门座式起重机的脱钩事故故障树分析与对策研究

Research on FTA and Preventive Measures of Accidents Due to Load Falling off Crane Hook

本文应用故障树分析理论对脱钩事故进行了探讨,建立了脱钩事故故障树并用VC++工具编写了故障树分析程序,求出了故障树的所有最小割集和所有底事件的临界重要度及其排序,从而为吊物坠落事故的预测和诊断提供了有益的参考。本文还根据分析结果给出了具体的预防和改进措施。

This paper discusses accidents due to load falling off crane hook based on the theories of FTA . The fault tree is established and the program for FTA is presented using VC＋＋. Through this program, all of the minimal cutsets,the critical degree of importance and the queue of basic issues are worked out. This is the basis for the prediction and diagnosis of accidents due to load falling off crane hook. At the last of this paper, preventive and reformative measures are given.