Multi-Rigid-Body Modeling and Simulation Analysis for Tracked Vehicle

Based on vehicle-terramechanics theory for analyzing the typical track-soil interaction and its application in RecurDyn/Track(LM) firstly,two typical kinds of soil mechanic parameters are defined,and with which a track-soil interaction model under cycle-loading based on Bekker theory and Janosi Hanamoto theory is established.Meanwhile the contact mechanical models between parts of the track system are discussed,the contact parameters and restrictions are also defined,which form the multi-rigid-body tracked vehicle model exactly and reasonably.Then through defining motion functions,the simulation analysis of tracked vehicle steering on the typical ground is performed.The simulation results are compatible with the theoretical analysis and the facts,which provide a theoretical basis and an effective solution for further researches.