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A new reliability analysis approach with multiple correlation neural networks method

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Abstract

Structural reliability is defined as the safety probability of the structure under the influence of uncertain factors over a given period of time. The direct integration method from the definition of reliability is closer to the true value. However, the complex integration domain and the calculation of multiple integrals bring difficulties for reliability calculation. This study proposes a multiple correlation neural networks (MCNN) method to solve these problems. In the first step, a set of artificial neural networks (ANNs) are built to approximate the safety domain of structural reliability. Then, the trained ANNs are connected with improved dual neural networks to form the MCNN method. Using the correlation of ANNs in MCNN, the solution of multiple definite integrals with the implicit integral domain is obtained. The proposed method has significant accuracy and efficiency compared with other existing methods and increases the computational stability of ANN-based reliability calculation methods. The performances of the newly proposed method in calculation accuracy and efficiency are analyzed for several structural reliability problems.

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Acknowledgments

The work was supported by National Natural Science Foundation of China (51975110), Liaoning Revitalization Talents program (XLYC1907171), and Fundamental Research Funds for the Central Universities (N2003005).

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Correspondence to Xianzhen Huang.

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Authors Shangjie Li, Xianzhen Huang, Xingang Wang, Yuxiong Li declare that they have no conflict of interest.

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Li, S., Huang, X., Wang, X. et al. A new reliability analysis approach with multiple correlation neural networks method. Soft Comput 27, 7449–7458 (2023). https://doi.org/10.1007/s00500-022-07685-6

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  • DOI: https://doi.org/10.1007/s00500-022-07685-6

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