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Improvement and Application on Response Surface Methodology in Shape Optimization
Author(s): 
Pages: 31-36,64
Year: Issue:  1
Journal: JOURNAL OF BEIJING UNIVERSITY OF TECHNOLOGY

Keyword:  形状优化响应面方法敏度分析;
Abstract: 为了克服了二维连续体形状优化过程中解析敏度求解困难的问题,利用响应面方法将目标函数和约束函数近似显式化,并建立了位移应力约束下的形状优化序列二次规划模型;为了克服响应面方法不够准确的缺点,将响应面方法进行改造,使其在设计点上取精确值;提出了改良的试验设计方法,达到了以较少的结构分析代价构造约束响应面的目的;通过建立二次评价函数,确定了具有自适应能力的运动极限.形成了具有较少计算量和较高逼近精度的优化策略.算例说明这种策略是有效而稳定的.
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