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Flutter of Propeller Blades

Published online by Cambridge University Press:  28 July 2016

J. V. Inglesby
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Summary

An analytical study of the flutter of stalled and unstalled propeller blades is recorded. The flutter of unstalled propeller blades investigated is unstable coupled flexural-torsional oscillation, while the flutter of stalled blades is assumed to be unstable torsional oscillation due to aerodynamical hysteresis, which is Studer's theory of stalled flutter.

A method of estimating critical speeds, which is within the scope of Stress Office work, is proposed and examples given.

The observed and calculated flutter speeds of propeller blades are tabulated.

(All statements made and opinions expressed represent the author's own views.)

Type
Research Article
Information
The Aeronautical Journal , Volume 50 , Issue 422 , February 1946 , pp. 98 - 118
Copyright
Copyright © Royal Aeronautical Society 1946

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References

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3. Farren, W. S. Reactions of a Wing, whose Angle of Incidence is Changing Rapidly. R. & M. 1648, January, 1935.Google Scholar
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6. Johnson, F. W. Further Notes on the Flutter of Airscrew Blades. Report No. AS23. Royal Aircraft Establishment, Farnborough, March, 1933.Google Scholar