Multiobjective topology optimization for finite periodic structures

Yuhang Chen, Shiwei Zhou, Qing Li

Research output: Contribution to journalArticlepeer-review

73 Citations (Scopus)

Abstract

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. (C) 2009 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)806-811
Number of pages6
JournalComputers and Structures
Volume88
Issue number11-12
DOIs
Publication statusPublished - Jun 2010

Keywords

  • Topology optimization
  • Multiobjective
  • Periodic structure
  • Sensitivity analysis
  • Multicomponents
  • Pareto optimum
  • LEVEL-SET METHOD
  • THERMOELASTIC STRUCTURES
  • OPTIMAL-DESIGN
  • EVOLUTIONARY PROCEDURE
  • THICKNESS DESIGN
  • HOMOGENIZATION
  • MICROSTRUCTURES
  • FIELDS
  • CONDUCTIVITY
  • MINIMIZATION

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