Article (Scientific journals)
Contribution to the optimization of closed-loop multibody systems: Application to parallel manipulators
Collard, Jean-François; Fisette, Paul; Duysinx, Pierre
2005In Multibody System Dynamics, 13 (1), p. 69-84
Peer reviewed
 

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Keywords :
design optimization; penalty; closed-loop multibody systems; parallel manipulators
Abstract :
[en] This paper describes an original and robust method to optimize the design of closed-loop mechanisms, especially parallel manipulators. These mechanisms involve non linear assembling constraints. During optimization, the Newton-Raphson algorithm we use to solve these constraints may fail when the Jacobian matrix of the constraints is ill-conditioned and stops the redesign process. To circumvent the difficulty, the technique we propose takes advantage of numerical conditioning to penalize the objective function. Applications to an academic example and parallel robots demonstrate the capabilities of the methodology.
Disciplines :
Mechanical engineering
Author, co-author :
Collard, Jean-François;  Université Catholique de Louvain - UCL > Department of Mechanical Engineering > CEREM Center for Research in Mechatronics
Fisette, Paul;  Université Catholique de Louvain - UCL > Department of Mechanical Engineering > CEREM Center for Research in Mechatronics
Duysinx, Pierre  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
Language :
English
Title :
Contribution to the optimization of closed-loop multibody systems: Application to parallel manipulators
Publication date :
2005
Journal title :
Multibody System Dynamics
ISSN :
1384-5640
eISSN :
1573-272X
Publisher :
Springer, Dordrecht, Netherlands
Volume :
13
Issue :
1
Pages :
69-84
Peer reviewed :
Peer reviewed
Available on ORBi :
since 25 February 2009

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