The University of Southampton
University of Southampton Institutional Repository

The vibration of an aero-engine rotor incorporating two squeeze-film dampers

The vibration of an aero-engine rotor incorporating two squeeze-film dampers
The vibration of an aero-engine rotor incorporating two squeeze-film dampers
Virtually all previous research on the squeeze-film damping of rotor assemblies has considered the use of only one damper. However, many aero-engine rotor assemblies have at least two dampers and the interplay between them is an important factor in the overall vibration performance of the rotor. The purpose of this paper is to report results on a test facility which simulates the rotor of an aero-engine of the size used to power an executive jet. It draws general conclusions on the application of two squeeze-film dampers (SFDs) to such a rotor, while in the process qualitatively validating a suggested theoretical model of the SFD. The test facility is a three bearing rigid rotor assembly incorporating two sprung bearing supports, each in series with a weakly sealed squeeze-film damper. A range of practical configurations with different SFD static misalignments is studied. Non-linear jump phenomena and subharmonic resonances are demonstrated both experimentally and theoretically for a range of rotor unbalance. The paper is concerned with predicting and measuring rotor-centre responses and vibration orbits and drawing conclusions that are relevant to the designer. It forms a complement to a previous paper (1) in which spectrum analyses of vibration signatures were made.
2041-3025
39-51
Holmes, R.
fdaa2f83-4b4f-4de7-bfe3-d811750c0ebd
Sykes, J.E.H.
657962bc-ac3a-4cc8-87f6-1195ba046ce4
Holmes, R.
fdaa2f83-4b4f-4de7-bfe3-d811750c0ebd
Sykes, J.E.H.
657962bc-ac3a-4cc8-87f6-1195ba046ce4

Holmes, R. and Sykes, J.E.H. (1996) The vibration of an aero-engine rotor incorporating two squeeze-film dampers. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 210 (1), 39-51. (doi:10.1243/PIME_PROC_1996_210_343_02).

Record type: Article

Abstract

Virtually all previous research on the squeeze-film damping of rotor assemblies has considered the use of only one damper. However, many aero-engine rotor assemblies have at least two dampers and the interplay between them is an important factor in the overall vibration performance of the rotor. The purpose of this paper is to report results on a test facility which simulates the rotor of an aero-engine of the size used to power an executive jet. It draws general conclusions on the application of two squeeze-film dampers (SFDs) to such a rotor, while in the process qualitatively validating a suggested theoretical model of the SFD. The test facility is a three bearing rigid rotor assembly incorporating two sprung bearing supports, each in series with a weakly sealed squeeze-film damper. A range of practical configurations with different SFD static misalignments is studied. Non-linear jump phenomena and subharmonic resonances are demonstrated both experimentally and theoretically for a range of rotor unbalance. The paper is concerned with predicting and measuring rotor-centre responses and vibration orbits and drawing conclusions that are relevant to the designer. It forms a complement to a previous paper (1) in which spectrum analyses of vibration signatures were made.

This record has no associated files available for download.

More information

Published date: 1996

Identifiers

Local EPrints ID: 21202
URI: http://eprints.soton.ac.uk/id/eprint/21202
ISSN: 2041-3025
PURE UUID: 6c08843b-f4a0-4a81-8264-5615a7b4cba2

Catalogue record

Date deposited: 20 Aug 2008
Last modified: 15 Mar 2024 06:29

Export record

Altmetrics

Contributors

Author: R. Holmes
Author: J.E.H. Sykes

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×