Reasearch on Fuzzy Comprehensive Evaluation Method for Oil & Gas Pipeline Failure Based on Fault Tree Analysis
基于FTA油气长输管道失效的模糊综合评价方法研究

The combination method of fault tree analysis and fuzzy comprehensive evaluation method was proposed to make research of oil&gas pipeline failure. The common factors influencing oil& gas pipeline failure could be determined with fault tree analysis. However, the practical operated oil&gas pipelines often have some individual fators and uncertain ones (fuzzy ones). Fuzzy comprehensive evaluation method could evaluate objectively based on evaluated factor sets and weight sets provided by fault tree analysis. The new model steps were listed by taking the example of oil&gas pipeline failure. The result indicates that the method makes full use of their advantages and controls their disadvantages, and is feasible to evaluate the oil&. gas pipeline failure.