| two-link rear suspension is not only low-cost but comfortable and safe, which is crucial to come out ahead in the face of fierce competition.According to the theory of Multi-Body System Dynamics and the detailed analysis of the two-link rear suspension structure, develop the generic template of the two-link rear suspension in ADAMS/CAR, base on this template we build the subsystem of two-link rear suspension, and make the kinematics and dynamics simulation analysis to the two-link rear suspension. Build the full vehicle modeling, according to the national controllability and stability test for automobiles test procedure, six simulation tests were made.The whole article include five chapters:Chapter oneIn chapter one, we introduce the development status quo of vehicle system dynamic modeling and make a brief description of Multi-Body System Dynamics, virtual prototyping simulation technology, software ADAMS. At the end of this chapter, we describe the research content and significance.Chapter twoThe two-link rear suspension is not only low-cost but comfortable and safe, which is deserved to study. This chapter analysis the two-link rear suspension structure in detail. describe the whole process of develop of two-link rearsuspension gengric template, including the establishment of hardpoint and construction frame, general part and mount part, geometry, joint and bushing, force, parameter, input communicator and output communicator, at last ,establish the two-link rear suspension gengeric template.Chapter threeThe research on suspension kinematics were about the parameters, such as wheel orientation, body lifting and diving that related to suspension which were caused by the relative movement of vehicle body and wheels. So, in order to research on the kinematics of suspension, a kind of movement was imported to the suspension system, then the output results were researched and evaluated. The research on suspension dynamics were about wheel orientation, etc. which were caused by the lateral or longitudinal force or torque acting on the suspension system. So, the way to research and evaluate the suspension dynamics was to import force or torque to the suspension system. So the kinematics and dynamics simulation analysis were made to the two-link rear suspension. These simulations were: kinematics analysis caused by the parallel jump of the left and right wheels; kinematics analysis caused by the rolling movement of the vehicle body; dynamics analysis caused by the external forces.Chapter fourAccording to the requirements of the current standards GB/T6323.1-94 ~GB/6323.6-94 of our nation's for vehicle controllability and stability test, we set up venues environmental needed by the simulation and carry out simulation and analysis for vehicle handling stability such as pylon course slalom test, steering wheel angle step input test, steering wheel angle pulse input test, returnability test, steady static circular test and steering efforts test.Chapter fiveChapter five is the summarization of the article, depicting the main works and researching result. |
PDF Full Text Request