含惯容器的两级汽车悬架振动性能

在机电相似理论的基础上，基于“惯容器”具有与“电容器”相类似的通高频、阻低频的特性，建立了每一级中均含有“惯容器-弹簧-阻尼器”(inerter-spring-damper，ISD)的两级ISD悬架系统的单轮车辆模型.仿真分析了汽车悬架的惯质系数对两级ISD悬架系统传递特性的影响，在频域和时域内分别探讨了随机和脉冲输入下汽车悬架系统的动力学响应.研究结果表明:在满足车身加速度增益的要求下，适当提高惯质系数可以改善两级ISD悬架系统的减振性能.两级ISD悬架具有比经典ISD悬架更好的低频减振性能.与传统被动悬架相比，两级ISD悬架具有更好的综合减振性能.

Vibration Performance of Two-Stage Vehicle Suspension with Inerters

Based on the electromechanical similarity theory and the characteristics of the inerter， which is similar to the capacitor in the characteristics that high frequency can pass but low frequency cannot， a single wheel vehicle model of two-stage ISD suspension with "inerter-spring-damper"(ISD)in each level was established. The influence of the inertia coefficient of vehicle suspension on the transmission characteristics of the two-stage ISD suspension system was simulated and analyzed， and the dynamic response of the vehicle suspension system under random and pulse input was discussed in the frequency domain and the time domain respectively. The results showed that under the requirement of the acceleration gain of the vehicle body， the proper improvement of the inertia coefficient can improve the vibration damping performance of the two-stage ISD suspension system. The two-stage ISD suspension has a better low-frequency vibration damping performance than the classic ISD suspension.Compared with the traditional passive suspension， the two-stage ISD suspension has a better comprehensive vibration damping performance.