【摘要】 针对液压系统故障的多发性、故障在封闭回路中的传递性、设备构造的复杂性等特点,通过对现有故障诊断方法的分析,提出了基于模糊故障树理论的故障诊断方法。以泵控马达系统为研究对象,通过分析该系统的故障形式,建立了该系统的模糊故障树,进行了量化分析和算法研究,介绍了模糊故障树方法的原理、方法和特点。研究表明,这种方法较之传统方法实用、有效更多还原

【Abstract】 Fuzzy fault tree analysis is used to solve faults diagnosis in hydraulic system because of the multiformity of fault features, fault transmission in hydro circuits, complexity of hydraulic device construction. An example of pump controlled motor system is based on the principle, the method and the features of this method, which is described by analyzing its fault modes, constructing the fuzzy fault tree, making mathematics analysis of fuzzy fault tree and fault diagnosis algorithm research, etc. So it shows that this method is very effective and practice.更多还原