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Hybrid Viscous-Structural Damping Identification Method

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Vibration Engineering and Technology of Machinery

Part of the book series: Mechanisms and Machine Science ((Mechan. Machine Science,volume 23))

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Abstract

Damping still remains one of the least well-understood aspects of general vibration analysis. The effects of damping are clear, but the characterization of damping is a puzzle waiting to be solved. A major reason for this is that, in contrast with inertia and stiffness forces, it is not clear which state variables are relevant to determine the damping forces. In this paper, a new hybrid viscous-structural damping identification method is proposed. The proposed method is a direct method and gives explicit structural and viscous damping matrices. The effectiveness of the proposed structural damping identification method is demonstrated by two numerical examples. First, numerical study of lumped mass system is presented which is followed by a numerical study of fixed-fixed beam. The effects of coordinate incompleteness and different level of damping are investigated. The results have shown that the proposed method is able to identify accurately the damping of the system.

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Author information

Authors and Affiliations

  1. Institute of Technology and Innovation, University of Southern Denmark, Campusvej 55, 5230, Odense, Denmark

    Vikas Arora

Authors
  1. Vikas Arora
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Correspondence to Vikas Arora .

Editor information

Editors and Affiliations

  1. School of Mechanical, Aerospace and Civil Engineering (MACE), The University of Manchester, Manchester, United Kingdom

    Jyoti K. Sinha

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© 2015 Springer International Publishing Switzerland

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Arora, V. (2015). Hybrid Viscous-Structural Damping Identification Method. In: Sinha, J. (eds) Vibration Engineering and Technology of Machinery. Mechanisms and Machine Science, vol 23. Springer, Cham. https://doi.org/10.1007/978-3-319-09918-7_18

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  • DOI: https://doi.org/10.1007/978-3-319-09918-7_18

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-09917-0

  • Online ISBN: 978-3-319-09918-7

  • eBook Packages: EngineeringEngineering (R0)

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