噪声与振动控制2019，Vol.39Issue(4)：114-119,6.DOI:10.3969/j.issn.1006-1355.2019.04.021
基于Berg模型橡胶衬套的汽车平顺性分析
Analysis of Auto Ride Comfort based on Berg Model of Rubber Bushings
摘要
Abstract
Considering the strong nonlinearity of the friction effect of the rubber bushing components described by the Berg model, the 3-DOF auto vertical model is established. With considering and without considering the Berg model for the rubber bushing, the time domain and frequency domain responses of the vehicle vibration and the influences of different suspension parameters on the root mean square value of weighted acceleration of the human body are analyzed by numerical simulation. Meanwhile, the influences of the Berg model parameter variation on the root mean square value of the weighted acceleration of the human body are analyzed. The results show that considering the rubber bushing described by the Berg model, the peak values of the human body acceleration and the suspension dynamic deflection are obvious decreased. The corresponding power spectral density amplitude values are decreased by 33 % and 16 % respectively. The root mean square value of the weighted acceleration of the human body also is reduced in different degrees with the change of different suspension parameters. So the ride comfort of the human body can be improved. When the Berg model parameters change within a certain range, the root mean square values of weighted acceleration of the human body also change.关键词
振动与波/车辆减振/橡胶衬套/Berg模型/加权加速度均方根值/平顺性Key words
vibration and wave/ vehicle cushioning/ rubber bushing/ Berg model/ root mean square value of weighted acceleration/ ride comfort分类
交通工程引用本文复制引用
张艳龙,李彪,王丽,孙绍轩..基于Berg模型橡胶衬套的汽车平顺性分析[J].噪声与振动控制,2019,39(4):114-119,6.基金项目
国家自然科学基金资助项目(11302092) （11302092）
