国防科技大学学报2011，Vol.33Issue(1)：11-16,6.
基于参数化建模的车轮形药柱形状优化
Shape Optimization of Wheel Shape Grain Based on Parameterized Modeling
摘要
Abstract
In the proess of SRM (Solid Rocket Motor) grain configuration design, high loading fraction always gives rise to high stress and strain in the grain, and the stucture integrity of grain tums hand to satisfy. To solve this problem, the integration of GA (Genetic Algorithm) and parameterrzed modeling method was applied to shape the optimization of the wheel shape grain. Parameterized finite element analysis model was conatructed by PCL (Patran Command Language), the secondary development tool of MSC. Patran.Based on the model, the finite element mesh could be established and the maximum strain and loading fraction cf grain could be exported when the geometric parameters were given. This made it convenient for GA to call, as a function. A shape optimization of a high loading fraction wheel shape grain was carried out, and the optimal grain was found. The maximum strain of the optimal grain, under low temperature load, was 30％ less than the initial grain's. Meanwhile, the loading fraction remained the same. The results show that the method presented is feasible and available, and it can be applied to SRM grain configuration design of all sorts.关键词
固体火箭发动机/车轮形药柱/形状优化/参数化建模Key words
solid rocket motor/ wheel shape grain/shape optimization/parameterized modeling分类
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李磊,唐国金,段静波,申志彬..基于参数化建模的车轮形药柱形状优化[J].国防科技大学学报,2011,33(1):11-16,6.基金项目
国家部委资助项目 （）
