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Configuration optimization for thin structures using level set method

delete2019-03-28
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PRE
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G
Gang‐Won Jang *
S
Sandilya Kambampati
H
Hayoung Chung
H
H. Alicia Kim
DOI:10.1007/s00158-019-02246-2delete
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Abstract

Abstract

En 中文
Level set-based optimization for two-dimensional structural configurations with thin members is presented. A structural domain with thin thickness is defined as a narrow band region on the zero-level contour of the level set function. No additional constraints or penalty functional is required to enforce semi-uniformity in member thickness. Design velocity is calculated on the zero level set, not on domain boundaries, and extended to level set grids in the narrow band. For complicated structural layouts, multiple level set functions are employed. The effectiveness of the proposed method is verified by solving optimization problems of bar configurations. Since no thickness constraints are employed, structurally unfavorable distorted joints seen in other literature do not appear in the results.
Keywords:
Level set method
Thin structures
Configuration optimization
Topology optimization
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Structural and Multidisciplinary Optimization cover
Structural and Multidisciplinary Optimization
IF:
4
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4.8K
Citations:
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Sejong University
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University of California System cover
University of California System
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