An Integrated Approach for Fuzzy Failure Mode and Effect Analysis Using Fuzzy AHP and Fuzzy MARCOS

摘要

Failure mode and effects analysis (FMEA) is a potential risk evaluation tool in reliability engineering. The RPN based FMEA approach has been criticized for its multiple drawbacks. Recently, the Multi-Criteria based Decision Making (MCDM) methods have proven their efficiency to overcome the limitations of RPN based FMEA approach. This work develops an integrated fuzzy MCDM FMEA approach by employing Buckley’s Fuzzy Analytical Hierarchy Process (FAHP) and modified Fuzzy Measurement of Alternatives and Ranking according to Compromise Solution (FMARCOS). Both FAHP and modified FMARCOS methods are capable to deal with the linguistic evaluations made by multiple experts and to arrive at a rational decision for risk ranking of the failure modes. A benchmark FMEA case is utilized to feature the superiority and robustness of the suggested approach. Finally, sensitivity analysis is done and the found risk ranking results are contrasted with other popular fuzzy MCDM approaches.