一种基于智能布点技术的空间映射近似模型方法及其在拉延筋设计优化中的应用  

An Intelligent Sampling Based Space Mapping Metamodeling Technique and Application for Drawbead Design

作　　者：李恩颖[1] 李光耀[1] 

机构地区：[1]湖南大学汽车车身先进设计与制造国家重点实验室,长沙410082

出　　处：《中国机械工程》2009年第14期1741-1745,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助重点项目(60635020);教育部长江学者创新团队计划项目(531105050037);教育部新世纪优秀人才支持计划项目(NCET-04-0766)

摘　　要：针对近似模型在非线性优化技术中应用的技术瓶颈,对基于设计变量的空间映射方法进行了修正,提出了基于响应函数的近似模型构造方法。结合先进的智能布点技术,构建了针对大规模非线性优化问题的求解体系。为了验证算法的性能,将该方法应用于薄板冲压成形体系中的拉延筋设计,得到了令人满意的结果。According to the technical bottleneck of the metamodeling technique and potential drawbacks of design variable-- based space mapping algorithms, the response-- based space mapping metamodeling technique was suggested herein. To improve the efficiency of the suggested metamodeling technique, an intelligent sampling scheme was integrated in the proposed system. In order to validate the performance of the proposed method, the intelligent sampling--based space mapping metamodeling technique was applied successfully for drawbead design in sheet forming optimization.

关 键 词：空间映射 近似模型技术 智能布点 板料成形 

分 类 号：TG113.26[金属学及工艺—物理冶金] TP802[金属学及工艺—金属学]