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Issue:
Improvement and Application on Response Surface Methodology in Shape Optimization
Author(s):
SUI Yun-kang
,
ZHANG Xuan
,
YU Hui-ping
Pages:
31
-
36,64
Year:
2008
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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