Research on improved sensitivity modification method of continuum topology optimization

Jianfeng Zhu; Yi Lin; Xiaokai Chen; Guobiao Shi

doi:10.3969/j.issn.1004-132X.2014.11.016

Research on improved sensitivity modification method of continuum topology optimization

Jianfeng Zhu^*, Yi Lin, Xiaokai Chen, Guobiao Shi

^*Corresponding author for this work

School of Mechanical Engineering

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

2 Citations (Scopus)

Abstract

In order to solve checkerboard pattern problem, a new sensitivity modification technique was deduced to overcome instability phenomena of topology optimization based on the research of common sensitivity filter method. This method was to control filter factor of central element, which will influence the results of topology optimization. The classical compliance minimal numerical example was carried out by the new sensitivity modification method though different functions, the results demonstrate that this method can eliminate checkerboard pattern, mesh dependent and avoid over-averaging in domain.

Original language	English
Pages (from-to)	1506-1510
Number of pages	5
Journal	Zhongguo Jixie Gongcheng/China Mechanical Engineering
Issue number	11
DOIs	https://doi.org/10.3969/j.issn.1004-132X.2014.11.016
Publication status	Published - 10 Jun 2014

Keywords

Checkerboard pattern
Mesh dependence
Sensitivity modification
Topology optimization

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Zhu, J., Lin, Y., Chen, X., & Shi, G. (2014). Research on improved sensitivity modification method of continuum topology optimization. Zhongguo Jixie Gongcheng/China Mechanical Engineering, (11), 1506-1510. https://doi.org/10.3969/j.issn.1004-132X.2014.11.016

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AU - Zhu, Jianfeng

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AU - Chen, Xiaokai

AU - Shi, Guobiao

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N2 - In order to solve checkerboard pattern problem, a new sensitivity modification technique was deduced to overcome instability phenomena of topology optimization based on the research of common sensitivity filter method. This method was to control filter factor of central element, which will influence the results of topology optimization. The classical compliance minimal numerical example was carried out by the new sensitivity modification method though different functions, the results demonstrate that this method can eliminate checkerboard pattern, mesh dependent and avoid over-averaging in domain.

AB - In order to solve checkerboard pattern problem, a new sensitivity modification technique was deduced to overcome instability phenomena of topology optimization based on the research of common sensitivity filter method. This method was to control filter factor of central element, which will influence the results of topology optimization. The classical compliance minimal numerical example was carried out by the new sensitivity modification method though different functions, the results demonstrate that this method can eliminate checkerboard pattern, mesh dependent and avoid over-averaging in domain.

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Research on improved sensitivity modification method of continuum topology optimization

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