Physics Bucharest 2017

FMEA methodology

• Identification of Failure modes → fault tree → Cause & Effects (Worst case scenario) • Process control strategies in operation → Prevent causes, detect failures, mitigate severity of the effects • Judge the effectiveness of the current process control • Failure modes sorting based on 3 indexes (ordinal scales): - Occurrence (O) - Severity (S) - Detectability (D) • 1 = low probability, low severity, high detectability • 10 = high probability, high severity, low detectability