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Non-Intrusive Measurement of Blade Tip Vibration in Turbomachines PUBLIC ACCESS

[+] Author Affiliations
L. Andrenelli, N. Paone, G. Rossi, E. P. Tomasini

Università di Ancona, Ancona, Italy

Paper No. 91-GT-301, pp. V005T15A012; 7 pages
doi:10.1115/91-GT-301
From:
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7902-3
  • Copyright © 1991 by ASME

abstract

It is discussed the need for non-intrusive monitoring of rotating blade vibration. The advantages over conventional techniques are outlined.

The vibration of a compressor blade has been investigated by strain gages, with particular attention to time evolution of the frequency spectra, at different operating speeds of the machine. These information are fundamental to the correct design of the non-intrusive measurement system.

The non-intrusive measurement technique has been presented, with special attention on uncertainty and resolution. The necessary hardware is discussed and the design of an optical sensor is presented.

Copyright © 1991 by ASME
This article is only available in the PDF format.

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