中国舰船研究2018，Vol.13Issue(1)：46-52,7.DOI:10.3969/j.issn.1673-3185.2018.01.007
加筋圆柱壳开孔围栏肘板拓扑优化设计
Topological optimization of opening fence brackets on ring- stiffened cylindrical shell
宋晓飞 1肖伟 2何其健 2刘均 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]Stress concentration is prone to take place at connections between the opening fence and ring ribs of a ring-stiffened cylindrical shell under external pressure.[Methods]In this paper, a topological optimization method for the brackets that connect the fence to the ring ribs is proposed in order to effectively reduce the local high stress in the brackets.The sub-model technique is used to analyze the stress of the connecting brackets. In the design,the connection brackets are used as design variables and the stress of the shell,fence and ribs are used as constraints. The maximum stress of the bracket is minimized as the objective function. The topology optimization results are engineered to obtain the final form of the brackets.[Results]The calculation results show that brackets of which the panel is partially widened can effectively reduce the stress concentration position of the opening fence transverse offset if the side of the bracket away from the longitudinal section is longer;the opening fence is offset relative to the brackets,and the symmetrical design of the brackets is feasible.[Conclusions]This research provides a reference for similar structural design.关键词
加筋圆柱壳/开孔围栏/肘板/子模型/拓扑优化Key words
ring-stiffened cylindrical shell/opening fence/bracket/sub-modeling/topological optimization分类
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宋晓飞,肖伟,何其健,刘均,程远胜..加筋圆柱壳开孔围栏肘板拓扑优化设计[J].中国舰船研究,2018,13(1):46-52,7.
