基于软土路面的越野车辆平顺性研究

he virtual prototype model of an off-road vehicle is built based on ADAMS software and the user-written subroutine for calculating interaction force between elastic tire and soft soil is set up according to the load-sinkage theory. The non-linear contact simulation between elastic tire and soft soil was implemented successfully by using ADAMS software. By changing the soil related parameters, off-road vehicle dynamic was simulated on the random input running test. The simulation result shows that the body acceleration，suspension dynamic deformation and tire dynamic load of the vehicle all changed and the displacement of body increases obviously as terrain deformation increases.