Recent Blade Vibration Techniques

[+] Author and Article Information
E. K. Armstrong

Bristol Siddeley Engines Limited, Bristol, England

J. Eng. Power 89(3), 437-444 (Jul 01, 1967) (8 pages) doi:10.1115/1.3616710 History: Received September 01, 1966; Online August 25, 2011


The methods which have been used recently to predict the amplitudes of vibration of compressor blades are explained. Examples for resonances with maldistributions in the intake flow and downstream blockages are given. Two techniques of obtaining blade vibration data from the HP shaft of a two-shaft jet engine are described. By comparing the measured amplitudes with the fatigue properties of blading, a parameter has been established which is used in assessing the seriousness of a vibration when considering its service life.

Copyright © 1967 by ASME
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