逆向FTF方法在船用燃气轮机故障分析中的应用

The Application of Reverse FTF Method in the Fault Analysis of Marine Gas Turbines

阐述了故障树分析 (FTA)与故障模式影响及危害性分析 (FMECA)的特点及两者之间的相互关系 ,提出了一种FTA与FMECA配合使用来分析系统可靠性的逆向FTF分析程序 ,利用该方法对船用燃气轮机的起动故障进行了定量分析 ,确定了系统的薄弱环节 ,得到了有实用价值的结论。

Discussed are the specific features of FTA (failure tree analysis) and FMECA (failure mode effect criticality analysis) as well as the interrelationship between the two methods of analysis. On this basis the authors have come up with a reverse FTF (FTA + FMECA = comprehensive analysis method) method to analyze system reliability. With the help of the above-cited method a quantitative analysis was conducted of the start-up failure of a marine gas turbine with vulnerable links in the turbine system being identified and practical countermeasures suggested.