechanism design.
780
Authors: Qiang Wang
Abstract: Build a whole car model with ADAMS/Car, a simulation analysis software of mechanical kinetics to perform simulation experiment of car steering stability. Design and carry out experiment of snaking motion and turning braking. Prove the correctness of simulation model through analysis of the findings of experiment and comparison of them with the findings of real car experiment.
758
Authors: Qin Man Fan
Abstract: Steering system directly determines the tractor steering characteristics. It has great influence on the driving comfort of a tractor and the life of the tire, etc. Based on the platform of the virtual prototype software ADAMS, the virtual prototype model of tractor steering system and the motion simulation were established. The parameters such as the tractor steering angle displacement were measured and the steering performance of tractor was analyzed. The model and simulation method this article used has significant references on the performance analysis of other vehicle steering system.
880
Authors: Jian Xin Wu, Xiang Dong Qi, Yan Wang, Di Wu
Abstract: Electromechanical coupling dynamic of parallel manipulator is a multi-input, multi-output, non linearity, tight coupling, and complex electromechanical system, but now there isn’t have a mature model of Parallel manipulator dynamic and methods of Simulation calculation. In this following passage, aiming at 3PUU parallel manipulator, we establish dynamic model In ADAMS software; design the servo controller in MATLAB and setting to the control parameters. The co-simulation results computer simulation validate the rationality of modeling of electromechanical coupling dynamics and show the optimal control of the mechanism’s displacement and torque of the servomotor by controller.
2125
Authors: Ji Hui Liang, Li Li Xin
Abstract: It uses ADAMS software to establish the double wishbone suspension kinematics analysis model to analyze the rules of front wheel alignment parameter changing with wheel run-out and evaluate the rationality of the suspension system data. For the problem of too much side slippage and serious abrasion of front wheel of suspension, it carries out optimization computing for the suspension based on the target of minimizing the front wheel side slippage during wheel run-out. And the optimization result improves the suspension system performance in a certain extent.
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Authors: Ying Wang
Abstract: In the transmission system of drive axle, the gears' transmission performance of final drive and differential is the key to transmission system. Based on Automatic Dynamic Analysis of Mechanical System (ADAMS), the virtual gear meshing prototype of final drive and differential were established. Based on the Hertz elasticity impact theory, the contact forces between gears were built. The real-time dynamic simulation of gear meshing was achieved. The gears’ transmission of final drive and differential in drive axle was simulated under limit conditions by imposing different torque in driving gear of final drive and differential gears. The curves of meshing force and angular speed of differential gears and driving gears of final drive are obtained. The theoretical reference is provided to the study of the dynamic characteristics in gear transmission system.
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Showing 1 to 10 of 319 Paper Titles