AWK-TIS:An Improved AK-IS Based on Whale Optimization Algorithm and Truncated Importance Sampling for Reliability Analysis  

作　　者：Qiang Qin Xiaolei Cao Shengpeng Zhang 

机构地区：[1]Aerospace Science and Industry Corporation Defense Technology Research and Test Center,Beijing,100854,China [2]Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Department of Engineering Mechanics,Tsinghua University,Beijing,100084,China

出　　处：《Computer Modeling in Engineering & Sciences》2023年第5期1457-1480,共24页工程与科学中的计算机建模（英文）

基　　金：supported by the Technical Basic Scientific Research Projects of State Administration of Science,Technology and Industry for National Defence,PRC (Grant No.JSZL2019204C001).

摘　　要：In this work,an improved active kriging method based on the AK-IS and truncated importance sampling(TIS)method is proposed to efficiently evaluate structural reliability.The novel method called AWK-TIS is inspired by AK-IS and RBF-GA previously published in the literature.The innovation of the AWK-TIS is that TIS is adopted to lessen the sample pool size significantly,and the whale optimization algorithm(WOA)is employed to acquire the optimal Krigingmodel and themost probable point(MPP).To verify the performance of theAWK-TISmethod for structural reliability,four numerical cases which are utilized as benchmarks in literature and one real engineering problem about a jet van manipulate mechanism are tested.The results indicate the accuracy and efficiency of the proposed method.

关 键 词：Structural reliability active kriging whale optimization algorithm AK-IS 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]