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RESEARCH PAPERS

System to Measure the Pressure Distribution on Fan Aerofoil Surfaces During Flutter Conditions

[+] Author and Article Information
John W. H. Chivers

Electronics and Instrumentation Research Group, Rolls-Royce Limited, Derby, England

J. Fluids Eng 102(4), 427-432 (Dec 01, 1980) (6 pages) doi:10.1115/1.3240715 History: Received September 01, 1979; Online October 26, 2009

Abstract

In order to assist in the understanding of high speed flutter, a series of tests has been conducted on a research fan in which the blade surface pressures have been measured by means of miniature silicon diaphragm pressure transducers embedded in selected fan blades. Prior to this investigation a program of rig tests was conducted to examine the effects of centrifugal force and vibration on the transducer performance and a transducer mounting technique was developed to minimize blade induced stress in the transducer. Instantaneous measurements of the tip stagger angles of the pressure instrumented fan blades have enabled a cross correlation to be performed on the blade surface pressure data and the blade tip angles. Some typical test results are shown.

Copyright © 1980 by ASME
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