单气室油气悬架平顺性仿真分析  

Simulation and anlysis on ride comfort characteristics of hydro-penumatic suspension with single gas cell

作　　者：鲍卫宁[1] 

机构地区：[1]江汉大学机电与建筑工程学院,湖北武汉430056

出　　处：《机械设计》2014年第6期83-87,共5页Journal of Machine Design

基　　金：江汉大学科研启动基金资助项目(2012028);湖北省科技厅资助项目(2007AA101C14);湖北省教育厅资助项目(D200634002)

摘　　要：对一种单气室油气悬架的结构与工作原理进行了描述,结合其工作原理推导了阻尼特性的数学模型,以此为理论基础利用AMESim软件搭建了油气悬架的仿真模型,并进行了油气悬架阻尼特性的仿真试验,结合台架试验数据验证了仿真模型的正确性,分析了阻尼孔、单向阀系参数对油气悬架阻尼特性的影响。然后,进一步搭建了油气悬架二自自度模型,以车身加速度、悬架动行程、车轮动位移为指标考察了油气悬架的平顺性能,与传统悬架系统性能进行了对比。研究结果表明:该单气室油气悬架可以较好地提高车辆行驶平顺性。A hydro-penumatic suspension with single gas cell was presented, and the mathematical model of the hydro-penumat- ic suspension was deduced. Then, the simulation model of hydro- penumatic suspension was finished with AMESim, and the indica- tior diagram of hydro-penumatie suspension was drawn. A bench test was carried out, the results showed that the AMESim model of hydro-penumatic suspension was correct, and the influence of damping hole and check valve were analyzed. On this basis, a two degree freedom suspension model was used to calculate vehicle body acceleration, dynamic suspension deflection and tire dynamic displacement. Then, the results were compared with those of tradi- tional suspension system. The results showed that the hydro-pneu- matic suspension with single chamber can improve vehicle riding comfort.

关 键 词：油气悬架 阻尼特性 平顺性 车辆 

分 类 号：U463.334.3[机械工程—车辆工程]