基于压力积分的液压系统泄漏故障诊断方法

The Method of Leakage Fault Diagnosis for Hydraulic systemBased on Pressure Integral Algorithm

介绍一种基于压力积分的液压系统泄漏故障诊断方法 ,利用新型的压力波形采集仪测量并记录液压系统被测容腔的压力波形 ,用积分方法诊断液压系统的液导是否变化 ,即是否产生泄漏。给出该方法的原理和理论推导 ,通过台架实验给出了液压系统外泄漏情况下的实验结果。

This paper presents a method of leakage fault diagnosis for hydraulic system based on pressure integral algorithm.By means of sampling the pressure waves by portable pressure wave sampler, this method computes the pressure integral of the tested volume of hydraulic system to diagnose the leakage. This paper not only gives the princirles of this method,but also shows the procedures and the results of bench experiments.