中文摘要：

基于＂惯容—弹簧—阻尼＂机械系统与＂电容—电感—电阻＂电子系统之间严格的对应相似关系,根据级联滤波的基本原理,以并联的弹簧和阻尼为第一级,并联的惯容器、弹簧和阻尼为第二级,构建一种两级串联型＂惯容—弹簧—阻尼＂车辆悬架系统。建立悬架的半车模型,分析随机和脉冲激励下悬架系统的综合性能,探讨第二级弹簧刚度对系统性能的影响。结果表明,与传统悬架相比,两级串联型＂惯容—弹簧—阻尼＂悬架系统具有良好的动态性能,车身质心垂直加速度、车身俯仰加速度、前轮胎动载荷、后轮胎动载荷功率谱密度低频峰值分别减小了81%、81%、79%、82.8%,有效抑制了车身共振,明显改善了车辆的乘坐舒适性,协调了平顺性与安全性之间的矛盾。

英文摘要：

Based on the real analogy between the inerter-spring-damper mechanical system and the capacitor-inductor-resistor electrical system,an inerter-spring-damper（ISD） vehicle suspension system with two stages connected in series is proposed according to the principle of cascaded filter.In such a suspension system,the first stage is a conventional passive suspension,and the second stage is a parallel inerter-spring-damper.A half-car vehicle model is built to analyze performance of the suspension system under random and pulse input,and to investigate effects of the second suspension stiffness on system performance.The results indicate that in contrast to conventional suspension,the proposed suspension has a better dynamic performance,and improvements of 81%,81%,79% and 82.8% are obtained for PSD peak values of vertical acceleration of the centre of body mass,pitch acceleration of body,dynamic tire load of front and rear wheels in lower-frequency stage.The results further show that the proposed suspension can effectively suppress body resonance,better ride comfort,and improve trade-offs of the ride and handling.