具有双向作用筒式减振器的汽车行驶平顺性分析  

Analysis of Ride Comfort of Vehicles with the Double Adjustable Shock Absorber

作　　者：姚黎明[1] 陆文华[1] 沙玲[1] 秦静[1] 

机构地区：[1]上海工程技术大学机械工程学院,上海200336

出　　处：《机床与液压》2004年第12期39-40,64,共3页Machine Tool & Hydraulics

基　　金：上海市教委科学技术发展基金资助项目 (0 3FK0 3)

摘　　要：本文建立了双向作用筒式减振器汽车被动悬架数学模型——— 6个变量的一阶非线性微分方程组 ,应用Matlab6 5+Simulink对其进行仿真计算 ,采用加速度均方根值分析和评价汽车被动悬架在承受路面脉冲和阶跃信号时的行驶平顺性。在此基础上 ,本文给出了改变双向作用筒式减振器结构参数以提高被动悬架行驶平顺性的若干途径以及加速度均方根值与悬架刚度和簧载质量的拟合公式。A mathematical model of automobile passive susp en sion with a conventional double adjustable shock absorber,which is a system of f irst order non-linear differential equations with six variables was set up.The r ide comfort of vehicles under the action of a road bump or a road rise was analy zed with the help of Matlab6.5+ Simulink software,and the ride comfort was judg ed in terms of root mean square value (rms) of acceleration.The ways to improve ride quality of automobiles,and fitting formulas for root mean square value (rms ) of acceleration as a function of suspension stiffness and mass,were presented.

关 键 词：被动悬架 筒式 行驶平顺性 减振器 汽车行驶 路面 均方根值 加速度 途径 变量 

分 类 号：TH13[机械工程—机械制造及自动化] U463.33[机械工程—车辆工程]