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Comparison of BESO and SIMP to Do Structural Topology Optimization in Discrete Digital Design, and then Combine Them into a Hybrid Method

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Proceedings of the 2019 DigitalFUTURES (CDRF 2019)

Abstract

On account of the high efficiency of discrete digital design when comparing with 3d-printing in the background of additive manufacture, this essay is going to introduce a hybrid high-efficiency method that is combined with BESO and SIMP for solving topology optimization in discrete digital design. The reason is that both BESO in Karamba3D and SIMP in Millipede have some disadvantages and cannot optimize the structure in an extremely efficient way in discrete design. Based on the project TRANSFOAMER (Chen Ran, Chen Zhilin, Shao Gefan, Wei Na, 2016–2017), RC4, Bartlett School of Architecture, loads of tests will be conducted to demonstrate how hybrid method is operated and why it is more efficient than each single method. Finally, the method will be applied to the project to design some productions.

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Notes

  1. 1.

    Nomenclature: FR = Filter radius; ER = Evolution rate; V* = Volume fraction constraint; λα = Sensitivity of element α; λth add = Element sensitivity threshold value (adding); λth del = Element sensitivity threshold value (deleting); ΔSE = change in strain energy; tol = Convergence tolerance, le-5; V* = Volume fraction constraint.

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Authors and Affiliations

  1. Bartlett School of Architecture, University College London, London, WC1H 0QB, UK

    Gefan Shao

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  1. Gefan Shao
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Correspondence to Gefan Shao .

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Editors and Affiliations

  1. College of Architecture and Urban Planning, Tongji University, Shanghai, China

    Philip F. Yuan

  2. School of Engineering, RMIT University, Melbourne, Australia

    Yi Min (Mike) Xie

  3. College of Architecture and Urban Planning, Tongji University, Shanghai, China

    Jiawei Yao

  4. College of Architecture and Urban Planning, Tongji University, Shanghai, China

    Chao Yan

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Shao, G. (2020). Comparison of BESO and SIMP to Do Structural Topology Optimization in Discrete Digital Design, and then Combine Them into a Hybrid Method. In: Yuan, P., Xie, Y., Yao, J., Yan, C. (eds) Proceedings of the 2019 DigitalFUTURES . CDRF 2019. Springer, Singapore. https://doi.org/10.1007/978-981-13-8153-9_18

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