生命探测履带车过沟性能的仿真分析
Simulation and analysis of pit-crossing performance of life detection tracked vehicle

通过运用多体动力学分析软件 RecurDyn对履带车的过沟工况进行动力学仿真,分析履带车过沟不同阶段的运动状态,提出速率比来衡量履带车的过沟性能,并以此研究履带车的重心位置等因素对其过沟性能的影响,为过沟性能高的履带车设计提供理论依据。研究结果表明:采用速率比能较好地衡量履带车结构对过沟性能的影响;重心位置相对于几何中心靠前、靠下均有利于过沟性能的提升。
By means of multi-body dynamics analysis software RecurDyn, some simulation analyses of pit-crossing of tracked vehicle were performed. The different movement stage of pit-crossing of tracked vehicles were then analyzed .The velocity ratio was proposed to evaluate the pit-crossing performance of tracked vehicle. Also, the gravity position which affects pit-crossing performance of tracked vehicle were studied to obtain some theoretical knowledge for design of tracked vehicle. The results show that the velocity ratio has a good effect to evaluate the influence of structure of tracked vehicle on pit-crossing performance, and the gravity position of tracked vehicle should be lower and further than geometric center in order to improve pit-crossing performance