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Vibration measurements on rotating machinery using laser doppler velocimetry
journal contribution
posted on 2011-09-21, 12:30 authored by Steve Rothberg, Neil A. HalliwellThis paper explores the use of laser vibrometry for vibration measurement directly from a rotating component. The presence of a surface velocity component due to the rotation itself is shown to create a strong measurement dependency on vibration perpendicular to the intended measurement direction. Particular ambiguity results at synchronous frequencies. A mathematical means to resolve the genuine vibration components from two simultaneous laser vibrometer measurements is presented and shown to be effective in the study of nonsynchronous rotor vibrations.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
ROTHBERG, S. and HALLIWELL, N.A., 1994. Vibration measurements on rotating machinery using laser doppler velocimetry. American Society of Mechanical Engineers (ASME) Journal of Vibration and Acoustics, 116 (3) pp. 326-331.Publisher
© The American Society of Mechanical EngineersVersion
- NA (Not Applicable or Unknown)
Publication date
1994Notes
This article was published in the journal, Journal of Vibration and Acoustics [© The American Society of Mechanical Engineers] and the definitive version is available at: http://dx.doi.org/10.1115/1.2930432ISSN
1048-9002Publisher version
Language
- en