航空科学技术2025，Vol.36Issue(2)：91-101,11.DOI:10.19452/j.issn1007-5453.2025.02.008
模糊失效状态下时变可靠性分析的单层自适应半代理模型方法
Single-loop Adaptive Semi-surrogate Model Method for Time-dependent Reliability Analysis under Fuzzy Failure States
摘要
Abstract
In practical engineering,the phenomenon of coupling between time variability and fuzziness is prevalent,leading to difficulties in evaluating system reliability due to model complexity and large computation scales.To address this issue,this paper proposes an efficient algorithm from a single-loop decoupling perspective combined with an adaptive semi-surrogate model.Firstly,the variable that measures the fuzzy property of failure boundary is embedded into the time-dependent limit state function through an auxiliary variable based on single-loop decoupling,which transforms the time-dependent reliability analysis under fuzzy failure states into an equivalent two states time-dependent reliability analysis with the relatively high-dimensional variables.Secondly,to avoid establishing the surrogate of the complex equivalent time-dependent limit state function with high-dimensional input variables,the relationship of the surrogate models between the original time-dependent limit state function and the equivalent time-dependent limit state function with high-dimensional input variables is derived based on the Gaussian properties of the Kriging model.Then an efficient single-loop semi-surrogate model method for analyzing the time-dependent reliability analysis under fuzzy failure states is constructed.Finally,numerical examples and analyses of composite wing models validate the efficiency and accuracy of the proposed method.This approach enables the efficient evaluation of time-dependent reliability for complex engineering systems under fuzzy failure states,providing a reference for optimizing and enhancing system safety and reliability.关键词
模糊失效状态/时变可靠性/单层法/半代理/Kriging代理模型Key words
fuzzy failure state/time-dependent reliability/single-loop method/semi-surrogate/Kriging surrogate model分类
航空航天引用本文复制引用
员婉莹,潘玥,王喆,陈向明,王燕萍..模糊失效状态下时变可靠性分析的单层自适应半代理模型方法[J].航空科学技术,2025,36(2):91-101,11.基金项目
国家自然科学基金(12002237) （12002237）
航空科学基金(20220009053001) （20220009053001）
重庆市自然科学基金(CSTB2022NSCQ-MSX0861) （CSTB2022NSCQ-MSX0861）
陕西省科学技术协会青年人才托举计划项目(20230446) （20230446）
广东省基础与应用基础研究基金(2022A1515011515) National Natural Science Foundation of China(12002237) （2022A1515011515）
Aeronautical Science Foundation of China(20220009053001) （20220009053001）
Natural Science Foundation of Chongqing(CSTB2022NSCQ-MSX0861) （CSTB2022NSCQ-MSX0861）
Young Talent Fund of Association for Sci-ence and Technology in Shaanxi of China(20230446) （20230446）
Guangdong Basic and Applied Basic Research Foundation(2022A1515011515) （2022A1515011515）
