Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-12-01T07:21:28.530Z Has data issue: false hasContentIssue false
  • English
  • Français

Control techniques for autonomous launching of ship-based unmanned air vehicles (UAVs)

Published online by Cambridge University Press:  04 July 2016

M. R. Crump  and
C. Bil
M. R. Crump
Affiliation:
Sir Lawrence Wackett Centre for Aerospace Design Technology, RMIT University, Melbourne, Australia
C. Bil
Affiliation:
Sir Lawrence Wackett Centre for Aerospace Design Technology, RMIT University, Melbourne, Australia
Get access Rights & Permissions [Opens in a new window]

Abstract

Autonomous shipboard launching of UAVs in a hostile atmospheric environment would greatly extend the usefulness of these aircraft. Currently a majority of UAVs are remotely launched under limited conditions. This paper presents control and guidance strategies that will allow autonomous launching under a much greater set of atmospheric hazards. Two modern control techniques are compared for use in this case. The main problem when dealing with low speed UAVs is found to be high steady winds causing stall. Several strategies are presented that can allow stall to be avoided and recovered.

Type
Research Article
Information
The Aeronautical Journal , Volume 106 , Issue 1057 , March 2002 , pp. 121 - 128
Copyright
Copyright © Royal Aeronautical Society 2002 

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. Anon Flying Qualities of Piloted Airplanes. MIL-F-8785C Military Specification, US Department of Defense, 5 November 1980.Google Scholar
2. Crump, M.R., Riseborough, P. and Bil, C. Dynamic simulation of shipboard launch of surveillance type unmanned air vehicles, IAC 1999, Adelaide Australia, 11–13 September 1999.Google Scholar
3. Crump, M.R., Riseborough, P., Bil, C. and Hill, R. Dynamic control aspects of the shipboard launch of unmanned air vehicles, ICAS 2000, Harrogate, UK, 27 August–1 September 2000.Google Scholar
4. Doyle, J.C., Glover, K., Khargonekar, P.P. and Francis, B.A. State space solutions to standard H2 and H∞ control problems, IEEE Transactions on Automatic Control, 1981, 26, (I1), pp 4–16.Google Scholar
5. Healey, J.V. Establishing a database for flight in the wakes of structures, J Aircr, 1992, 29, (14), pp 559–564.Google Scholar
6. Hope, K.J. Angular Motions of an Australian FFG in rough Seas SS6–7 - Statistics and Spectra, Tech Note 96, Australian Defence Force Academy, 1996.Google Scholar
7. Hyde, R.A. The Application of Robust Control to VSTOL Aircraft, PhD Dissertation, Girton College, Cambridge, UK, 1991.Google Scholar
8. Hyde, R.A., Glover, K. and Shanks, G.T. VSTOL first flight of an H∞ control law, Computing and Control Engineering J, 1995, 6, (II), pp 11–16 Google Scholar
9. Jones, K., Reddy, K. and Toffoletto, R. CFD studies of ship airwake, Proceedings of CTAC, 1997.Google Scholar
10. Liu, J. and Long, L. Higher order accurate ship airwake predictions for the helicopter/ship interface problem, Annual Forum Proceedings – American Helicopter Society, 1998, 1, pp 58–70.Google Scholar
11. Newman, D.M. and Wong, K.C. Six degree-of-freedom flight dynamic and performance simulation of a remotely-piloted vehicle, Aero Tech Note 9301, The University of Sydney, June 1993.Google Scholar
12. Rawson, K.J. and Tupper, E.C. Basic Ship Theory Volume 2, 1983.Google Scholar
13. Skogestad, S. and Postlethwaite, I. Multivahable Feedback Control, 1997.Google Scholar