Optimization design and numerical verification of the cross-sectional layout of an umbilical based on the genetic algorithm

被引：0
|
作者：
Yang Z.-X. [1 ]
Yin X. [2 ]
Yan J. [2 ]
Fan Z.-R. [2 ]
Shi D.-Y. [1 ]
Tian G. [1 ]
Cao D.-H. [1 ]
机构：
[1] College of Mechanical and Electronic Engineering, Harbin Engineering University, Harbin
[2] Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian
来源：
Chuan Bo Li Xue/Journal of Ship Mechanics | 2024年 / 28卷 / 05期
关键词：
cross-sectional layout; genetic algorithm; numerical simulation; optimization design; umbilical cable;
D O I：
10.3969/j.issn.1007-7294.2024.05.009
中图分类号：
学科分类号：
摘要：
A marine umbilical is usually bundled by different functional components, the mechanical properties of which are very different. Under the action of external load, unreasonable cross-sectional layouts may lead to large cross-sectional deformation and contact pressure between components, thus affecting the umbilical service life. Firstly, a method to realize the compactness of cross-section layout was given by minimizing the cross-section radius. The symmetry of cross-sectional layout was described by introducing virtual gravity index based on the tensile stiffness of components while a quantifiable index was proposed to describe the fatigue wear problem between vulnerable components like steel pipes. Then, the multi-objective optimization model of cross-section layout was established considering the above three objectives. The genetic algorithm was introduced to solve the optimization model and three representative cross-section layouts were automatically obtained. Finally, the numerical simulation was used to verify and evaluate the different cross-sectional layouts, and then the optimal cross-section layout design was obtained. The results show that the optimization method proposed in this paper can improve the ability of global optimization, which has certain guiding significance for the cross-sectional layout design of umbilicals. © 2024 China Ship Scientific Research Center. All rights reserved.
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页码：725 / 734
页数：9
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