车辆悬架空气弹簧通用模型的研究  

Research on General Simulation Model of Airspring in Vehicle Suspension

作　　者：顾信忠 GU Xinzhong(School of Automotive Engineering,Changshu Institute of Technology,Changshu 215500,China)

机构地区：[1]常熟理工学院汽车工程学院,江苏常熟215500

出　　处：《常熟理工学院学报》2025年第2期120-124,共5页Journal of Changshu Institute of Technology

摘　　要：本文旨在准确、快速地得到车辆悬架空气弹簧的静态和动态弹性特性.首先,基于连续性方程、气体状态方程和热力学第一定律,建立了空气弹簧的通用仿真模型;然后,根据实验结果得到了空气弹簧容积和有效面积的计算式并建立相应仿真模块.仿真结果显示膜式空气弹簧的静弹性特性以及0.1 Hz、0.5 Hz和1 Hz激励下的迟滞特性与实验结果吻合良好;γ=1.0和γ=1.4时囊式空气弹簧的计算静刚度与实验值的相对误差分别为-8.0%和-4.8%.研究表明,控制方程能够有效描述空气弹簧内部气体的状态;建立的仿真模型能够实现对空气弹簧的静态、动态特性进行数值模拟;仿真模型具有良好的通用性,可为车辆悬架系统的设计提供支持.The main objective of this research is to determine the airspring characteristics accurately and efficiently.Firstly,a general simulation model of airspring used in vehicle suspension system is established based on the mathematical model.The functions of volume and effective area for the airspring modeling are obtained according to the experimental results.The simulated static stiffness and hysteresis characteristics of the rolling lobe airspring agree well with the experimental results.In the cases of γ=1.0 and γ=1.4,the relative errors between the calculated and measured static stiffness of the bellow type airspring are-8.0% and-4.8%,respectively.The results of the study show that the provided governing equations can describe the state of the gas inside the airsprings effectively,and the numerical model can be used to evaluate the static and dynamic characteristics of the airsprings,hence providing support for the suspension system design.

关 键 词：悬架空气弹簧 通用仿真模型 静刚度 迟滞特性 

分 类 号：U461.1[机械工程—车辆工程]