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| Titel: |
Adaptive moving mesh level set method for structure topology optimization |
| Auteur: |
Liu, Zhenyu Korvink, Jan G. |
| Verschenen in: |
Engineering optimization |
| Paginering: | Jaargang 40 (2008) nr. 6 pagina's 529-558 |
| Jaar: |
2008-06 |
| Inhoud: |
The level set method is a promising approach to provide flexibility in dealing with topological changes during structural optimization. Normally, the level set surface, which depicts a structure's topology by a level contour set of a continuous scalar function embedded in space, is interpolated on a fixed mesh. The accuracy of the boundary positions is therefore largely dependent on the mesh density, a characteristic of any Eulerian expression when using a fixed mesh. This article combines the adaptive moving mesh method with a level set structure topology optimization method. The finite element mesh automatically maintains a high nodal density around the structural boundaries of the material domain, whereas the mesh topology remains unchanged. Numerical experiments demonstrate the effect of the combination of a Lagrangian expression for a moving mesh and a Eulerian expression for capturing the moving boundaries. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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