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Proceedings Paper

Analysis of blade vibration frequencies from blade tip timing data
Author(s): Menglin Li; Fajie Duan; Tao Ouyang
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Paper Abstract

Blade tip timing is a non-intrusive technique used for detection, measurement and analysis of blade vibration in rotating blade assemblies. The main recent focus in the application of blade tip timing system has been the determination of blade vibration frequencies. Although the fundamentals of the technique are fully developed, the analysis of data obtained in the presence of simultaneous excitation response is problematic. A number of methods have been introduced for the analysis of blade tip timing data from assemblies undergoing synchronous excitation or asynchronous vibration, each of them has its inherent limitation in practice. The approaches to the analysis of blade tip timing data were presented with its theoretical principle and application requirement. Several of the techniques were found to perform effectively on asynchronous resonances or synchronous resonances, with accurate vibration frequency estimates yielded.

Paper Details

Date Published: 31 December 2010
PDF: 8 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75445F (31 December 2010); doi: 10.1117/12.885360
Show Author Affiliations
Menglin Li, Tianjin Univ. (China)
Fajie Duan, Tianjin Univ. (China)
Tao Ouyang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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