Article (Scientific journals)
Structural optimization of multibody system components described using level set techniques
Tromme, Emmanuel; Tortorelli, Daniel; Bruls, Olivier et al.
2015In Structural and Multidisciplinary Optimization
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Keywords :
Dynamic response optimization; Flexible multibody systems; Sensitivity analysis; Level set description; Generalized shape optimization
Abstract :
[en] The structural optimization of the components in multibody systems is performed using a fully coupled optimization method. The design’s predicted response is obtained from a flexible multibody system simulation under various service conditions. In this way, the resulting optimization process enhances most existing studies which are limited to weakly coupled (quasi-) static or frequency domain loading conditions. A level set description of the component geometry is used to formulate a generalized shape optimization problem which is solved via efficient gradient-based optimization methods. Gradients of cost and constraint functions are obtained from a sensitivity analysis which is revisited in order to facilitate its implementation and retain its computational efficiency. The optimizations of a slider-crank mechanism and a 2-dof robot are provided to exemplify the procedure.
Disciplines :
Mechanical engineering
Author, co-author :
Tromme, Emmanuel ;  Université de Liège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
Tortorelli, Daniel
Bruls, Olivier  ;  Université de Liège > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques
Duysinx, Pierre  ;  Université de Liège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
Language :
English
Title :
Structural optimization of multibody system components described using level set techniques
Publication date :
July 2015
Journal title :
Structural and Multidisciplinary Optimization
ISSN :
1615-147X
eISSN :
1615-1488
Publisher :
Springer, Berlin-Heidelberg, Germany
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
LIGHTCAR Project sponsored by the pole of competitiveness "Mecatech" and the Walloon Region of Belgium (Contract RW-6500)
Available on ORBi :
since 07 August 2015

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