| 摘要 |
PROBLEM TO BE SOLVED: To disclose improved topology optimization for engineering product design. SOLUTION: An engineering product including a design domain to be optimized is defined. The design domain can be a portion of or the entire engineering product. Design objective and optional constraint are also defined, such that optimization goal can be achieved. Additionally, initial configuration of the design domain is represented by a finite element analysis (FEA) mesh. Each element or element group is associated with a design variable. A set of discrete material models is created from the baseline material used for the design domain. The set of discrete material models is configured to cover entire range of the design variable and each discrete material model represents a non-overlapping portion. Each element representing the design domain is associated with an appropriate discrete material model according to the design variable. Structure response of entire engineering product is obtained via FEA to evaluate design objective and update design variable. COPYRIGHT: (C)2011,JPO&INPIT
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