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Multidiscipline topology optimization
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DOI：10.1016/S0045-7949(96)00402-6.png)
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摘要
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Topology optimization is used for determining the best layout of structural components to achieve predetermined performance goals. The density method which uses material density of each finite element as the design variable, is employed. Unlike the most common approach which uses the optimality criteria methods, the topology design problem is formulated as a general optimization problem and is solved by the mathematical programming method. One of the major advantages of this approach is its generality; thus it can solve various problems, e.g. multi-objective and multi-constraint problems. In this study, the structural weight is chosen as the objective function and structural responses such as the compliances, displacements and the natural frequencies, are treated as the constraints. The MSC/NASTRAN finite element code is employed for response analyses. One example with four different optimization formulations was used to demonstrate this approach. (C) 1997 Elsevier Science Ltd.
Keyword:
SHAPE OPTIMIZATION
HOMOGENIZATION METHOD
DESIGN
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