Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-26T21:36:29.623Z Has data issue: false hasContentIssue false
  • English
  • Français

The Influence of Non-linear Longitudinal Aerodynamic Characteristics on the Power Spectral Response of Aircraft to Atmospheric Turbulence

Published online by Cambridge University Press:  07 June 2016

P A T Christopher  and
J M H Dunn
P A T Christopher
Affiliation:
Cranfield Institute of Technology
J M H Dunn
Affiliation:
Delaney Gallay Ltd
Get access

Summary

The power spectral technique has been extended to show the effect of aerodynamic non-linearities on the normal acceleration response of a rigid aircraft in the cruise configuration. Non-linearities in the normal force and pitching moment variations with incidence have been considered. The resulting changes from the linear root-mean-square values of normal acceleration were only 3 to 5½% for a root-mean-square vertical gust velocity of 20 m/s.

Type
Research Article
Information
Aeronautical Quarterly , Volume 24 , Issue 4 , November 1973 , pp. 284 - 294
Copyright
Copyright © Royal Aeronautical Society. 1973

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 Press, H Tukey, J W Power spectral methods of analysis and their application to problems in airplane dynamics. Agard Flight Test Manual, Vol IV, Part IV C (Revised 1963).Google Scholar
2 Zbrozek, J K Atmospheric gusts. Journal of the Royal Aeronautical Society, Vol 69, pp 27-45, January 1965.CrossRefGoogle Scholar
3 Taylor, J Atmospheric turbulence design cases. Proceedings of the AGARD 34th Flight Mechanics Panel Meeting, Marseilles, April 1969.Google Scholar
4 Rice, S O Mathematical analysis of noise. Parts I to IV. Bell Systems Technology Journal, Vol 23, pp 282-332, 1944; Vol 24, pp 46-156, 1945.CrossRefGoogle Scholar
5 Taylor, J Manual on Aircraft Loads, Agardograph 83, Pergamon Press, 1965.Google Scholar
6 Etkin, B Dynamics of Flight, John Wiley, 1959.Google Scholar
7 Christopher, P A T Studies in stability and control analysis of airframes having non-linear aerodynamic characteristics. College of Aeronautics Note Aero. 171, June 1966.Google Scholar
8 Huntley, E Spectral gust alleviation factor. R A E TR 68 182, July 1968.Google Scholar