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Topological Optimization of Continuum Structure Under Stress Constraints
Author(s): 
Pages: 301-305
Year: Issue:  4
Journal: JOURNAL OF BEIJING UNIVERSITY OF TECHNOLOGY

Keyword:  优化拓扑连续体力学应力分析;
Abstract: 为了研究应力约束下连续体结构拓扑优化问题,利用独立、连续、映射方法,对单元质量和许用应力采用不同的过滤函数,建立了以质量为目标,应力约束下的连续体结构拓扑优化模型.引入了新的删除准则,利用二分法得到了自适应的删除率,减少了迭代次数,提高了求解效率.并在MSC/Patran&Nastran软件的开发平台上实现了该算法,分析了结构在拓扑优化前后的应力分布.二维和三维数值算例表明该算法具有可行性和有效性.
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