摘要
根据油气悬架的2种构型分类,说明集成式油气悬架的优势和构造。基于基本假设,通过分析流量与运动量关系、阻尼孔压力与流量关系、管路压力与流量关系和各腔气体压力,推导出集成式油气悬架动态力的显式数学表达。采用滤波白噪声法描述车轮随机路面激励。应用车身和车轮两自由度模型建立集成式油气悬架车辆模型,确定振动响应量。在常用的B级路面和车速60 km/h条件下,对某集成式油气悬架车辆的振动进行仿真。结果表明:所建立的集成式油气悬架及其车辆模型用于车辆的振动仿真是有效的、可行的。
According to the two construction classification of hydro-pneumatic suspension,the advantages and structure of integrated hydro-pneumatic suspension were explained.Based on the basic assumption,the explicit mathematical expression of the dynamic force of the integrated hydro-pneumatic suspension was derived through the analysis of the relationship between the flow and the movement,the relationship between the damping hole pressure and the flow,the relationship between the pipeline pressure and the flow,and the gas pressure of each cavity.The filtering white noise method was used to describe road excitation of wheel.The integrated hydro-pneumatic suspension vehicle model was established by using the two degree of freedom model of vehicle body and wheel,and the vibration response variables were determined.The vibration of an integrated hydro-pneumatic suspension vehicle was simulated under the condition of B grade road surface and speed of 60 km/h.The results show that the integrated hydro-pneumatic suspension model and its vehicle model are effective and feasible for the simulation of vehicle vibration.
作者
张涛
毕祥如
郑玲玲
李杰
ZHANG Tao;BI Xiangru;ZHENG Lingling;LI Jie(College of Automotive Engineering,Liaoning Open University,Shenyang Liaoning 110161,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun Jilin 130025,China)
出处
《机床与液压》
北大核心
2021年第20期154-158,共5页
Machine Tool & Hydraulics
基金
省校共建项目(SXGJSF2017-2-1-1)
汽车仿真与控制国家重点实验室开放基金项目(20180217)
国家自然科学基金国际(地区)合作与交流重点项目(61520106008)。
关键词
集成式油气悬架
车辆振动
仿真分析
Integrated hydro pneumatic suspension
Vehicle vibration
Simulation analysis
