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《Journal of Shandong Institute of Architecture and Engineering》 2003-02
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Topological optimum design of double-decker dpatial lattice shell based on discrete variables

WANG Lei 1, LU Xiao-yang 1,YU Pu-ying 2 (1.Research Insititute of Modern Analysis and Design for Engineering Structure,Shandong University of Architecture and Engineering, Jinan 250014, China;2.Qingdao Mingduyuan Real Estate Development Co.,Qingdao 266200,China)  
Utilizing the overall cost as the objective function, the discrete topological optimum mathematical model of double-decker spatial lattice shell is founded, including three variables, namely size variables of cross sections, volume variables of nodes and topology variables. This model takes into account the coupling relation between size variables of cross sections and topology variables, which reveals the combinatorial optimum nature of the problem of topology optimization. At the same time,adopting the relative difference quotient method and the finite element analysis software-Algor, the double-decker spatial lattice shell based on discrete variables is topologically optimized. Finally,a numerical example is used to test the feasibility and validity of topology optimization method.
【Fund】: 山东省教育厅科研计划项目 (J0 1E0 3)
【CateGory Index】: TU398.9
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