油气弹簧连通形式对其系统动态特性的影响

Research on Influence of Connected Form to System Dynamic Characteristics of Hydro-Pneumatic Suspension

为了分析油气弹簧连通形式对其系统动态特性的影响,建立了两轴连通式油气弹簧模型,并利用台架试验证实了模型的正确性;建立了4种不同结构形式的四轴连通式油气弹簧模型;对四种连通形式的油气弹簧输出力、蓄能器压力动态特性进行了对比分析。分析结果表明,四轴油缸上、下腔都对应连通的油气弹簧结构,其各轴油气弹簧输出力的峰值和范围最小,各轴油气弹簧的输出力差值最小,且输出力的相位同步性最好。

As to connected hydro-pneumatic suspension(HS),the model of HS with two connected cylinders was built up.And the bench test data prove the model correctly.Then,four forms of model of HS with four connected cylinders were built up.In the end,the system dynamic characteristic was compared in cylinder output force and accumulator pressure.The results prove that the form of chambers connected correspondingly between four cylinders obtains optimal system dynamic characteristics,such as minimum cylinder output force,minimum output delta force between four connected cylinders,and phase synchronization.