Multidisciplinary and multiobjective optimization of pressurized cylindrical shell based on collaborative optimization

被引：0
|
作者：
Wang M. [1 ]
Liu F. [1 ]
Tian Z. [1 ]
Yang S. [1 ]
机构：
[1] College of Shipbuilding Engineering, Harbin Engineering University, Harbin
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2024年 / 45卷 / 01期
关键词：
approximation model; collaborative optimization method; coupling relationship; design parameter; multidisciplinary and multiobjective optimization; objective functions; optimization framework; parametric analysis process; pressurized cylindrical shell;
D O I：
10.11990/jheu.202201042
中图分类号：
学科分类号：
摘要：
To improve the design efficiency and structural performance of the pressurized cylindrical shell, the multidisciplinary design optimization (MDO) of the pressurized cylindrical shell was decomposed to determine the MDO design parameters and the coupling relationship between the design variables. The parametric analysis of the pressurized cylindrical shell was designed, and the sensitivity of the design variables was analyzed. Based on the approximation model of a pressurized cylindrical shell with high fitting precision established using a response surface model, with the weight displacement ratio and ultimate load as the objective functions, a multidisciplinary and multiobjective optimization model for the pressurized cylindrical shell based on collaborative optimization was established. Therefore, the optimized solution method of the system layer and the discipline layer was determined, and a multidisciplinary and multiobjective optimization framework of the pressurized cylindrical shell based on collaborative optimization was further designed to optimize the solution, thereby obtaining the optimization scheme. The comparison with the initial scheme showed that some schemes in the Pareto solution set were optimized on two objective functions, which verifies the effectiveness of the optimization framework. © 2024 Editorial Board of Journal of Harbin Engineering. All rights reserved.
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页码：62 / 69
页数：7
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