Intelligent moving extremum weighted surrogate modeling framework for dynamic reliability estimation of complex structures

Da Teng, Yun Wen Feng, Jun Yu Chen

科研成果: 期刊稿件文章同行评审

22 引用 (Scopus)

摘要

To improve the dynamic reliability analyses of complex structures, intelligent weighted Kriging-based moving extremum framework (IWKMEF) is developed by absorbing moving least squares (MLS) thought, Gaussian weight, particle swarm optimization (PSO) method and Kriging model into extremum response surface method (ERSM). ERSM method is employed to convert the dynamic output response into extremum values. MLS thought is used to find effective samples. Gaussian weight is to improve modeling precision. PSO method is applied to optimize the local compact support region radius of MLS. The radial deformation of turbine blisk is conducted to verify the effectiveness of IWKMEF method. The results show that the reliability degree of turbine blisk is 0.9984 when the allowable value is 1.9217 × 10−3 m; The developed IWKMEF holds high performance by comparing direct simulation, ERSM and traditional Kriging model. The efforts of this study provide a useful insight for the dynamic reliability analysis of complex structure.

源语言英语
文章编号106364
期刊Engineering Failure Analysis
138
DOI
出版状态已出版 - 8月 2022

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