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| Optimierungsgestützte Zuverlässigkeitsanalyse× | Fehlerbaumanalyse (FTA)× | |
|---|---|---|
| Fachgebiet≠ | Versuchsplanung | Reliabilität |
| Familie | Process / pipeline | Process / pipeline |
| Entstehungsjahr≠ | 1990s–2000s | 1981 |
| Urheber≠ | Enevoldsen, Sørensen, Der Kiureghian (foundational RBDO formulations, 1990s) | Vesely et al. (US NRC Fault Tree Handbook) |
| Typ≠ | Hybrid quantitative engineering method | Deductive top-down failure analysis |
| Wegweisende Quelle≠ | Haukaas, T., & Der Kiureghian, A. (2006). Strategies for finding the design point in non-linear finite element reliability analysis. Probabilistic Engineering Mechanics, 21(2), 133–147. DOI ↗ | Vesely, W. E., Goldberg, F. F., Roberts, N. H., & Haasl, D. F. (1981). Fault Tree Handbook (NUREG-0492). U.S. Nuclear Regulatory Commission. link ↗ |
| Aliasnamen | RBDO-coupled reliability analysis, optimization-integrated reliability assessment, reliability-based optimization, OA-RA | FTA, Fault Tree Method, Top-Down Reliability Analysis, Hata Ağacı Analizi |
| Verwandt≠ | 6 | 3 |
| Zusammenfassung≠ | Optimization-assisted reliability analysis couples probabilistic reliability assessment with mathematical optimization to simultaneously identify failure probabilities and find design configurations that satisfy reliability targets at minimum cost or weight. Widely applied in structural, mechanical, and aerospace engineering, it integrates methods such as FORM, SORM, or Monte Carlo simulation within an optimization loop so that design decisions are driven by quantified risk rather than deterministic safety factors alone. | 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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