The reliability analysis and experiment verification of pressure spherical model for deep sea submersible based on data BP and machine learning technology

Du，Qinghai1; Liu，Wei1; Zou，Guang2; Qiu，Xiangyu1

2024-07-01

10.1016/j.marstruc.2024.103635

Marine Structures   影响因子和分区

0951-8339

Spherical pressure-resistant shells, as a universal structural component of deep-sea submersibles, provide a safe and normal operating environment for personnel and internal equipment. In the paper it presented and optimized the BP neural network model based on a genetic algorithm (GA) accordingly, and the method and accuracy are validated through by a beam model. Simultaneously focusing on steel spherical shells, the study proposed a dataset that captures the influence of the primary dimension of the shell (radius-to-thickness ratio, R/t) on the critical pressure response. The genetic algorithm is employed to optimize the back propagation (BP) neural network model for predicting critical pressure. The structural reliability is adopted as a design criterion to determinate and optimize the geometric parameters and critical pressure of the spherical shell structure. Finally, an ultra-high-strength steel spherical model is designed, constructed and meanwhile collapse pressure tests are accomplished to verify the accuracy of the presented improved BP neural network model based on the computational reliability method. The results reveal that the machine learning optimization design method proposed in this paper can effectively enhance the accuracy of critical pressure predictions and the precision of reliability assessments for deep-sea spherical shells.

BP neural network Deep-sea spherical hull Experimental verification Genetic algorithm Monte Carlo simulation

SCI ; EI

英语

其他

20241916067012

Deep neural networks ; Genetic algorithms ; High strength steel ; Intelligent systems ; Monte Carlo methods ; Reliability analysis ; Shells (structures) ; Spheres

Structural Members and Shapes:408.2 ; Ergonomics and Human Factors Engineering:461.4 ; Steel:545.3 ; Artificial Intelligence:723.4 ; Mathematical Statistics:922.2

ENGINEERING

2-s2.0-85192471767

Scopus

1.Shanghai Engineering Research Center of Hadal Science and Technology,College of Engineering Science and Technology,Shanghai Ocean University,Shanghai,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China

Du，Qinghai,Liu，Wei,Zou，Guang,et al. The reliability analysis and experiment verification of pressure spherical model for deep sea submersible based on data BP and machine learning technology[J]. Marine Structures,2024,96.

Du，Qinghai,Liu，Wei,Zou，Guang,&Qiu，Xiangyu.(2024).The reliability analysis and experiment verification of pressure spherical model for deep sea submersible based on data BP and machine learning technology.Marine Structures,96.

Du，Qinghai,et al."The reliability analysis and experiment verification of pressure spherical model for deep sea submersible based on data BP and machine learning technology".Marine Structures 96(2024).