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    Eccentric Operation and Blade-Loss Simulation of a Rigid Rotor Supported by an Improved Squeeze Film Damper

    Source: Journal of Tribology:;1995:;volume( 117 ):;issue: 003::page 490
    Author:
    J. Y. Zhao
    ,
    E. J. Hahn
    DOI: 10.1115/1.2831280
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This paper outlines an improved squeeze film damper which reduces significantly the dependence of the stiffness of conventional squeeze film dampers on the vibration amplitudes. This improved damper consists of a conventional squeeze film damper with a flexibility supported outer ring. This secondary flexible support is considered to be massless, and to have a constant stiffness and damping. Assuming the short bearing approximation and the ‘π’ film cavitation model, the performances of this damper in preventing bistable operation and sub-synchronous and nonsynchronous motions are theoretically demonstrated for a rigid rotor supported on a squeeze film damper. Blade-loss simulations are carried out numerically.
    keyword(s): Simulation , Dampers , Rotors , Blades , Stiffness , Vibration , Approximation , Damping , Engineering simulation , Cavitation , Bearings , Plasticity AND Motion ,
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      Eccentric Operation and Blade-Loss Simulation of a Rigid Rotor Supported by an Improved Squeeze Film Damper

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/116010
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    • Journal of Tribology

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    contributor authorJ. Y. Zhao
    contributor authorE. J. Hahn
    date accessioned2017-05-08T23:48:24Z
    date available2017-05-08T23:48:24Z
    date copyrightJuly, 1995
    date issued1995
    identifier issn0742-4787
    identifier otherJOTRE9-28514#490_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/116010
    description abstractThis paper outlines an improved squeeze film damper which reduces significantly the dependence of the stiffness of conventional squeeze film dampers on the vibration amplitudes. This improved damper consists of a conventional squeeze film damper with a flexibility supported outer ring. This secondary flexible support is considered to be massless, and to have a constant stiffness and damping. Assuming the short bearing approximation and the ‘π’ film cavitation model, the performances of this damper in preventing bistable operation and sub-synchronous and nonsynchronous motions are theoretically demonstrated for a rigid rotor supported on a squeeze film damper. Blade-loss simulations are carried out numerically.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleEccentric Operation and Blade-Loss Simulation of a Rigid Rotor Supported by an Improved Squeeze Film Damper
    typeJournal Paper
    journal volume117
    journal issue3
    journal titleJournal of Tribology
    identifier doi10.1115/1.2831280
    journal fristpage490
    journal lastpage497
    identifier eissn1528-8897
    keywordsSimulation
    keywordsDampers
    keywordsRotors
    keywordsBlades
    keywordsStiffness
    keywordsVibration
    keywordsApproximation
    keywordsDamping
    keywordsEngineering simulation
    keywordsCavitation
    keywordsBearings
    keywordsPlasticity AND Motion
    treeJournal of Tribology:;1995:;volume( 117 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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