“惯容器-弹簧-阻尼”悬架系统正实综合研究  

The PR synthesis research of the ISD suspension system

作　　者：陈国涛[1] 陈龙[1] 张孝良[1] 汪若尘[1] 

机构地区：[1]江苏大学汽车与交通工程学院,镇江212013

出　　处：《机械设计与制造》2012年第4期116-118,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金(50905078);教育部博士点基金(200802991016)

摘　　要：为了设计一种以舒适性为导向的车辆悬架结构,基于无源系统理论和LMI线性矩阵不等式方法,设计了正实鲁棒控制器,以车身加速度均方根值为乘坐舒适性指标,将求解悬架结构的问题归结为求解正实鲁棒控制器的问题,利用遗传算法结合LMI算法解BMI双线性矩阵不等式求解该问题,然后将得到的正实阻抗传递函数用弹簧、阻尼、惯容器(Inerter-Spring-Damper,ISD)物理实现出来。结果表明,与传统被动悬架相比,综合出来的ISD悬架能够显著改善车辆的乘坐舒适性和行驶安全性。In order to design a kind of comfort-oriented vehicle suspension structure,a positive real robust controller is designed based on the passive system theory and linear matrix inequalities（LMI） method.With the root-mean-square（RMS）of vehicle body acceleration as the ride comfort index,the solution of suspension structures come down to the solution of the Positive-Real（PR）of robust controller.Then using evolutionary algorithm combined with LMI algorithm to solve double linear matrix inequality,and the impedance transfer function of the positive real obtained are physically realized by using passive elements such as inerter,spring and damper,which results show that,compared with traditional passive suspension,the synthesized ISD suspension system can significantly improve vehicle ride comfort and safety.

关 键 词：悬架系统 惯容器 正实综合 

分 类 号：TH16[机械工程—机械制造及自动化] U463.33[机械工程—车辆工程]