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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/3338

Title: Rotor vibration measurements using laser Doppler vibrometry: essential post-processing for resolution of radial and pitch/yaw vibrations
Authors: Halkon, Ben J.
Rothberg, Steve
Keywords: Laser Doppler vibrometry
Vibration measurement
Rotating machinery
Issue Date: 2006
Publisher: © ASME
Citation: HALKON, Ben J. and ROTHBERG, S., 2006. Rotor vibration measurements using laser Doppler vibrometry: essential post-processing for resolution of radial and pitch/yaw vibrations. Journal of Vibration and Acoustics: Transactions of the ASME, 128, pp. 8-20.
Abstract: Background: Laser Doppler vibrometry is now a well established technique enabling noncontact vibration measurements in the most challenging of environments. Rotor vibration measurements are often highlighted as a major application of Laser Vibrometers due to their non-contact operation and inherent immunity to shaft run-out. Method of Approach: In such measurements, resolution of the individual axial and torsional vibration components is possible via particular arrangement of the laser beam(s). Resolution of the radial or pitch / yaw vibration components, however, can only be achieved by essential post-processing of the data from simultaneous orthogonal measurements. Results: This paper describes the principle and rigorous examination of a novel, dedicated resolution algorithm enabling, for the first time, real-time post-processing of the outputs from standard commercial instruments. Conclusions: The system performed well, even in the presence of noise and other typical measurement errors, and was implemented successfully in an engine vibration study.
Description: This paper was published in the journal, Journal of Vibration and Acoustics: Transactions of the ASME [© 2006 by ASME]. The definitive version is available from: http://store.asme.org/Default.asp?cookie_test=1 This paper is for reference only. Anyone who wishes to use any part of this article must contact ASME for permission at permissions@asme.org.
URI: https://dspace.lboro.ac.uk/2134/3338
ISSN: 1528-8927
1048-9002
Appears in Collections:Published Articles (Mechanical and Manufacturing Engineering)

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