A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation

Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances was developed. The approaches were demonstrat...

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Main Authors: J. Gallego-Garrido, G. Dimitriadis, I. B. Carrington, J. R. Wright
Format: Article
Language:English
Published: Hindawi Limited 2007-01-01
Series:International Journal of Rotating Machinery
Online Access:http://dx.doi.org/10.1155/2007/73624
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spelling doaj-2271557fc1994572a160655202239d2b2020-11-24T23:57:13ZengHindawi LimitedInternational Journal of Rotating Machinery1023-621X1542-30342007-01-01200710.1155/2007/7362473624A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental ValidationJ. Gallego-Garrido0G. Dimitriadis1I. B. Carrington2J. R. Wright3Experimental Vibrations, Rolls-Royce PLC, P.O. Box 31, Derby DE24 8DJ, UKSchool of Mechanical Aerospace and Civil Engineering, The University of Manchester, Simon Building, Oxford Road, Manchester M13 9PL, UKSchool of Mechanical Aerospace and Civil Engineering, The University of Manchester, Simon Building, Oxford Road, Manchester M13 9PL, UKSchool of Mechanical Aerospace and Civil Engineering, The University of Manchester, Simon Building, Oxford Road, Manchester M13 9PL, UKBlade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances was developed. The approaches were demonstrated using data from a mathematical simulation of tip timing data. In Part II the methods are validated on an experimental test rig. First, the construction and characteristics of the rig will be discussed. Then, the performance of the analysis techniques when applied to data from the rig will be compared and analysed. It is shown that accurate frequency estimates are obtained by all the methods for both single and double resonances. Furthermore, the recovered frequencies are used to calculate the amplitudes of the blade tip responses. The presence of mistuning in the bladed assembly does not affect the performance of the new techniques.http://dx.doi.org/10.1155/2007/73624
collection DOAJ
language English
format Article
sources DOAJ
author J. Gallego-Garrido
G. Dimitriadis
I. B. Carrington
J. R. Wright
spellingShingle J. Gallego-Garrido
G. Dimitriadis
I. B. Carrington
J. R. Wright
A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
International Journal of Rotating Machinery
author_facet J. Gallego-Garrido
G. Dimitriadis
I. B. Carrington
J. R. Wright
author_sort J. Gallego-Garrido
title A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
title_short A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
title_full A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
title_fullStr A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
title_full_unstemmed A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part II: Experimental Validation
title_sort class of methods for the analysis of blade tip timing data from bladed assemblies undergoing simultaneous resonances—part ii: experimental validation
publisher Hindawi Limited
series International Journal of Rotating Machinery
issn 1023-621X
1542-3034
publishDate 2007-01-01
description Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. In Part I of this work a class of methods for the analysis of blade tip timing data from bladed assemblies undergoing two simultaneous synchronous resonances was developed. The approaches were demonstrated using data from a mathematical simulation of tip timing data. In Part II the methods are validated on an experimental test rig. First, the construction and characteristics of the rig will be discussed. Then, the performance of the analysis techniques when applied to data from the rig will be compared and analysed. It is shown that accurate frequency estimates are obtained by all the methods for both single and double resonances. Furthermore, the recovered frequencies are used to calculate the amplitudes of the blade tip responses. The presence of mistuning in the bladed assembly does not affect the performance of the new techniques.
url http://dx.doi.org/10.1155/2007/73624
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