Recursive Solution Procedures for Flexible Multibody Systems: Comparing Condensation and Transfer Matrix Methods

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    In this work two different recursive solution procedures for flexible multibody systems are considered: the condensation method and the transfer matrix method. A comparison between these methods is made based on the equation of motion of an arbitrary 3D linear elastic body, in which the absolute interface coordinates are used as generalized coordinates. To this end, the equation of motion in a floating frame of reference formulation is rewritten in terms absolute interface coordinates for a body that has two interface points. In terms of these absolute coordinates, the condensation method can be given a clear physical interpretation related to added effective mass. This method is compared with a recursive solution procedure based on transfer matrices. This transfer matrix method may have advantages in the case of closed-loop systems and systems that consist of a chain of identical bodies.
    Original languageEnglish
    Title of host publicationECCOMAS Thematic Conference on Multibody Dynamics
    Subtitle of host publicationPrague, June 19-22, 2017 : conference proceedings
    EditorsMichael Valasek, Zbynek Sika, Tomas Vampola
    PublisherCzech Technical University
    Number of pages5
    ISBN (Electronic)978-80-01-6174-9
    ISBN (Print)978-80-01-06173-2
    Publication statusPublished - 19 Jun 2017
    EventMultibody Dynamics 2017: 8th ECCOMAS Thematic Conference - Czech Technical University, Prague, Czech Republic
    Duration: 19 Jun 201722 Jun 2017
    Conference number: 8


    ConferenceMultibody Dynamics 2017
    Country/TerritoryCzech Republic
    Internet address


    • Flexible multibody dynamics
    • Recursive formulations
    • Floating frame of reference
    • Transfer matrix method


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