Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T19:14:38.617Z Has data issue: false hasContentIssue false
  • English
  • Français

Note on the Distortion Characteristics of Swept and Cranked Wings in Relation to Flutter and Other Aeroelastic Phenomena

Published online by Cambridge University Press:  28 July 2016

D. Williams
Get access Rights & Permissions [Opens in a new window]

Summary

The parts played by calculation, and by resonance tests on simplified scale models, in obtaining the normal modes of an aeroplane with wings of unorthodox plan forms are discussed on the basis that the normal modes are the best means of defining the elastic-inertia characteristics of an aircraft for the purpose of flutter investigations.

Methods of simplifying the model for ease and cheapness of construction are put forward.

The radical difference between the effects of shear-lag and of ordinary bending-shear flexibility is described, and an approximate method of allowing for the latter effect is indicated.

Type
Research Article
Information
The Aeronautical Journal , Volume 55 , Issue 482 , February 1951 , pp. 116 - 125
Copyright
Copyright © Royal Aeronautical Society 1951

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. Anderson, R. A. and Houbolt, J. C. (1948). The Effect of Shear-Lag on Bending Vibration of Box-Beams. N.A.C.A. Tech. Note No. 1583, February 1948.Google Scholar
2. Williams, D. (1949). A Simple Method of Allowing for Shear Deflections in Calculating the Vibration Modes and Frequencies of Structures. R.A.E. Report No. Structures 49, August 1949 (to be published).Google Scholar
3. Frazer, R. A. and Duncan, W. J. (1928). The Flutter of Aeroplane Wings. (A.R.C. Monograph). R. & M. 1155, August 1928.Google Scholar