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中文摘要：
针对燃气轮机各类故障的诊断问题，将条件规则与故障树法相综合的诊断技术应用到燃气轮机的故障诊断研究中。在建立燃气轮机失效故障树的基础上，通过归纳总结典型的故障案例和维修经验，构建了基于条件规则的逻辑推理模型，利用基于信号处理技术的燃气轮机故障分析原理，在故障树的中间事件和底端事件上，增加了具体故障分析的条件规则，并进行了物理和逻辑判断，以确定故障树每个分支的诊断选择，从而明确了每一步的故障诊断分析，最终得出了精确的故障原因和故障部位。结合某海上石油作业区燃气轮机发电机组的转子振动故障实例，在进行燃气轮机发电机组在线监测的基础上，运用基于条件规则的故障树法快速而准确地分析出了故障的根本原因。研究结果表明，该诊断方法简单易行，便于维修技术人员掌握，可广泛运用于燃气轮机发电机组的可靠性维护。
英文摘要：
Aiming at all kinds of the gas turbine fauh diagnosis problems, a comprehensive technology of the rule-based and fault tree method was investigated in the gas turbine fault diagnosis research. On the base of the established fault tree of gas turbine, the typical fault cases and maintenance experience were summarized, the based on condition the rules of logic reasoning model was established, the fault analysis princi- ple of gas turbine based on signal processing was utilized, the certain conditions rules were increased in the middle of the fault tree events and bottom events, the physical and logical judge were judged to determine the fault tree on each branch diagnosis choice, thus every step of the fault diagnosis analysis were clear, the accurate fault causes and failure parts were concluded in the end. For the gas turbine generating unit rotor vibration fault example of an offshore oil operation area , the rapid and accurate the root causes were analyzed by the based on rules con- ditiongs of fault tree method on the foundation of online monitoring, The results indicate that the method is convenient in maintenance and technical staff to grasp, it can be widely used in gas turbine generating unit reliability maintenance field.
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