Topology optimization for pressure loading using the boundary element-based moving morphable void approach

•A novel approach for the topology optimization problem with pressure load is developed.•The moving load boundary can be traced without predefined identification scheme.•Numerical instabilities can be naturally avoided from the use of fixed meshes. This paper presents an approach for the topology op...

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Bibliographic Details
Published in:Advances in engineering software (1992) 2024-09, Vol.195, p.103689, Article 103689
Main Authors: Zhang, Weisheng, Tian, Honghao, Sun, Zhi, Feng, Weizhe
Format: Article
Language:English
Subjects:
Boundary element method (BEM)
Moving morphable void (MMV)
Pressure load
Shape optimization
Topology optimization
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Summary:•A novel approach for the topology optimization problem with pressure load is developed.•The moving load boundary can be traced without predefined identification scheme.•Numerical instabilities can be naturally avoided from the use of fixed meshes. This paper presents an approach for the topology optimization problem with pressure load. The approach is constructed by combining Moving Morphable Void (MMV) approach with Boundary Element Method (BEM). In this approach, the pressure boundary is explicitly described using B-spline curves and optimized simultaneously with free boundary. In the current approach, not only the moving load boundary is traced without any predefined identification scheme, but also the pressure load can be applied accurately to the structure without any needs for special load interpolation scheme. Several numerical examples in two dimensions are explored to demonstrate the effectiveness and advantages of the present approach.
ISSN:0965-9978
DOI:10.1016/j.advengsoft.2024.103689