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《Journal of Solid Rocket Technology》 2009-06
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Design optimization parameter steering method and its application in SRM design——Design space ascertained arithmetic and quick optimization method

OU Hai-ying,LI Xiao-yu,LI Hong-wei,ZHU Guo-tao(Qingdao Branch,Naval Aeronautical Engineering Institute,Qingdao 266041,China)  
In the design space arithmetic,a coarse design space was assigned first.Then design variable value was adjusted to a "green corridor" that satisfies system restriction through parameter steering mechanism step by step.Finally all variable ranges were gotten,and a design space in effect was ascertained.A quick optimization method by parameter steering based on experimental design and coordinate alternation was proposed.In the method design space was searched roughly with experimental design,and some better design initial points were gotten.Then coordinate alternation thought was applied into optimization process from these initial points.In the process,the design variables optimization order and every variable searching direction were determined with parameter steering method and designers' knowledge and experience.Finally,one or some better design points were gotten.In applying design space arithmetic and quick optimization method to design optimization for some high pressure solid rocket motors,it was found that design space in effect was reduced,and optimization efficiency was improved by 34%.Quick optimization method makes optimization process transparent,so it can be used in the primary design phase of solid rocket motors,to provide many feasible design schemes in a few minutes.
【CateGory Index】: V435
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