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On buffered failure probability in design and optimization of structures

机译：结构设计与优化中的缓冲失效概率

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In reliability engineering focused on the design and optimization of structures, the typical measure of reliability is the probability of failure of the structure or its individual components relative to specific limit states. However, the failure probability has troublesome properties that raise several theoretical, practical, and computational issues. This paper explains the seriousness of these issues in the context of design optimization and goes on to propose a new alternative measure, the buffered failure probability, which offers significant advantages. The buffered failure probability is handled with relative ease in design optimization problems, accounts for the degree of violation of a performance threshold, and is more conservative than the failure probability.
机译：在专注于结构设计和优化的可靠性工程中，可靠性的典型度量是相对于特定极限状态的结构或其单个组件的失效概率。但是，故障概率具有麻烦的属性，从而引发了一些理论，实践和计算问题。本文在设计优化的背景下解释了这些问题的严重性，并继续提出了一种新的替代措施，即缓冲失效概率，它具有明显的优势。缓冲的故障概率在设计优化问题中相对容易地处理，解决了违反性能阈值的程度，并且比故障概率更为保守。

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