Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-03T04:59:24.251Z Has data issue: false hasContentIssue false

On the teaching of the principles of wing flexure-torsion flutter

Published online by Cambridge University Press:  04 July 2016

G. J. Hancock
Affiliation:
Department of Aeronautical Engineering, Queen Mary College, University of London
J. R. Wright
Affiliation:
Department of Aeronautical Engineering, University of Bristol
A. Simpson
Affiliation:
Department of Aeronautical Engineering, University of Bristol

Extract

This note attempts to clarify some basic ideas, and correct some common misunderstandings, on wing flexure-torsion flutter. Topics include:

  • (i) an understanding of the physics of wing flexure-torsion flutter through a number of specific examples,

  • (ii) an examination of the energy interpretation of the physics of flutter, indicating its limited usefulness,

  • (iii) a discussion of the significant differences between wing flexure-torsion flutter and the Duncan flutter engine,

  • (iv) a graphical representation to assess the contribution of various parameter to flutter onset,

  • (v) subcritical response below the critical flutter speed,

  • (vi) some practical wing flutter considerations.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1985 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Broadbent, E. G. Elements of Aero-elasticity. Aeronautical Engineering, 26 1954.Google Scholar
2. Frazer, R. A., Duncan, W. J. and Collar, A. R. Elementary Matrices, Cambridge University Press. 1965.Google Scholar
3. Niblett, T. A Graphical Representation of the Binary Flutter Equations in Normal Co-ordinates. ARC R&M No 3496, 1968.Google Scholar
4. Collar, A. R. and Simpson, A. Matrices and Engineering Dynamics: Programs. Ellis-Horwood (to be published).Google Scholar
5. Simpson, A. The Solution of Large Flutter Problems on Small Computers. The Aeronautical Journal, 88, April 1984 Google Scholar
6. Baldock, J. C. A. The Identification of the Flutter Mechanism from a Large-Order Flutter Calculation. RAE TR 78017, MoD(PE), 1978.Google Scholar
7. Acum, W. E. A. The Comparison of Theory and Experiment for Oscillating Wings. Manual on Aeroelasticity Vol II, AGARD (Circa 1960).Google Scholar