同步性对“双缸多阀”电液振动台性能的影响

Effect of Synchronization to Performance of "Double-cylinder and Multi-valve" Electro-hydraulic Shaker

为了克服电液振动台伺服阀频响在高频段的衰落特性,离心机机载电液振动台采用了"双缸多阀"的技术路线来减小单个伺服阀的开口。由于需要对两个伺服阀-液压缸系统进行独立控制,因此两缸之间的同步程度将对整个系统的性能产生影响。文中采用Matlab/Simulink软件建立"双缸多阀"电液振动台系统仿真模型,对该问题进行了定量分析并提出了实现"双缸多阀"方案的一些基本要求。

In order to overcome the fading characteristics of the high frequency response in the servo valve of electro-hydraulic shaker, the ＂double-cylinder and multi-valve＂ technology road map was used to reduce the size of the single serve-valve＇s opening in many electro-hydraulic shakers of machine carried centrifugal. Because independent control for two servo-valve and hydraulic-cylinder system was needed, the performance of all system would be affected by the synchronization between the two cylinders. Base on the modeling of the ＂double-cylinder and multi-valve＂ electro-hydraulic shaker which was established by the Matlab/Simulink software, the quantitative analysis of this problem is completed, and some basic requirements to achieve the ＂double-cylinder and multi-valve＂ program are advanced.