液压减振器橡胶气带性能测试与分析

发泡橡胶具有较好的耐热老化性、耐油性和耐压缩永久变形性能，在液压减振器储油腔中采用发泡橡胶气带替代气腔，是解决减振器气穴现象和油液乳化现象的有效方法。发泡橡胶特性对减振器阻尼作用有很大的影响，通过发泡橡胶在液压油内压缩实验，用回归分析方法得到其压力-体积变化规律，进一步利用 AMESim软件完成对采用橡胶气带减振器的仿真分析。减振器测试结果表明，发泡橡胶的压力-体积变化规律较好的反映了气带在减振器中的工作情况，对液压减振器用发泡橡胶气带的设计有一定的指导意义。

Performance Test and Analysis of Rubber Gas Belt for Hydraulic Shock Absorber

 A foam rubber has good heat-proof aging, oil resistance and low compression set. It is an effective method to solve the cavitation and emulsification of hydraulic shock absorber by replacing a gas chamber with a foam rubber gas belt. The characteristics of foam rubber have great influence on damping effect of shock absorber. Through compression test in the hydraulic oil and regression analysis, the pressure-volume variation of foam rubber is obtained, and simulation analysis of shock absorber with rubber gas belt is completed by the software AMESim. The test results indicate that the pressure-volume variation of foam rubber can reflect the working condition of gas belt in the shock absorber sufficiently. The conclusion has certain guiding significance for design of foam rubber gas belt of hydraulic shock absorber.