行程敏感式液压互联悬架动力学性能分析

Dynamic performance analysis of stroke-sensitive hydraulic interconnected suspension

基于传统抗侧倾液压互联悬架构型,通过在液压缸上设计行程敏感槽,利用活塞位置在槽内的往复运动,实现阻尼可调的特性。采用MATLAB/Simulink搭建了此结构液压互联悬架的整车模型,最后利用仿真模型进行蛇形运动、双移线运动和随机路面激励试验的仿真分析。结果表明:与传统抗侧倾液压互联悬架对比,行程敏感式液压互联悬架能有效改善汽车行驶时的平顺性。

Based on the traditional anti-roll hydraulic interconnected suspension system,by designing a stroke-sensitive groove on the hydraulic cylinder,the reciprocating movement of the piston position in the groove was used to realize adjustable damping.MATLAB/Simulnik was used to establish a complete vehicle model of the hydraulic interconnected suspension with this structure,and the accuracy of the model was verified through the stability experiment.Finally,the simulation model was used to carry out the simulation analysis of serpentine motion,double-line shifting movement and the random road excitation test.The results showed that,compared with the traditional anti-roll hydraulic interconnected suspension,the stroke-sensitive hydraulic interconnected suspension could effectively improve the ride comfort of the car.