Reference : Topology Optimization of Structural Components: A Multibody Dynamics-Oriented Approach

	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering Engineering, computing & technology : Electrical & electronics engineering Engineering, computing & technology : Computer science
	To cite this reference:	http://hdl.handle.net/2268/27079

Title :	Topology Optimization of Structural Components: A Multibody Dynamics-Oriented Approach
Language :	English
Author, co-author :	Bruls, Olivier [Université de Liège - ULg > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques >]
	Lemaire, Etienne [Université de Liège - ULg > Département d'aérospatiale et mécanique > Conception géométrique assistée par ordinateur >]
	Duysinx, Pierre [Université de Liège - ULg > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
	Eberhard, Peter [University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany > > > > >]
Publication date :	2009
Main document title :	Proceedings of the Multibody Dynamics ECCOMAS Conference
Publisher :	K. Arczewski, J. Fraczek, M. Wojtyra
Pages :	1-13
Audience :	International
Event name :	Multibody Dynamics ECCOMAS Conference
Event date :	29 June–2 July 2009
Event place (city) :	Warsaw
Event country :	Poland
Keywords :	[en] Topology Optimization, Sensitivity Analysis, Time Integration, SIMP
Abstract :	[en] This work addresses the topology optimization of structural components embedded in multibody systems with large amplitude motions. Generally, topology optimization techniques consider that the structural component is isolated from the rest of the mechanism and use simplified quasi-static load cases to mimic the complex loadings in service. In contrast, this paper proposes an optimization procedure based on the dynamic simulation of the full multibody system with large amplitude motions and elastic deflections. We show that the simulation model, which involves a nonlinear finite element formulation, a time integration scheme and a sensitivity analysis, can be efficiently exploited in an optimization loop. The method is applied to truss structural components. Each truss is represented by a separate structural universe of beams with a topology design variable attached to each one. A SIMP model (or a variant of the power law) is used to penalize intermediate densities. The optimization formulation is stated as the minimization of the mean compliance over a time period or as the minimization of the mean tip deflection during a given trajectory, subject to a volume constraint. In order to illustrate the benefits of the integrated design approach, the case of a two degrees-of-freedom robot arm is developed.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/27079

	File(s) associated to this reference
	Fulltext file(s): File Commentary Version Size Access Restricted access D28_postEd_2009_BrulsEtal_TopologyOptimizationOfStructuralComponents_AMultibodyDynamicsOrientedApproach.pdf Publisher postprint 312.62 kB Request copy

All documents in ORBi are protected by a user license.

 

© ULg Library Network |  Feedback |  ORBi legal notices

Dspace v1.5