Research of AMU Unit Fault Testability Based on Multi-signal Modeling and Fuzzy Decision

摘要：

　　The Multi-signal Flow Graph (MFG) is a simple and effective system modeling methodology,widely used in testability analysis and fault diagnosis field.In order to shorten the maintenance time and reduce the influence of human factors,the MFG method was introduced,and it was used to set up the testability model of aircraft Audio Management Unit (AMU) and found the fault-testability dependency matrix and the fault-fault dependency matrix.Based on dependency matrix and real unit fault message,the trapezoidal fuzzy number algorithm was introduced,thus the new fault diagnosis method was generated.Finally,an example proves that the fault diagnosis algorithm can not only locate the fault more accurately,but also improve the maintenance efficiency.

关键词： fault analysis Multi-signal flow graphs dependency matrix trapezoid fuzzy number diagnosis algorithm

作者: Dexin Zhou Mingyu Song Tengda Ma

作者单位: Aeronautical Automation College,Civil Aviation University of China,Tianjin,China

会议类型: 国际会议

会议名称: 2013 2nd international Conference on Opto-Electronics Engineering and Materials Eesearch(2013第二届光电工程与材料研究国际会议)(OEMR2013)

会议地点: 郑州

会议语种:英文

页码: 944-949

在线出版日期: 2013-10-19（万方平台首次上网日期，不代表论文的发表时间）