Influence of Weighted Gradients in Topology Optimization of Flexible Multibody Systems

First published in
IUTAM bookseries  
Number in series
42
Start Page
30
End Page
39
Citation
IUTAM Symposium on Optimal Design and Control of Multibody Systems 2022: 30-29
Contribution to Conference
IUTAM Symposium on Optimal Design and Control of Multibody Systems 2022  
Publisher DOI
10.1007/978-3-031-50000-8_3
Scopus ID
2-s2.0-85182486611
Publisher
Springer Nature Switzerland
ISBN
978-3-031-50000-8
978-3-031-49999-9
978-3-031-50001-5
978-3-031-50002-2
This paper deals with a level set-based topology optimization of flexible bodies within flexible multibody systems. The required gradient is provided by an adjoint sensitivity analysis. In this work, a modified Solid Isotropic Material with Penalization (SIMP) method is applied, which helps to avoid numerical issues connected to spurious modes in dynamic problems. Nevertheless, the included parametrization factors lead to a weighted gradient. To test the validity of corresponding optimization results, differently weighted gradients are then used within the topology optimization of a flexible piston rod in a slider-crank mechanism. The obtained results show, among others, the range of appropriate weightings in the studied example.
DDC Class
600: Technology