Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations

Kari Tammi, Gregory Buckner, Juha Kortelainen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    This paper summarizes the design, fabrication and experimental evaluation of an adjustable squeeze-film damper to control radial vibration on a rotating shaft. Conventional squeeze-film dampers are widely used on high speed rotors to provide radial damping. For this semi-active design, controllability is realized by replacing the conventional damping fluid with a magneto-rheological (MR) fluid. The shear strength of the MR fluid can be adjusted in realtime by manipulating voltage to electromagnets which surround the bearing. Experimental evaluations are conducted on a highspeed (0-10000 rpm) test rig. The results show that the damper has a significant effect on the rotor responses near resonance regions
    Original languageEnglish
    Title of host publicationProceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008)
    Number of pages10
    Publication statusPublished - 2008
    MoE publication typeA4 Article in a conference publication

    Fingerprint

    Rotors
    Fluids
    Bearings (structural)
    Damping
    Electromagnets
    Controllability
    Shear strength
    Fabrication
    Electric potential

    Keywords

    • magneto
    • rheological
    • squeeze
    • film
    • control
    • rotor
    • vibration

    Cite this

    Tammi, K., Buckner, G., & Kortelainen, J. (2008). Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations. In Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008)
    Tammi, Kari ; Buckner, Gregory ; Kortelainen, Juha. / Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations. Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008). 2008.
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    title = "Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations",
    abstract = "This paper summarizes the design, fabrication and experimental evaluation of an adjustable squeeze-film damper to control radial vibration on a rotating shaft. Conventional squeeze-film dampers are widely used on high speed rotors to provide radial damping. For this semi-active design, controllability is realized by replacing the conventional damping fluid with a magneto-rheological (MR) fluid. The shear strength of the MR fluid can be adjusted in realtime by manipulating voltage to electromagnets which surround the bearing. Experimental evaluations are conducted on a highspeed (0-10000 rpm) test rig. The results show that the damper has a significant effect on the rotor responses near resonance regions",
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    author = "Kari Tammi and Gregory Buckner and Juha Kortelainen",
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    booktitle = "Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008)",

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    Tammi, K, Buckner, G & Kortelainen, J 2008, Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations. in Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008).

    Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations. / Tammi, Kari; Buckner, Gregory; Kortelainen, Juha.

    Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008). 2008.

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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    T1 - Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations

    AU - Tammi, Kari

    AU - Buckner, Gregory

    AU - Kortelainen, Juha

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    Y1 - 2008

    N2 - This paper summarizes the design, fabrication and experimental evaluation of an adjustable squeeze-film damper to control radial vibration on a rotating shaft. Conventional squeeze-film dampers are widely used on high speed rotors to provide radial damping. For this semi-active design, controllability is realized by replacing the conventional damping fluid with a magneto-rheological (MR) fluid. The shear strength of the MR fluid can be adjusted in realtime by manipulating voltage to electromagnets which surround the bearing. Experimental evaluations are conducted on a highspeed (0-10000 rpm) test rig. The results show that the damper has a significant effect on the rotor responses near resonance regions

    AB - This paper summarizes the design, fabrication and experimental evaluation of an adjustable squeeze-film damper to control radial vibration on a rotating shaft. Conventional squeeze-film dampers are widely used on high speed rotors to provide radial damping. For this semi-active design, controllability is realized by replacing the conventional damping fluid with a magneto-rheological (MR) fluid. The shear strength of the MR fluid can be adjusted in realtime by manipulating voltage to electromagnets which surround the bearing. Experimental evaluations are conducted on a highspeed (0-10000 rpm) test rig. The results show that the damper has a significant effect on the rotor responses near resonance regions

    KW - magneto

    KW - rheological

    KW - squeeze

    KW - film

    KW - control

    KW - rotor

    KW - vibration

    M3 - Conference article in proceedings

    BT - Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008)

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    Tammi K, Buckner G, Kortelainen J. Magneto-rheological squeeze-film damper for semi-active control of rotor vibrations. In Proceedings of the 9th International Conference on Motion and Vibration Control (MOVIC 2008). 2008