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Aeroelastic Problems in connection with High-Speed Flight

Published online by Cambridge University Press:  28 July 2016

E. G. Broadbent*
Affiliation:
Royal Aircraft Establishment, Farnborough

Summary

A review is given of developments in the field of aeroelasticity during the past ten years. The effect of steadily increasing Mach number has been two-fold: on the one hand the aerodynamic derivatives have changed, and in some cases brought new problems, and on the other hand the design for higher Mach numbers has led to thinner aerofoils and more slender fuselages for which the required stiffness is more difficult to provide. Both these aspects are discussed, and various methods of attack on the problems are considered. The relative merits of stiffness, damping and massbalance for the prevention of control surface flutter are discussed. A brief mention is made of the recent problems of damage from jet efflux and of the possible aeroelastic effects of kinetic heating.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1956

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References

1. Collar, A. R. (1947). Aeroelastic Problems at High Speed. Journal of the Royal Aeronautical Society, January 1947.CrossRefGoogle Scholar
2. Smilg, B. (1946). The Prevention of Aileron Oscillations at Transonic Airspeeds. Paper at the International Congress of Applied Mathematics, Paris. September 1946.Google Scholar
3. Collar, A. R. and Broadbent, E. G. (1945). The Rolling Power of an Elastic Wing. R. & M. 2186. October 1945.Google Scholar
4. Broadbent, E. G. (1950). The Rolling Power of an Elastic Swept Wing. R.& M. 2857. July 1950.Google Scholar
5. Radok, J. M. (1952). Aileron Reversal and Divergence of Swept Wings with Special Consideration of the Relevant Aerodynamic and Elastic Characteristics. College of Aeronautics Report 55. March 1952.Google Scholar
6. Williams, D. Solution of Aero-elastic Problems by means of Influence Coefficients. Unpublished M.O.S. Report.Google Scholar
7. Multhopp, H. Methods for Calculating the Lift Distribution of Wings. Unpublished M.O.S. Report.Google Scholar
8. Williams, D. (1947). Some Novel Structural Properties of Stressed Skin Wings. Proceedings of the Anglo- American Aeronautical Conference. London. 1947.Google Scholar
9. Hill, G. T. R. (1951). Advances in Aircraft Structural Design. Proceedings of the Anglo-American Aeronautical Conference. Brighton, September 1951.Google Scholar
10. Lambourne, N. C. (1952). On the Condition Under which Energy can be Extracted from an Airstream by an Oscillating Aerofoil. Aeronautical Quarterly 1952.Google Scholar
11. Garrick, I. E. (1951). Some Research on High Speed Flutter. Proceedings of the Anglo-American Aeronautical Conference. Brighton, September 1951.Google Scholar
12. Collar, A. R., Broadbent, E. G. and Puttick, E. (1946). An Elaboration of the Criterion for Wing Torsional Stiffness. R.& M. 2154. January 1946.Google Scholar
13. Molyneux, W. G. Flutter of Swept and Unswept Wings with Fixed Root Conditions: (1) Wind Tunnel Experiments, (2) Comparison of Experiment and Theory, (3) Wing Torsional Stiffness Criteria. Unpublished M.O.S. Report.Google Scholar
14. Molyneux, W. G. and Ruddlesden, F. Some Flutter Tests on Swept Back Wings using Ground Launched Rockets. Unpublished M.O.S. Report.Google Scholar
15. Broadbent, E. G. (1949). Flutter Problems of High Speed Aircraft. Proceedings of the Anglo-American Aeronautical Conference. New York, June 1949.Google Scholar
16. Gaukroger, D. R. (1952). Wind Tunnel Tests on Symmetrical Flutter of Sweptback Wings including Tailplane Effect. R.& M. 2911. March 1952.Google Scholar
17. Gaukroger, D. R. Wind Tunnel Tests on Effect of a Localised Mass on the Flutter of a Swept Back Wing with Fixed Root. Unpublished M.O.S. Report.Google Scholar
18. Broadbent, E. G. and Kirkby, W. T. (1952). Control Surface Flutter. Journal of the Royal Aeronautical Society, May 1952.Google Scholar
19. Dryden, H. L. and Duberg, J. E. (1955). Aeroelastic Effects of Aerodynamic Heating. AGARD Lecture, Ottawa. June 1955.Google Scholar
20. Burt, M. E. Weight Prediction for Wings of Box Construction. Unpublished M.O.S. Report.Google Scholar