Dome Shape Optimization of Composite Pressure Vessels Based on Rational B-Spline Curve and Genetic Algorithm

被引：0
作者：
Abbas Vafaeesefat
机构：
[1] Imam Hussein University,Mechanical Engineering Department
来源：
Applied Composite Materials | 2009年 / 16卷
关键词：
Filament wound vessel; Shape optimization; Genetic algorithm; Tsai-Wu failure criterion; B-spline rational curve;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper presents an algorithm for shape optimization of composite pressure vessels head. The shape factor which is defined as the ratio of internal volume to weight of the vessel is used as an objective function. Design constrains consist of the geometrical limitations, winding conditions, and Tsai-Wu failure criterion. The geometry of dome shape is defined by a B-spline rational curve. By altering the weights of control points, depth of dome, and winding angle, the dome shape is changed. The proposed algorithm uses genetic algorithm and finite element analysis to optimize the design parameters. The algorithm is applied on a CNG pressure vessel and the results show that the proposed algorithm can efficiently define the optimal dome shape. This algorithm is general and can be used for general shape optimization.
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页码：321 / 330
页数：9
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