汽车减振器外特性仿真与试验分析

PDF(1681 KB)

振动与冲击 ›› 2011, Vol. 30 ›› Issue (8) : 92-96.

论文

汽车减振器外特性仿真与试验分析

徐中明1,2; 李仕生1; 张志飞1; 杨建国1; 李传兵1

作者信息 +

External Characteristics Simulation and Experiment analysis of Automotive Shock Absorbers

XU Zhong-ming1,2 ; LI Shi-sheng1; ZHANG Zhi-fei1; YANG Jian-guo1; Li Chuan-bin1

Author information +

文章历史 +

摘要

基于减振器的工作原理、内部结构和阀系特性，利用环形薄板阀片变形微分方程以及内外径处的边界条件推导环形阀片受均布载荷作用时的挠曲变形解析式，根据流体力学缝隙流动、管嘴流动理论、薄壁小孔节流理论，建立了双筒液压减振器的详细数学模型。采用MATLAB软件进行仿真研究，计算结果与试验数据符合较好。同时用该模型分析减振器补偿阀及流通阀对减振器阻尼力的影响规律及敏感程度，得出的结论可以为减振器的设计和性能预测提供参考。

Abstract

Based on the working principle, the internal configuration, and the valve system behavior of the shock absorber, the equation for annular laminar deformation under a uniform load is deduced by using a deflection differential equation for throttle slice and boundary condition, according to hydrodynamics gap flow, nozzle flow and small orifice throttle theory, mathematical model of working procedure is established. The Matlab software was used to simulate a detailed model of an automotive shock absorber, the calculated results agree well with the test data. In particular, the effects and sensitivity degrees of the suction valve and intake valve on the shock absorber damping were analyzed by the model, and the obtained results provide a reference for the shock absorber design and performance prediction.

导出引用

徐中明;李仕生;张志飞;杨建国;李传兵. 汽车减振器外特性仿真与试验分析[J]. 振动与冲击, 2011, 30(8): 92-96

XU Zhong-ming;;LI Shi-sheng;ZHANG Zhi-fei;YANG Jian-guo;Li Chuan-bin. External Characteristics Simulation and Experiment analysis of Automotive Shock Absorbers[J]. Journal of Vibration and Shock, 2011, 30(8): 92-96