外文翻译完整版 毕业设计.doc

Robot RV reducer virtual prototype simulation and Analysis Abstract Based on Multi-body Dynamics theory, paper established the Virtual prototype of Robert RV reducer.In the model building process, based on the working principle of RV reducer, define the Meshing relationship between the three planetary gears and the driving wheel as high-vice contact, define the three planetary gears stably solid with the three Crankshafts, which formed three parallel Double-crank mechanism, define the meshing relationship between the Cycloid gear teeth and needles also as high-vice contact, Define the Kinematic pair between the others Components as revolve pair. After formulating the Virtual Prototype, Solved the dynamical equation by New mark method. Simulation results show that RV reducer Drive smoothly, has Stable Dynamic performance, and ideally for Precision Transmission. Keywords : RV reducer; Virtual prototype; Dynamic simulation 1、Introduction RV Transmission has many advantages, such as large transmission ratio, small size, high carrying capacity and high transmission efficiency, which attracted widespread attention at home and abroad and used wildly at industries field. As shown in figure 1, the RV reducer is complex and difficult for structure design and for Kinematics, dynamics analysis. Reference [1] mainly introduced the virtual assembly and dynamics characteristics research for planetary reducer; focus on the molding process,solving methods and result analysis. Reference [2] focus on dynamics simulation of planetary cycloid reducer body, established a virtual prototype model for Ordinary cycloid reducer with UG and ADAMS software, got the kinematics, dynamics simulation results, solved the force and constraint issues of key components. Reference [3] applied inertia plate to simulate working load, established the dynamical model for RV-6A II with 5 DOF, then by the dynamic characteristic test to verify the Correctness of the model. Reference [5] established a 24 DOF d