天棚控制的共享气室悬架系统平顺性研究  

Study on Sky-Hook Control of Shared Chamber Air Suspension for Ride Comfort

作　　者：王德志 李美[1] 张少波 谭偲龙 WANG De-zhi;LI Mei;ZHANG Shao-bo;TAN Si-long(College of Mechanical and Electrical Engineering,Hainan University,Hainan Haikou 570228,China)

机构地区：[1]海南大学机电学院,海南海口570228

出　　处：《机械设计与制造》2021年第8期202-206,共5页Machinery Design & Manufacture

基　　金：海南省自然科学基金资助项目(518QN209);海南省教育厅项目资助(Hnky2019ZD-2)。

摘　　要：采用拟合建模的方法建立共享气室空气弹簧系统刚度模型。结合力学及天棚阻尼控制理论建立半主动悬架系统Matlab平顺性模型,并将共享气室空气弹簧模型与悬架系统模型结合,搭建共享气室空气悬架试验台架;研究不同频率下共享气室空气弹簧系统参数对半主动悬架系统平顺性的具体影响。结果表明空气弹簧参数变化对车身加速度以及轮胎动载荷的影响较为明显,而对悬架动挠度的影响较小。同时发现各参数在低频率范围对半主动悬架平顺性的影响较高频范围更加显著。One stiffness model of Air Chamber Shared Air Spring has been established with the method of fitting modeling.The Matlab model of semi-active suspension system is established by combining mechanics and Sky-Hook damper control theory.Combining the air chamber shared air spring model with the suspension system model,one test bench has been built.The influence that the parameters of Air Chamber Shared Air Spring has on the ride comfort during different frequency has been studied.The result shows that the change of air spring parameters has obvious influence on the acceleration and the dynamic load of the tire,but the impact on the deflection of the suspension is tiny.During lower frequency,the influence of each parameter on the ride comfort is more significant than the higher frequency range.

关 键 词：空气弹簧 半主动悬架 阻尼控制 频率 共享气室 

分 类 号：TH16[机械工程—机械制造及自动化] U463.1[机械工程—车辆工程]