A Modified Volumetric Penalization Method for Gray Elements Suppression

Ming Li; Wen Cheng Tang

doi:10.4028/www.scientific.net/AMM.235.25

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 235A Modified Volumetric Penalization Method for Gray...

A Modified Volumetric Penalization Method for Gray Elements Suppression

Abstract:

The volumetric penalization approach is an important method for gray elements suppression in topology optimization. With the volumetric penalization approach, the topology optimization problem is consistent and regularized, and topology description is unambiguous. Considering the fact that an unreasonable topological form of structure is sometimes resulted with the traditional volumetric penalization function, a modified function is proposed. By utilizing the modified function, the gray elements are compelled to be 0 or 1, and the efficiency of optimization solving is also improved. To verify the validity of the modified method, it is compared with the famous volumetric penalization method, SINH method, through a typical example. Simultaneously, its numerical instabilities are also analyzed.

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Periodical:

Applied Mechanics and Materials (Volume 235)

Pages:

25-29

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.235.25

Citation:

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Online since:

November 2012

Authors:

Ming Li, Wen Cheng Tang

Keywords:

Gray Element, SINH Method, Topology Optimization, Volumetric Penalization

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