| 汽车薄壁冲压件焊点的拓扑优化 |
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| 引用本文： | 岳彩锐,隋允康,杜家政,常婧雅,宋阳阳,张雪.汽车薄壁冲压件焊点的拓扑优化[J].计算机工程与应用,2010,46(12):201-203. |
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| 作者姓名： | 岳彩锐 隋允康 杜家政 常婧雅 宋阳阳 张雪 |
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| 作者单位： | 1. 北京工业大学,工程数值模拟中心,北京,100124
2. 北京工业大学,计算机学院,北京,100124 |
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| 基金项目： | 国家自然科学基金No.10872012;;北京市自然科学基金No.3093019;;高校博士点基金项目No.20060005010~~ |
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| 摘 要： | 汽车薄壁冲压件的焊点数量是汽车制造成本的决定性因素，为了降低成本，焊点的拓扑优化逐渐成为人们关注的热点。基于ICM（Independent Continuous Mapping，即独立、连续、映射）方法，将焊点有无的离散拓扑优化问题转化为0，1]区间上的连续优化问题；建立了以结构刚度最大为目标、结构强度为约束的连续拓扑优化模型；采用K-S函数将多目标和多约束问题转化为单目标和单约束问题；运用响应面（RSM）方法将位移和应力转化为设计变量的显式函数，采用序列二次规划（SQP）方法求解优化模型。为了提高求解效率，对优化问题的可并行性进行了分析，搭建并行环境，用C++和Fortran语言开发了焊点优化问题的并行程序。工程实例表明，优化算法和程序是可靠、有效的。
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| 关 键 词： | 拓扑优化 ICM方法 K-S函数 响应面方法 并行计算 |
| 收稿时间： | 2008-10-23 |
| 修稿时间： | 2009-1-14
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Topological optimization of spot-weld for thin-walled punched structures of automobile |
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| YUE Cai-rui,SUI Yun-kang,DU Jia-zheng,CHANG Jing-ya,SONG Yang-yang,ZHANG Xue.Topological optimization of spot-weld for thin-walled punched structures of automobile[J].Computer Engineering and Applications,2010,46(12):201-203. |
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| Authors: | YUE Cai-rui SUI Yun-kang DU Jia-zheng CHANG Jing-ya SONG Yang-yang ZHANG Xue |
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| Affiliation: | 1.Numerical Simulation Center for Engineering,Beijing University of Technology,Beijing 100124,China 2.College of Computer Science,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | The number of spot-weld of thin-walled punched structures of automobile has important impacts on the automotive manufacturing cost.In order to reduce the cost,topological optimization of the spot-weld is becoming a hotspot.Based on the ICM (Independent Continuous Mapping)method,the discrete topological optimization problem about spot-weld's existence or not is transformed into the continuous optimization problem on 0,1].The optimization model is founded with maximizing the structural stiffness as objective... |
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| Keywords: | topological optimization Independent Continuous Mapping（ICM） method K-S function response surface methodology parallel computing |
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