Options
Gradient Approximation in Flexible Multibody Systems Using a Multigrid Approach
Publikationstyp
Conference Paper
Date Issued
2018-12-17
Sprache
English
Author(s)
Institut
Volume
18
Issue
1
Article Number
e201800439
Citation
Proceedings in applied mathematics and mechanics 18 (1): e201800439 (2018)
Contribution to Conference
Publisher DOI
Publisher
Wiley-VCH
Peer Reviewed
true
The approximation of gradients with a multigrid approach is presented in the framework of flexible multibody systems, in which the flexible bodies are modeled using finite element method. For the cases where the number of design variables are high, for example, in topology optimization where the density of each element is chosen as a design variable, the gradient computation becomes computationally infeasible. The proposed approximation, in which the gradients are computed simultaneously on a fine grid and a coarse grid, can significantly reduce the computation time without hindering the accuracy of the gradients.