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Heaviside projection based topology optimization by a PDE-filtered scalar function

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Abstract

This paper deals with topology optimization based on the Heaviside projection method using a scalar function as design variables. The scalar function is then regularized by a PDE based filter. Several image-processing based filtering techniques have so far been proposed for regularization or restricting the minimum length scale. They are conventionally applied to the design sensitivities rather than the design variables themselves. However, it causes discrepancies between the filtered sensitivities and the actual sensitivities that may confuse the optimization process and disturb the convergence. In this paper, we propose a Heaviside projection based topology optimization method with a scalar function that is filtered by a Helmholtz type partial differential equation. Therefore, the optimality can be strictly discussed in terms of the KKT condition. In order to demonstrate the effectiveness of the proposed method, a minimum compliance problem is solved.

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References

  • Bendsøe MP, Sigmund O (2003) Topology optimization—theory, methods, and applications. Springer, Berlin

    Google Scholar 

  • Bourdin B (2001) Filters in topology optimization. Topology optimization of non-linear elastic structures and compliant mechanisms. Int J Numer Methods Eng 50(9):2143–2158

    Article  MathSciNet  MATH  Google Scholar 

  • Bruns TE, Tortorelli DA (2001) Topology optimization of non-linear elastic structures and compliant mechanisms. Int J Numer Methods Eng 190(26–27):3443–3459

    MATH  Google Scholar 

  • Gersborg-Hansen A, Sigmund O, Haber RB (2005) Topology optimization of channel flow problems. Struct Multidisc Optim 230(3):1615–1488

    MathSciNet  Google Scholar 

  • Gill PE, Murray W, Saunders MA (2007) User’s guide for SNOPT version 7: software for large-scale nonlinear programming. Department of Mathematics, University of California

    Google Scholar 

  • Guest JK, Prevost JH, Belytschko T (2004) Achieving minimum length scale in topology optimization using nodal design variables and projection functions. Int J Numer Methods Eng 61(2):238–254

    Article  MathSciNet  MATH  Google Scholar 

  • Lazarov B, Sigmund O (2009) Sensitivity filters in topology optimisation as a solution to Helmholtz type differential equation. In: 8th world congress on structural and multidisciplinary optimization, vol 1370

  • Olesen LH, Okkels F, Bruus H (2006) A high-level programming-language implementation of topology optimization applied to steady-state Navier–Stokes flow. Int J Numer Methods Eng 265(7):975–1001

    Article  MathSciNet  Google Scholar 

  • Sigmund O (2007) Morphology-based black and white filters for topology optimization. Struct Multidisc Optim 33(4–5):401–424

    Article  Google Scholar 

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Acknowledgement

The authors gratefully acknowledge the encouragement by Ole Sigmund at Technical University of Denmark.

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Correspondence to Atsushi Kawamoto.

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Kawamoto, A., Matsumori, T., Yamasaki, S. et al. Heaviside projection based topology optimization by a PDE-filtered scalar function. Struct Multidisc Optim 44, 19–24 (2011). https://doi.org/10.1007/s00158-010-0562-2

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  • DOI: https://doi.org/10.1007/s00158-010-0562-2

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