期刊
JOURNAL OF MECHANICAL DESIGN
卷 127, 期 2, 页码 170-183出版社
ASME
DOI: 10.1115/1.1814671
关键词
design for manufacturing; assembly synthesis; structural design; genetic algorithms; topology optimization
This paper presents a method for synthesizing multicomponent bean? structural assemblies with maximum structural performance and manufacurability. The problem is posed as a relaxation of decomposition-based assembly synthesis, where both topology, and decomposition of a structure are regarded as variables over a ground structure with nonoverlapping beams. A multiobjective genetic algorithm with graph-based crossover coupled with FEM analyses, is used to obtain Pareto optimal solutions to this problem, exhibiting trade-offs among structural stiffness, total weight, component manufacturability, (size and simplicity), and the number of joints. Case studies with a cantilever and a simplified automotive floor frame are presented, and representative designs in the Pareto front are examined for the trade-offs among the multiple criteria.
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