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A Design Methodology for the Prediction of Squeeze Film Stiffness and Damping Characteristics in Hybrid Journal Bearings under Pulsatile Load Conditions.

Kinnear, D., Mishra, Rakesh, Weston, Bill and Padgett, C. (2010) A Design Methodology for the Prediction of Squeeze Film Stiffness and Damping Characteristics in Hybrid Journal Bearings under Pulsatile Load Conditions. International Conference on Renewable Energies and Power Quality (ICREPQ’10) Granada (Spain), 23rd to 25th March, 2010.

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    Abstract

    A theoretical investigation into the prediction and measurement
    of squeeze film stiffness and damping for double hole entry
    hybrid journal bearings has been undertaken together with a
    review of previous work to identify critical bearing parameters.
    The analysis used a partial differentiation of the Poiseuille and
    Hagen-Poiseuille flow equations to develop a mathematical
    model for the bearing squeeze film. A novel transfer function
    between bearing displacement and load enabled bearing
    stiffness and damping coefficients to be obtained from the
    subsequent frequency response characteristics.
    Parameter maps were developed from the model for both
    stiffness and damping and show that the squeeze film stiffness
    is a function of bearing clearance and squeeze film pressure and
    is independent of fluid viscosity with damping being a function
    of viscosity and clearance.

    Item Type: Article
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Automotive Engineering Research Group
    School of Computing and Engineering > Pedagogical Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Machinery Condition and Performance Monitoring Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
    School of Computing and Engineering > Informatics Research Group
    School of Computing and Engineering > Informatics Research Group > XML, Database and Information Retrieval Research Group
    Related URLs:
    Depositing User: Rakesh Mishra
    Date Deposited: 03 Jun 2010 16:51
    Last Modified: 24 Jun 2011 10:02
    URI: http://eprints.hud.ac.uk/id/eprint/7787

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