RESEARCH PAPERS: Gas Turbines: Structures and Dynamics

Design and Experimental Characterization of a Nonintrusive Measurement System of Rotating Blade Vibration

[+] Author and Article Information
P. Nava

Nuovo Pignone SpA, Firenze, Italy

N. Paone, G. L. Rossi, E. P. Tomasini

Dipartimento di Meccanica, Università di Ancona, Ancona, Italy

J. Eng. Gas Turbines Power 116(3), 657-662 (Jul 01, 1994) (6 pages) doi:10.1115/1.2906870 History: Received February 12, 1993; Online April 24, 2008


A measurement system for nonintrusive monitoring of rotating blade vibration in turbomachines based on fiber optic sensors is presented. The design of the whole system is discussed; the development of special purpose sensors, their interfacing to the data acquisition system, and the signal processing are outlined. The processing algorithms are tested by software simulation for several possible blade vibrations. Experimental tests performed on different bladed rotors are presented. Results are compared to simultaneous strain gage measurements.

Copyright © 1994 by The American Society of Mechanical Engineers
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