Research On Co-simulation Of Electron Hydraulic Servo Control Six Degree Of Freedom Motion Platform

6-DOF motion platform essentially is a parallel motion platform, which is invented by a German scientist named Stewart in 1965, therefore, it is also called the stewart platform. In recent years, it has become one of a hot research at home and abroad and an important criterion to measure the level of a national industrial manufacturing. It has multi-degree of freedom, high rigid, high precision, easy control, modular design and production and many other advantages. Applications has been extended to parallel machine, parallel robot, underwater and aerial docking platform, various driving simulator, recreational settings and medical equipment and so on.The implement of this article is combined with "211 construct Project " research projects of Tai Yuan University of Technology, This article discusses the international research trend, development history and future, applications, research method and significance of the parallel motion platform, presents a design method of mechanical bodies and hydraulic servo system of the 6-DOF parallel motion platform, the main contents of the full text include the following components: (1)Analysis of parallel mechanism, including mechanism analysis (degree of freedom analysis, mechanism structure analysis); kinematics analysis (the positive and inverse solution of position, velocity ,acceleration and Jacobian); mechanism dynamics analysis; complete workspace and drive mode analysis of the motion platform.(2) Under the existing conditions, calculate and design the mechanical structure of the 6-DOF motion platform. In this article, the piston and piston rod diameter and the stroke of hydraulic cylinder is given, ensuring the motion platform has a certain workspace, calculate and design the size of structure of the motion platform, including the hinge point circumcircle diameter of the upper and lower platform, the location of the hinge point, and select the type and size of hinge depending on the most force of the motion platform can bear.(3) Modeling the parts of the motion platform in three-dimensional with PROE software and assembly platform solid model completely. Import the platform model into ADAMS through an interface software, and define the constraint, carry on the dynamic simulation finally, modify and improve the mechanical mechanism of the platform.(4) Calculate and design the hydraulic servo system of the platform, determine the type and size of various hydraulic components, and analyze the whole servo control system; Construct the hydraulic servo system circuit of the platform in AMESim Software; carry on a co-simulation analysis in ADAMS and AMESim finally. (5) Finally, summarize and point out the further research needs to be done for the motion platform.