China Safety Science Journal ›› 2018, Vol. 28 ›› Issue (5): 43-48.doi: 10.16265/j.cnki.issn1003-3033.2018.05.008

• Safety Systematology • Previous Articles     Next Articles

Research on method of evaluating harmfulness of metro vehicle failure mode

LI Lei1, SHI Jizhong1, ZHANG Xiaoqiang2   

  1. 1 College of Engineering,Zhejiang Normal University,Jinhua Zhejiang 321004,China;
    2 Dispatch Department,China Railway Corporation,Beijing 100844,China
  • Received:2018-02-04 Revised:2018-04-01 Online:2018-05-28 Published:2020-11-25

Abstract: To improve the accuracy of evaluation of failure modes criticality of metro vehicle,a method based on information axiom and interval 2-tuple linguistic was worked out.In this paper,firstly,the evaluation value of risk factors adopted linguistic value,and the interval two tuple linguistic was used to deal with the linguistic value.Secondly,the subjective and objective weight of risk factors were considered simultaneously.Thirdly,the calculating method of information was presented based on information axiom and the interval two tuple linguistic,and according to the size of the information,the failure mode criticality was evaluated.Finally,the method was applied to an example and compared with other methods to verify its feasibility and effectiveness.The results show that failure mode criticality got by using the method conforms with the reality,and that the results are more objective and accurate than those obtained by using other methods.

Key words: information axiom, interval 2-tuple linguistic, comprehensive weight, failure mode, criticality evaluation

CLC Number: