摘要
针对电液舵机故障特征和原因的模糊性,将模糊集引入其故障树分析当中。建立了电液舵机的模糊故障树,应用模糊运算法则对其进行了分析计算。分析结果表明,该方法可以较好地解决舵机故障树分析中部分事件故障判据及数据的模糊性问题,为电液舵机的设计、故障诊断和维修提供了有价值的参考。
It exists fuzziness in failure character and causation of electro-hydraulic actuator. To solve the problem, fuzzy theory was introduced into fault tree analysis. A fuzzy fault tree of electro-hydraulic actuator was established and analyzed according to fuzzy calculation rule. The result indicates that this method can solve the fuzziness problem of failure criterion and data in fault tree analysis. The result provides valuable reference for the design, fault diagnosis and maintainence of electro-hydraulic actuator.
出处
《机床与液压》
北大核心
2007年第6期226-227,175,共3页
Machine Tool & Hydraulics
关键词
可靠性
电液舵机
模糊故障树分析
Reliability
Electro-hydraulic actuator
Fuzzy fault tree analysis
