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Measurement of Friction Contact Parameters for Nonlinear Dynamic Analysis

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Topics in Modal Analysis I, Volume 5

Abstract

Detailed linear finite element simulations and accurate modal testing techniques ensure a reliable validation of linear dynamic response predictions of engineering structures. The good agreement between simulation and measurement for single components is often diminished when an assembly is considered, since nonlinear effects of the joints influence the response behaviour. To re-establish the agreement between analysis and measurement the nonlinear behaviour must be included in the simulation. Analysis tools are available today to take these nonlinear effects into account which require accurate input parameters, to represent the nonlinear contact interface.

Research at Imperial College London has focused on the reliable measurement of the dynamic friction contact parameters for over a decade. The extraction of the dynamic friction coefficient, μ, and the tangential contact stiffness, kt, requires the measurement of the nonlinear hysteresis loop with a minimum interference from the test rig. A newly developed friction, with a high test accuracy and a large test range will be presented and its behaviour compared to previous data.

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Acknowledgement

The author is grateful to Rolls-Royce Plc. for providing the financial support for this project and for giving permission to publish this work.

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Authors and Affiliations

  1. Imperial College London, Exhibition Road, London, SW7 2AZ, UK

    Christoph W. Schwingshackl

Authors
  1. Christoph W. Schwingshackl
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Correspondence to Christoph W. Schwingshackl .

Editor information

Editors and Affiliations

  1. University of Cincinnati, Cincinnati, 45221, Ohio, USA

    R. Allemang

  2. Michigan Technological University, Houghton, 49931-1295, USA

    J. De Clerck

  3. University Massachusetts Lowell, Lowell, 01854, USA

    C. Niezrecki

  4. Michigan Technological University, Houghton, 49931-1295, USA

    J.R. Blough

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© 2012 The Society for Experimental Mechanics, Inc. 2012

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Schwingshackl, C.W. (2012). Measurement of Friction Contact Parameters for Nonlinear Dynamic Analysis. In: Allemang, R., De Clerck, J., Niezrecki, C., Blough, J. (eds) Topics in Modal Analysis I, Volume 5. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2425-3_16

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  • DOI: https://doi.org/10.1007/978-1-4614-2425-3_16

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4614-2424-6

  • Online ISBN: 978-1-4614-2425-3

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