Failure Mode Criticality Analysis of Metro Door System
Implementing failure mode criticality analysis on metro door system could help to find the failure modes which have great criticality on door system, and it can be helpful for perfecting door maintenance decision. A criticality analysis method which is based on fuzzy evidential reasoning and grey theory is proposed. First, fuzzy belief structure is employed to assess failure modes; second, grey theory is used to calculate the degrees of grey relation of failure modes, that the experiment results show that three failure modes, including “EDCU function is broken,” “Limit switch S1 wears out,” and “Nut component wears out,” have great damage on door system. The results can be used for optimal design and maintenance of the metro door system.
KeywordsMetro door Criticality analysis Fuzzy evidential reasoning Grey theory
This research is supported by National High-tech R&D program of China (863 Program, No.2011AA110501) and National Technology R&D Program of China (No. BAG01B05). Zong yi Xing is the corresponding author.
- 2.Yang ZW, Ren GC, Meng BM (2011) Reliability analysis of failure mode for machining center. Modular Mach Autom Manuf Tech 10:10–16 (in Chinese)Google Scholar
- 3.Liu L, Liu HC, Lin QL (2011) FMEA method based on fuzzy evidential reasoning approach and grey relational theory. Fuzzy Syst Math 25(2): 71–80 (in Chinese)Google Scholar
- 6.Feng M (2008) FMEA method based upon fuzzy set theory and grey relational theory. Ind Eng J 11(4):109–112 (in Chinese)Google Scholar
- 7.Liu H-C, Liu L, Liu N (2012) Risk evaluation in failure mode and effects analysis with extended VIKOR. Expert Syst Appl 39:129126–129134Google Scholar