中国舰船研究2018，Vol.13Issue(1)：24-30,7.DOI:10.3969/j.issn.1673-3185.2018.01.004
纵横加筋圆锥壳振动特性多目标优化设计
Multi- objective optimization design for vibration characteristics of longitudinal and transverse stiffened conical shells
刘东 1王春旭 2刘均 1张攀 1程远胜1
作者信息
- 1. 华中科技大学船舶与海洋工程学院,湖北武汉430074
- 2. 中国舰船研究设计中心,湖北武汉430064
- 折叠
摘要
Abstract
[Objectives]In order to improve the overall bending mode frequency of the structure and reduce the acceleration level at the end of the stiffened cone in the low frequency range,a mathematical model of a multi-objective optimization design for the vibration characteristics of a stiffened conical shell is established.[Methods]Finite element software ANSYS is used to model a vertical and horizontal stiffened conical shell.The vibration modal frequency and structural response under the vertical downward unit concentrated force at the end of the stiffened conical shell are analyzed. Based on Matlab,the vibration characteristics of the stiffened conical shell are optimized by a genetic algorithm and the tolerance sorting method.[Results]The results show that with the increase of tolerance and target weight,the acceleration level of the optimal structural scheme decreases. With single objective optimization for the same target value,there can be multiple schemes.[Conclusions]The research results of this paper can provide useful references for the acoustic design of reinforced conical shell structures.关键词
纵横加筋圆锥壳/模态频率/加速度响应/多目标优化/宽容排序法/遗传算法Key words
longitudinal and transverse stiffened conical shells/modal frequency/acceleration response/multi-objective optimization/tolerance sorting method/genetic algorithm分类
交通工程引用本文复制引用
刘东,王春旭,刘均,张攀,程远胜..纵横加筋圆锥壳振动特性多目标优化设计[J].中国舰船研究,2018,13(1):24-30,7.
