Multiobjective topology optimization for finite periodic structures

Many engineering structures consist of specially-fabricated identical components, thus their topology optimizations with multiobjectives are of particular importance. This paper presents a unified optimization algorithm for multifunctional 3D finite periodic structures, in which the topological sens...

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Bibliographic Details
Published in:	Computers & structures 2010-06, Vol.88 (11), p.806-811
Main Authors:	Chen, Yuhang, Zhou, Shiwei, Li, Qing
Format:	Article
Language:	eng
Subjects:	Algorithms Criteria Exact sciences and technology Fundamental areas of phenomenology (including applications) Mathematical analysis Multicomponents Multiobjective Optimization Pareto optimality Pareto optimum Periodic structure Periodic structures Physics Sensitivity analysis Solid mechanics Static elasticity (thermoelasticity...) Structural and continuum mechanics Three dimensional Topology optimization
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Summary:	Many engineering structures consist of specially-fabricated identical components, thus their topology optimizations with multiobjectives are of particular importance. This paper presents a unified optimization algorithm for multifunctional 3D finite periodic structures, in which the topological sensitivities at the corresponding locations of different components are regulated to maintain the structural periodicity. To simultaneously address the stiffness and conductivity criteria, a weighted average method is employed to derive Pareto front. The examples show that the optimal objective functions could be compromised when the total number of periodic components increases. The influence of thermoelastic coupling on optimal topologies and objectives is also investigated.
ISSN:	0045-7949 1879-2243