方法对比
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| 基于风险的过程能力分析× | 故障树分析 (FTA)× | |
|---|---|---|
| 领域≠ | 实验设计 | 可靠性 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1990s–2000s (formal integration with risk analysis) | 1981 |
| 提出者≠ | Evolved from classical capability indices (Juran, Kane) integrated with risk frameworks (FMEA, ISO 9001) | Vesely et al. (US NRC Fault Tree Handbook) |
| 类型≠ | Quantitative quality engineering method | Deductive top-down failure analysis |
| 开创性文献≠ | Montgomery, D. C. (2020). Introduction to Statistical Quality Control (8th ed.). Wiley. ISBN: 978-1119399308 | Vesely, W. E., Goldberg, F. F., Roberts, N. H., & Haasl, D. F. (1981). Fault Tree Handbook (NUREG-0492). U.S. Nuclear Regulatory Commission. link ↗ |
| 别名 | RBPCA, risk-adjusted capability analysis, capability-risk integration, risk-informed SPC | FTA, Fault Tree Method, Top-Down Reliability Analysis, Hata Ağacı Analizi |
| 相关≠ | 4 | 3 |
| 摘要≠ | Risk-based Process Capability Analysis (RBPCA) combines classical process capability indices (Cp, Cpk, Pp, Ppk) with structured risk assessment tools — such as FMEA risk priority numbers — to prioritise improvement actions not merely by how capable a process is, but by the potential harm its failures can cause. The approach is widely used in automotive, aerospace, medical device, and pharmaceutical manufacturing to align quality engineering decisions with risk management requirements. | Fault Tree Analysis (FTA) is a top-down, deductive reliability method that begins with an undesired top-level failure event and systematically traces backward through chains of contributing causes using Boolean logic gates (AND, OR). First formalized by Watson at Bell Telephone Laboratories in 1961 and later standardized by Vesely, Goldberg, Roberts, and Haasl in the landmark 1981 NRC Fault Tree Handbook, FTA has become a cornerstone of quantitative risk assessment in nuclear, aerospace, and industrial safety engineering. |
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