Measurement of out-of-plane vibrations of a rotating bladed disk using blade tip timing measurement method

D. Di Maio*, D. J. Ewins

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)

Abstract

The Blade Tip-Timing (BTT) method is largely used to measure vibrations of rotating turbomachinery bladed disks under operating conditions. Other measurement methods, for example strain gauges, might be intrusive, or unsuitable because of inadequate optical access such as is required by Scanning Laser Doppler Vibrometer (SLDV) systems which may be commonly used in laboratory-based rotating test rigs. This paper presents the use of BTT method for measuring out-of-plane vibrations of a rotating 24-bladed disk and the design of mechanical components to accommodate BTT probes. Examples of measured data, using both BTT and SLDV system, will be presented.

Original languageEnglish
Title of host publicationEighth International Conference on Vibration Measurements by Laser Techniques
Subtitle of host publicationAdvances and Applications
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications 2008 - Ancona, Italy
Duration: 18 Jun 200820 Jun 2008
Conference number: 8

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7098
ISSN (Print)0277-786X

Conference

Conference8th International Conference on Vibration Measurements by Laser Techniques: Advances and Applications 2008
CountryItaly
CityAncona
Period18/06/0820/06/08

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