Multiobjective topology optimization for finite periodic structures

Yuhang Chen; Shiwei Zhou; Qing Li

doi:10.1016/j.compstruc.2009.10.003

Multiobjective topology optimization for finite periodic structures

Yuhang Chen, Shiwei Zhou, Qing Li

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

103 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 language	English
Pages (from-to)	806-811
Number of pages	6
Journal	Computers and Structures
Volume	88
Issue number	11-12
DOIs	https://doi.org/10.1016/j.compstruc.2009.10.003
Publication status	Published - 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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10.1016/j.compstruc.2009.10.003

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title = "Multiobjective topology optimization for finite periodic structures",

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.",

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author = "Yuhang Chen and Shiwei Zhou and Qing Li",

year = "2010",

month = jun,

doi = "10.1016/j.compstruc.2009.10.003",

language = "English",

volume = "88",

pages = "806--811",

journal = "Computers and Structures",

issn = "0045-7949",

publisher = "Elsevier",

number = "11-12",

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TY - JOUR

T1 - Multiobjective topology optimization for finite periodic structures

AU - Chen, Yuhang

AU - Zhou, Shiwei

AU - Li, Qing

PY - 2010/6

Y1 - 2010/6

N2 - 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.

AB - 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.

KW - Topology optimization

KW - Multiobjective

KW - Periodic structure

KW - Sensitivity analysis

KW - Multicomponents

KW - Pareto optimum

KW - LEVEL-SET METHOD

KW - THERMOELASTIC STRUCTURES

KW - OPTIMAL-DESIGN

KW - EVOLUTIONARY PROCEDURE

KW - THICKNESS DESIGN

KW - HOMOGENIZATION

KW - MICROSTRUCTURES

KW - FIELDS

KW - CONDUCTIVITY

KW - MINIMIZATION

U2 - 10.1016/j.compstruc.2009.10.003

DO - 10.1016/j.compstruc.2009.10.003

M3 - Article

SN - 0045-7949

VL - 88

SP - 806

EP - 811

JO - Computers and Structures

JF - Computers and Structures

IS - 11-12

ER -

Multiobjective topology optimization for finite periodic structures

Abstract

Keywords

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