DFMEA_PFMEA 发生度评价准则

FMEA频度评价准则

FMEA Occurrence Evaluation Criteria

失效发生可能性 Probability of Failure DFMEA可能的失效率 DFMEA Possible Failure Rates ≥100件/每千辆车 ≥100 per thousand vehicles/items 50件/每千辆车 50 per thousand vehicles/items 20件/每千辆车 20 per thousand vehicles/items 10件/每千辆车 10 per thousand vehicles/items 5件/每千辆车 5 per thousand vehicles/items 中等：偶尔发生的失效 Moderate : Occasional failures 2件/每千辆车 2 per thousand vehicles/items / 1件/每千辆车 1 per thousand vehicles/items 低：相对很少发生的失效 Low: Relatively few failures 0.5件/每千辆车 0.5 per thousand vehicles/items / 0.1件/每千辆车 0.1 per thousand vehicles/items PFMEA可能的失效率 PFMEA Possible Failure Rates ≥100件/每千件 ≥100 per thousand pieces 50件/每千件 50 per thousand pieces 20件/每千件 20 per thousand pieces 10件/每千件 10per thousand pieces 5件/每千件 5 per thousand pieces 2件/每千件 2 per thousand pieces 1件/每千件 1 per thousand pieces / 0.5件/每千件 0.5 per thousand pieces 0.1件.每千件 0.1 per thousand pieces / 级别 Ranking 10 很高：持续性发生的失效 Very High : Persistent failures 9 8 高：反复发生的失效 High: Frequent failures 7 6 5 4 4 3 2 2 极低：失效不太可能发生 Remote : Failure is unlikely

≤0.010件/每千件 ≤0.010件/每千辆车 ≤0.010per thousand pieces ≤0.010 per thousand vehicles/items 1