基于多体理论的履带车辆半主动悬挂仿真研究  

Simulation Research of Semi-Active Suspension System of Tracked Vehicles Based on Multi-Body Dynamics Theory

作　　者：尹忠俊[1] 陈兵[1] 顾亮[2] 黄华[2] 

机构地区：[1]北京科技大学机械学院,北京100083 [2]北京理工大学机械与车辆工程学院,北京100081

出　　处：《系统仿真学报》2006年第2期286-289,305,共5页Journal of System Simulation

基　　金：国防基础科研基金资助(K1404060612)

摘　　要：在多轮车辆悬挂系统线性振动模型基础上,证明了悬挂最优阻尼比的存在,提出了统计意义上的最优阻尼控制策略,此即为履带车辆悬挂半主动控制的理论基础。通过基于多体动力学理论的虚拟样机方法对某型履带车辆整车悬挂系统进行了仿真研究,结合“机械系统+控制系统”联合仿真技术,对比了该车分别采用被动悬挂和半主动悬挂时的动力学特性,得出了该履带车辆采用半主动悬挂可显著降低车辆振动加速度,提高车辆乘坐舒适性的结论。Optimal Damping Ratio （OPR） of a suspension system was existed and proved by linear vibration model on suspension system of multi-wheel vehicle. The theory of semi-active suspension was established by the OPR control policy of statistic meaning. Simulation of suspension dynamics of a full tracked vehicle was researched using visual mechanics method based on multi-body dynamics theory with the co-simulation technology of mechanical system and control system. Dynamics characteristic comparison of the tracked vehicle equipped with passive and semi-active suspension was done by the co-simulation method Finally, a conclusion is drawn from the simulation results that ride-comfort of tracked vehicles can be improved and vibration acceleration can be decreased obviously if the OPR control semi-active suspension is used.

关 键 词：履带车辆 多体动力学 半主动悬挂 最优阻尼控制 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]