液阻悬置动态特性实验方法及实测分析

论述了液阻悬置及其主要部件的静态和动态力学特性的实验测试和数据处理方法，探讨了液阻悬置特性的评价参数；对惯性通道一活动解耦盘式、惯性通道式液阻悬置及其橡胶主簧进行了静态和动态力学特性测试，分析了液阻悬置的三向静刚度与其橡胶主簧的三向静刚度的关系，研究了预载荷、激振幅值和激振频率对液阻悬置及其橡胶主簧动态力学特性的影响；对惯性通道-活动解耦盘式和惯性通道式液阻悬置的动态特性进行了比较分析，研究了活动解耦盘对液阻悬置动态特性的影响；在不同的激振工况下，测量了上液室的动态压强和温度。

Experimental Methods and Test Evaluation for the Dynamic Characteristics of Hydraulically Damped Rubber Mount

Experimental methods for dynamic and static characteristics of HDM and its major components are presented. The test and data processing techniques are discussed, and index parameters for evaluating HDM performance are analyzed. Two HDMs with inertia tracks and their rubber springs are tested; one of the HDMs has a free uncoupler, and the other has no uncoupler. The relations between static stiffnesses of a HDM and its rubber spring in three orthogonal directions are investigated. The influences of preload, excitation amplitude and frequency on the dynamic stiffness of HDM and its rubber spring are verified. The effects of the uncoupler on dynamic characteristics of HDM are studied through comparing the test results of the two HDMs with and without the uncoupler. The dynamic fluid pressure and temperature in upper chamber of an HDM are measured under different excitation conditions. The results show that the influence of fluid viscosity variation on the performance of HDM is almost not noticeable in normal operation conditions. The experimental results presented here are instructive to the evaluation of various HDMs.