Fault Search Method of Fuzzy Multi-attribute Decision-making Based on Grey Relational Degree
Yingyi Zhang · Coal Mine Machinery · 2010
In order to overcome the disadvantages of FTA(fault tree analysis) in searching for faults,a fault search method is developed by using fuzzy multi-attribute decision-making based on grey relational degree.Using FTA and considering minimal cut sets’ fault probabilities and search cost simultaneously,credible degree is described as grey degree.And then,the grey relational degree of minimal cut sets to grey fuzzy ideal solutions are computed.Secondly,relative closeness degree is achieved.An optimal search order is found.The rapidity and accuracy of fault diagnosis and objective creditability of the result of search decision-making are improved.An example is given to show its feasibility.