Multibody Model of a Motorbike with a Flexible Swingarm

Gianni Ferretti
Politecnico Di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria DEIB, Milano, Italy

Bruno Scaglioni
MUSP Lab, Piacenza, Italy

Andrea Rossi
MUSP Lab, Piacenza, Italy

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp14096273

Ingår i: Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Linköping Electronic Conference Proceedings 96:28, s. 273-282

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Publicerad: 2014-03-10

ISBN: 978-91-7519-380-9

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


Considering the specific case of the multibody modelling of a racing motorbike; where the rigid model of the rear swingarm has been replaced with a flexible one; a general approach to flexible multibody systems modelling in Modelica is presented in this paper. In particular; the steps required to generate the model of a flexible body starting from a FEM analysis; performed with commercial packages; are detailed. Simulations results are shown with reference to a sudden braking and to a series of impacts with curbs. In this last case; an unstable behavior occurred when considering the flexible component; which is currently under investigation.


motorcycle dynamics; flexible multibody Systems; finite element method; floating frame of reference; Craig-Bampton method


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