Matching of Suspension Damping and Air Spring Based on Multi-Body Dynamic Model

By using multi-body dynamics simulation software SIMPACK, the paper completed full vehicle modeling of bus air suspension. In four typical working conditions, body vertical acceleration, suspension working space and dynamic tire load were selected as performance indexes to analyze the matching of suspension damping and air spring. On the basis of comparison of simulation data, a suitable damping was selected for a good matching with air spring in corresponding condition and the performance of the suspension system was improved.