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Bilateral Filter for the Optimization of Composite Structures

Yuhang Huo1, Ye Tian1, Shiming Pu1, Tielin Shi1, Qi Xia1,2,*
1 State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, China
2 State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, China
* Corresponding Author: Qi Xia. Email:
(This article belongs to this Special Issue: New Trends in Structural Optimization)

Computer Modeling in Engineering & Sciences 2021, 127(3), 1087-1099. https://doi.org/10.32604/cmes.2021.015694

Received 06 January 2021; Accepted 08 March 2021; Issue published 24 May 2021

Abstract

In the present study, we propose to integrate the bilateral filter into the Shepard-interpolation-based method for the optimization of composite structures. The bilateral filter is used to avoid defects in the structure that may arise due to the gap/overlap of adjacent fiber tows or excessive curvature of fiber tows. According to the bilateral filter, sensitivities at design points in the filter area are smoothed by both domain filtering and range filtering. Then, the filtered sensitivities are used to update the design variables. Through several numerical examples, the effectiveness of the method was verified.

Keywords

Design optimization; composite structure; fiber angle optimization; bilateral filtering; Shepard interpolation; manufacturability constraints

Cite This Article

Huo, Y., Tian, Y., Pu, S., Shi, T., Xia, Q. (2021). Bilateral Filter for the Optimization of Composite Structures. CMES-Computer Modeling in Engineering & Sciences, 127(3), 1087–1099.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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