Research Article
An Extended FMEA Model for Exploring the Potential Failure Modes: A Case Study of a Steam Turbine for a Nuclear Power Plant
Table 6
Calculation results and rankings obtained with the three methods.
| | FMi | Conventional RPN (S, O, and D) | Cost-based RPN (S, O, D, and E) | Proposed FMEA method | | RPN | Ranking | RPN | Ranking | RCi | Ranking |
| | FM1 | 36 | 12 | 180 | 12 | −0.0329 | 11 | | FM2 | 96 | 9 | 480 | 9 | 0.0271 | 4 | | FM3 | 200 | 1 | 1,000 | 1 | 0.0298 | 3 | | FM4 | 108 | 7 | 648 | 3 | 0.0386 | 2 | | FM5 | 120 | 3 | 600 | 5 | −0.0108 | 8 | | FM6 | 84 | 10 | 420 | 10 | 0.0104 | 5 | | FM7 | 84 | 10 | 420 | 10 | −0.0063 | 7 | | FM8 | 112 | 5 | 560 | 7 | 0.0050 | 6 | | FM9 | 108 | 7 | 756 | 2 | 0.0391 | 1 | | FM10 | 112 | 5 | 560 | 7 | −0.0436 | 12 | | FM11 | 120 | 3 | 600 | 5 | −0.0237 | 9 | | FM12 | 125 | 2 | 625 | 4 | −0.0326 | 10 |
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