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Non-parametric geometry patching technique for MMC topology optimization

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Abstract

MMC is one of the topology optimization methods that provides explicit boundary description of the optimized topology. However, due to the inherent nature of MMC, the obtained geometry could exhibit distinct local singularities. To cope with this issue, a non-parametric geometry patching technique for MMC is developed. A moving node patching technique for both 2D and 3D cases is developed in conjunction with MMC to obtain structures with smooth boundaries. Numerical examples in 2D and 3D are presented to demonstrate the effectiveness of the proposed approach.

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Acknowledgements

The financial support from the Foundation for Innovative Research Groups of the National Natural Science Foundation (11821202), the National Natural Science Foundation (12272075), Liao Ning Revitalization Talents Program (XLYC2001003, XLYC1907119), Fundamental Research Funds for the Central Universities (DUT22QN238), Program for Changjiang Scholars, Innovative Research Team in University (PCSIRT), and 111 Project (B14013) are gratefully acknowledged.

Funding

The National Natural Science Foundation, 12272075 and the Foundation for Innovative Research Groups of the National Natural Science Foundation, 11821202.

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Authors and Affiliations

  1. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian, 116023, People’s Republic of China

    Weisheng Zhang, Shengqi Zhang, Sung-Kie Youn & Xu Guo

  2. Ningbo Institute of Dalian University of Technology, No.26 Yucai Road, Jiangbei District, Ningbo, 315016, China

    Weisheng Zhang & Xu Guo

  3. Department of Mechanical Engineering, KAIST, 291 Daehakro, Daejeon, 34141, Republic of Korea

    Sung-Kie Youn

Authors
  1. Weisheng Zhang
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  2. Shengqi Zhang
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  3. Sung-Kie Youn
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  4. Xu Guo
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Contributions

WSZ proposed the idea and wrote the main manuscript text. SQZ contributed to coding. SKY improved the manuscript. XG improved the manuscript. All authors reviewed the manuscript.

Corresponding author

Correspondence to Weisheng Zhang.

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The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Informed consent was obtained from all individual participants included in the study.

Replication of results

The presented results are produced by subroutines using our in-house code Moving Morphable Component-based topology optimization. The code and data for producing the presented results will be made available by request.

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Responsible Editor by Kai James.

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Cite this article

Zhang, W., Zhang, S., Youn, SK. et al. Non-parametric geometry patching technique for MMC topology optimization. Struct Multidisc Optim 67, 77 (2024). https://doi.org/10.1007/s00158-024-03789-9

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  • DOI: https://doi.org/10.1007/s00158-024-03789-9

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