固体火箭技术Issue(4)：490-495,6.DOI:10.7673/j.issn.1006-2793.2014.04.011
基于三维参数化建模的翼柱形发动机药形优化
Optimization of finocyl grain based on the three-dimensional parameterized modeling
摘要
Abstract
Increasing loading fraction is one of the most significant way to promote the total impulse of solid rocket motor ( SRM) ,however,it will give rise to a higher grain stress and strain at the same time,which is obviously harmful to the structural in-tegrity of SRM.In order to solve this problem,one kind of optimization method of SRM based on the three-dimensional parameterized modeling and Genetic Algorithm(GA)was proposed.Firstly,the parameterized model of one finocyl grain were achieved with PCL (Patran Command Language)of MSC.Patran.Then parameter sensitivity analysis of the grain under thermal and pressure loading was conducted.On the basis of all the work mentioned upon,configuration optimization of the grain was realized with the method of GA. On condition that the loading fraction does not decrease,the best grain shape with the minimum Von Mises strain was found. The method proposed in the paper could be used for grain shape optimization of kinds of SRM,which has definite engineering practical value for the improvement of structural integrity of the SRM grain with high loading fraction.关键词
药形优化/结构完整性/体积装填分数/三维参数化建模/灵敏度分析/遗传算法Key words
grain shape optimization/structural integrity/loading fraction/three-dimensional parameterized modeling/sensitivity analysis/GA分类
航空航天引用本文复制引用
张维星,唐国金..基于三维参数化建模的翼柱形发动机药形优化[J].固体火箭技术,2014,(4):490-495,6.基金项目
国家自然科学基金（11272348），国防科技大学科研计划资助项目（ JC13-01-03）。 （）
