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 unbalanc...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
2002.
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| Subjects: | |
| Online Access: | Get fulltext |
| LEADER | 01106 am a22001453u 4500 | ||
|---|---|---|---|
| 001 | 22084 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Siew, C.C. |e author |
| 700 | 1 | 0 | |a Hill, M. |e author |
| 700 | 1 | 0 | |a Holmes, R. |e author |
| 245 | 0 | 0 | |a Evaluation of various fluid-film models for use in the analysis of squeeze film dampers with a central groove |
| 260 | |c 2002. | ||
| 856 | |z Get fulltext |u https://eprints.soton.ac.uk/22084/1/Groove-formatted.pdf | ||
| 520 | |a 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. | ||
| 655 | 7 | |a Article | |