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The fundamentals of body-freedom flutter

Published online by Cambridge University Press:  04 July 2016

LL. T Niblett
LL. T Niblett*
Affiliation:
Materials and Structures Department , Royal Aircraft Establishment, Farnborough
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Summary

The object of this paper is to uncover the nature of the destabilising coupling that is the major cause of body-freedom flutter and to see whether a simple cure for the flutter can be found. To do this frequency-coalesence theory is applied to a simple aircraft. It is shown that the aircraft is liable to flutter if it has a sweptforward wing and a positive ‘tail-off’ cg margin or a sweptback wing and a negative cg margin but a simple cure for the flutter does not appear to exist.

Type
Research Article
Information
The Aeronautical Journal , Volume 90 , Issue 899 , November 1986 , pp. 373 - 377
Copyright
Copyright © Royal Aeronautical Society 1986 

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References

1. Karman, T. V. and Biot, M. A. Mathematical methods in engineering, McGraw-Hill, 1940, 220–228.Google Scholar
2. Niblett, LL. T. A graphical representation of the binary flutter equations in normal co-ordinates, ARC R and M 3496, 1966.Google Scholar
3. Yates, E. C. Jr. Modified-strip-analysis method for predicting wing flutter at subsonic to supersonic speeds, J Aircraft, 1966, 3, 124–128.Google Scholar
4. Niblett, LL. T. Divergence and flutter of swept-forward wings with cross-flexibilities, RAE Technical Report 80047, 1980.Google Scholar
5. Gaukroger, D. R. Wing flutter, AGARD Manual on aeroelasticity, 1960, Part V, Chap 2.Google Scholar
6. Weisshaar, T. A. and Zeiler, T. A. Dynamic stability of flexible forward swept wing aircraft, J Aircraft, 1983, 20, 1014–1020.Google Scholar