现代电子技术2017，Vol.40Issue(16)：1-4,9,5.DOI:10.16652/j.issn.1004-373x.2017.16.001
模糊危害度评价方法在磁浮列车电路板FMECA分析中的应用
Application of fuzzy criticality evaluation method in failure mode effects and criticality analysis for circuit board in maglev train
摘要
Abstract
During the reliability analysis on the correlation board cards of train-mounted power grid for high-speed maglev train,it's difficult to provide an accurate and quantized analysis result due to the fuzziness of evaluation indicators and natural language,and the influence of analysts' subjectivity.Therefore,the fuzzy mathematic method was used to improve the criticality analysis.The expert evaluation is quantized and calculated by means of single factor evaluation set,comprehensive evaluation matrix and professor weight factors to get the result of fuzzy criticality evaluation.Taking the failure mode of a capacitor in the circuit board for ventilator monitoring belonging to the maglev on-board power system as an example,a failure mode and effect analysis (FMEA) and criticality analysis (CA) are established based on the circuit analysis result.The evaluation method based on fuzzy criticality is adopted to make a comprehensive judgment in combination with four professors' opinions.The result shows that conclusion is consistentwith the fact,which means that the method can combine professors' advices and decrease the influence of subjective factor.关键词
可靠性分析/模糊综合评判/故障模式分析/危害性分析Key words
reliability analysis/fuzzy comprehensive evaluation/FMEA/criticality analysis分类
信息技术与安全科学引用本文复制引用
林国斌,郭育华,王施宇..模糊危害度评价方法在磁浮列车电路板FMECA分析中的应用[J].现代电子技术,2017,40(16):1-4,9,5.基金项目
“十二五”国家科技支撑计划项目:高速磁浮交通工程化集成系统研究(2013BAG19B01) （2013BAG19B01）
