Hostname: page-component-77c89778f8-9q27g Total loading time: 0 Render date: 2024-07-18T20:00:19.884Z Has data issue: false hasContentIssue false

An analytical procedure for asymmetric store flutter

Published online by Cambridge University Press:  04 July 2016

J. K. Liu*
Affiliation:
Department of MechanicsZhongshan UniversityGuangzhou, Peoples Republic of China

Abstract

A simple but effective method is presented to analyse the effects of asymmetric external stores on flutter of an aircraft in this paper. The method is a kind of ‘direction derivative’ technique, and can be easily applied to predict whether the asymmetric external stores increase or decrease the flutter speed. By using the present technique the varying tendency of flutter speed can be determined preliminarily. This can be very useful and valuable to the designers at the beginning stage of flutter analysis. The effectiveness of the proposed method is proved analytically.

Type
Technical Note
Copyright
Copyright © Royal Aeronautical Society 1999 

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. Lotze, A. Asymmetric store nutter, AGARD Rpt No 668, July 1978.Google Scholar
2. Liu, J. K., Zhang, X. M., Zhao, L.C. and Fang, T. On mode localization and frequency loci veering of an aircraft model. Proceedings of the International Conference on Structural Dynamics, Vibration, Noise and Control, Hong Kong, Vol 1, 1995, pp 231-234.Google Scholar
3. Liu, H.J., Zhao, L.C. and Chen, J.Y. Asymmetric effects on mode localization of symmetric structures, J Sound and Vibration, 1996, 194, (4), pp 645651.Google Scholar
4. Foughner, J.T. and Bensinger, C.T. F-16 flutter model studies with external wing stores, NASA Langley Research Center, General Dynamics Corporation, October 1977.Google Scholar
5. Sensburg, O., Lotze, A. and Haidl, G. Wing with stores flutter on variable sweep wing aircraft, AGARD Conference Proceedings No 162, October 1974.Google Scholar