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	Independent continuous mapping for topological optimization of frame structures
	Sui YK(隋允康) ; Du JZ(杜家政) ; Gao YQ(高银桥)
中文摘要	Based on the Independent Continuous Mapping method (ICM), a topological optimization model with continuous topological variables is built by introducing three filter functions for element weight, element allowable stress and element stiffness, which transform the 0-1 type discrete topological variables into continuous topological variables between 0 and 1. Two methods for the filter functions are adopted to avoid the structural singularity and recover falsely deleted elements: the weak material element method and the tiny section element method. Three criteria (no structural singularity, no violated constraints and no change of structural weight) are introduced to judge iteration convergence. These criteria allow finding an appropriate threshold by adjusting a discount factor in the iteration procedure. To improve the efficiency, the original optimization model is transformed into a dual problem according to the dual theory and solved in its dual space. By using MSC/Nastran as the structural solver and MSC/Patran as the developing platform, a topological optimization software of frame structures is accomplished. Numerical examples show that the ICM method is very efficient for the topological optimization of frame structures.
原文出处	http://dlib.edu.cnki.net/kns50/download.aspx?filename=RVFcV5kVGJEbBtUTBZXU1ZTSNNTdyNTWOVWNQFzc0plYzg1YxYzcXRGMxJFNIJFSLZUW5RlYqhGcJNVR2gjcrQWODxmaWh0KthDThVEU2MnSKpGe0Vkas5WNyl1bZl0d3kEVTd1KEREaxJmbIBTZuRWVrBVa0U3R&tablename=CJFD2009&dflag=pdfdown 全文链接
内容类型	期刊论文
源URL
专题	北京工业大学
推荐引用方式 GB/T 7714	Sui YK,Du JZ,Gao YQ. Independent continuous mapping for topological optimization of frame structures[J].
APA	隋允康,杜家政,&高银桥.
MLA	隋允康,et al."Independent continuous mapping for topological optimization of frame structures".

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