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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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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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

PY - 2008

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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