Evaluation of various fluid-film models for use in the analysis of squeeze film dampers with a central groove
Evaluation of various fluid-film models for use in the analysis of squeeze film dampers with a central groove
Experimental vibration responses of squeeze film dampers (SFDs) are obtained with four different central groove depths, two types of lubricant and various unbalance levels. Highly non-linear fluid stiffness and damping are observed, the damping being sensitively related to oil viscosity and unbalance. Existing oil film models are applied to predict the SFD behaviour. A special groove-two land model is able to predict the vibration behaviour of a very shallow grooved SFD and the conventional two-land theory is applicable to a SFD with a very deep groove. These observations provide useful guidelines for designing a shallow or deep grooved SFD-rotor assembly.
squeeze film damper, rotor dynamic, oil film bearing, vibration response
533-547
Siew, C.C.
7f3d92bc-eeef-4244-b070-07da10a899ad
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
Holmes, R.
fdaa2f83-4b4f-4de7-bfe3-d811750c0ebd
2002
Siew, C.C.
7f3d92bc-eeef-4244-b070-07da10a899ad
Hill, M.
0cda65c8-a70f-476f-b126-d2c4460a253e
Holmes, R.
fdaa2f83-4b4f-4de7-bfe3-d811750c0ebd
Siew, C.C., Hill, M. and Holmes, R.
(2002)
Evaluation of various fluid-film models for use in the analysis of squeeze film dampers with a central groove.
Tribology International, 35 (8), .
(doi:10.1016/S0301-679X(02)00048-8).
Abstract
Experimental vibration responses of squeeze film dampers (SFDs) are obtained with four different central groove depths, two types of lubricant and various unbalance levels. Highly non-linear fluid stiffness and damping are observed, the damping being sensitively related to oil viscosity and unbalance. Existing oil film models are applied to predict the SFD behaviour. A special groove-two land model is able to predict the vibration behaviour of a very shallow grooved SFD and the conventional two-land theory is applicable to a SFD with a very deep groove. These observations provide useful guidelines for designing a shallow or deep grooved SFD-rotor assembly.
Text
Groove-formatted.pdf
- Accepted Manuscript
More information
Published date: 2002
Additional Information:
Received 4 December 2001; revised 1 May 2002; accepted 3 May 2002. Available online 29 August 2002.
Keywords:
squeeze film damper, rotor dynamic, oil film bearing, vibration response
Identifiers
Local EPrints ID: 22084
URI: http://eprints.soton.ac.uk/id/eprint/22084
ISSN: 0301-679X
PURE UUID: 0231be7c-e289-466d-90a9-478a2e00cacb
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Date deposited: 21 Mar 2006
Last modified: 16 Mar 2024 02:41
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Author:
C.C. Siew
Author:
R. Holmes
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