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Structural reliability optimization design of reinforced shell structure based on adaptive surrogate model
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Yuzhuo LIU1, Lixiong CAO1, 2, Jianguo WU3, Haibo LI3
Journal of Mechanical Strength | 2025, 47(2) : 68 - 74
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Journal of Mechanical Strength | 2025, 47(2): 68-74
• Optimization∙Reliability •
Structural reliability optimization design of reinforced shell structure based on adaptive surrogate model
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Yuzhuo LIU1, Lixiong CAO1, 2, Jianguo WU3, Haibo LI3
Affiliations
  • 1.State Key Laboratory of Advanced Design and Manufacturing Technology for Vehicle, Hunan University, Changsha 410082, China
  • 2.Lushan Laboratory, School of Design, Hunan University, Changsha 410082, China
  • 3.Key Laboratory of Reliability and Environmental Engineering, Beijing Institute of Structure and Environment Engineering, Beijing 100076, China
Published: 2025-02-15 doi: 10.16579/j.issn.1001.9669.2025.02.009
Outline
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Reinforced shell structure is widely used in aerospace load-bearing structures because its high specific stiffness and specific strength.By considering the uncertainty and risk factors in the structural parameters, the reliability-based design optimization (RBDO) can avoid the overly conservative design of the structure and ensure its reliability and safety.An efficient RBDO method based on adaptive surrogate model was proposed to solve the problem of lightweight design of reinforced shell structure under buckling reliability constraints.The adaptive addition of sample points was implemented through the expected feasibility function criterion, and the discrete variables was continued by constructing piecewise functions.This increases optimization efficiency while ensuring the reliability of design results.Finally, the effectiveness of the proposed method is verified by comparing the RBDO results with the deterministic optimization results.

Reinforced shell structure  /  Reliability-based design optimization  /  Adaptive surrogate model  /  Expected feasibility function criterion
Yuzhuo LIU, Lixiong CAO, Jianguo WU, Haibo LI. Structural reliability optimization design of reinforced shell structure based on adaptive surrogate model[J]. Journal of Mechanical Strength, 2025 , 47 (2) : 68 -74 . DOI: 10.16579/j.issn.1001.9669.2025.02.009
Funding
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  • National Natural Science Foundation of China(52375241)
  • Natural Science Foundation of Hunan Province(2022JJ40058; 2023JJ60152)
Appendix
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Year 2025 volume 47 Issue 2
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74
37
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.02.009
  • Receive Date：2023-06-09
  • Online Date：2026-03-18
  • Published：2025-02-15
Article Data
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History
  • Received：2023-06-09
  • Revised：2023-09-04
Funding
National Natural Science Foundation of China(52375241)
Natural Science Foundation of Hunan Province(2022JJ40058; 2023JJ60152)
Affiliations
    1.State Key Laboratory of Advanced Design and Manufacturing Technology for Vehicle, Hunan University, Changsha 410082, China
    2.Lushan Laboratory, School of Design, Hunan University, Changsha 410082, China
    3.Key Laboratory of Reliability and Environmental Engineering, Beijing Institute of Structure and Environment Engineering, Beijing 100076, China

Corresponding:

CAO Lixiong, E-mail：
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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