Volume 40, Issue 1 pp. 524-549
RESEARCH ARTICLE

An active learning Kriging-based multipoint sampling strategy for structural reliability analysis

Zongrui Tian

Zongrui Tian

Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China

Anyang Key Laboratory of Advanced Aeronautical Materials and Processing Technology, Anyang Institute of Technology, Anyang, China

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Pengpeng Zhi

Corresponding Author

Pengpeng Zhi

Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China

Anyang Key Laboratory of Advanced Aeronautical Materials and Processing Technology, Anyang Institute of Technology, Anyang, China

Sichuan Province Engineering Technology Research Center of General Aircraft Maintenance, Civil Aviation Flight University of China, Guanghan, China

Correspondence

Pengpeng Zhi, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Building B1, Science and Technology Innovation Complex, No. 819, Xisaishan Road, Huzhou, Zhejiang 313000, China.

Email: [email protected]

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Yi Guan

Yi Guan

School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, China

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Xinghua He

Xinghua He

Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, China

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First published: 26 June 2023
Citations: 2

Abstract

In order to effectively and accurately assess the failure probability of mechanical structures, this paper proposes a multi-point sampling active learning reliability analysis method called AKMP. First, a GA-Halton sequence is introduced to make the initial samples well dispersed and homogeneous in the design space. Second, a new learning function FELF is constructed to efficiently update the Kriging model, which takes into account the relationship between the location of the sampling points and the performance fun. Then, a combination of NCC criterion and multipoint sampling strategy is proposed to further improve the convergence efficiency, which can effectively terminate the active learning process. Finally, numerical and engineering cases are tested to verify the application performance of the proposed AKMP. The results show that the method has superior performance in terms of both accuracy and failure probability efficiency, and can reduce the computational resources of the active learning process.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to their containing information that could compromise the privacy of the patient.

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