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Object-oriented modelling of general flexible multibody systems

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  • Gianni Ferretti
  • Alberto Leva
  • Bruno Scaglioni

Abstract

This paper presents a general approach to object-oriented modelling of flexible multibody systems, based on the floating frame of reference (FFR) formulation. The data describing a flexible body can be computed analytically, having defined its shape functions matrices, or calculated by several finite element method (FEM) packages as a result of a modal analysis. By the proposed approach, a modular model is then obtained in an object-oriented language, namely Modelica. This allows to integrate very realistic descriptions of distributed flexibility in multidomain models, with significant advantages for a variety of simulation studies. After describing the general methodology, the paper presents some simulation results, to validate the approach with respect to benchmark cases considered in the literature.

Suggested Citation

  • Gianni Ferretti & Alberto Leva & Bruno Scaglioni, 2014. "Object-oriented modelling of general flexible multibody systems," Mathematical and Computer Modelling of Dynamical Systems, Taylor & Francis Journals, vol. 20(1), pages 1-22, January.
    • Handle: RePEc:taf:nmcmxx:v:20:y:2014:i:1:p:1-22
    DOI: 10.1080/13873954.2013.807433
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