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《Computer Integrated Manufacturing Systems》 2014-09
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Research and implement on parameterized three-level optimization design for mechanical structure

WANG Zong-yan;WU Shu-fang;SU Tie-xiong;FENG Wei;College of Mechanical Engineering and Automation,North University of China;North Energy University of China;  
To solve the problem with high safety coefficient and serious waste of materials in traditional design,based on depth study of algorithm for optimum design,the design method of parameterized three-level optimization of mechanical structure was proposed according to the shortcomings of existing optimization method.Through establishing a unified data management mechanism,the optimization design and parameterized design as well as the topological optimization based on variable-density method and element birth and death technology were combined.The maximum static compliance was defined as the objectives,the volume and balance conditions as the constraint and the small density unit as the killed unit to implement the automatic generation of topology optimization model.The birth and death technology of parameterized CAD model was researched based on topology optimization result,and the automatic generation for topology optimization result CAD model was realized by building key points.The optimization method by combining shape optimization with size optimization and parametric design was researched on this basis.The technology of curve fitting based on moving least-squares methods was applied,which could avoid the disadvantages of structure optimization model update manually in the design process.The automobile steering gear bracket was taken as the example to verify the effectiveness of proposed method.
【Fund】: 山西省科技攻关计划资助项目(20090321024);; 山西省研究生优秀创新资助项目(20113102)~~
【CateGory Index】: TH122
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