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Rotor State Feedback in the Design of Rotorcraft Attitude Control Laws

  • Simone PanzaEmail author
  • Marco Lovera

Abstract

Helicopter flight control law design including rotor state feedback (RSF) is considered. A mathematical model suitable for analysis and design of RSF control systems is obtained and a structured H  ∞  approach to the problem is proposed, capable of guaranteeing stability and performance robustness. The framework also encompasses fault tolerance with respect to failures of the rotor state sensors. Simulation results comparing the proposed approach to results obtained using conventional attitude control laws are presented and discussed.

Keywords

Step Response Rotor Dynamic Main Rotor Roll Axis Lateral Axis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Blanken, C.L., Hoh, R.H., Mitchell, D.G., Key, D.L.: Test guide for ADS-33E-PRF. Tech. Rep. AMR-AF-08-07, AMRDEC (2008)Google Scholar
  2. 2.
    ADS-33E-PRF, Aeronautical Design Standard, Performance Specification. Handling Qualities Requirements for Military Rotorcraft (March 2000)Google Scholar
  3. 3.
    Mansur, M.H., Lusardi, J.A., Tischler, M.B., Berger, T.: Achieving the best compromise between stability margins and disturbance rejection performance. In: 65th Annual Forum of the American Helicopter Society, Grapevine, USA (2009)Google Scholar
  4. 4.
    Horn, J.F., Guo, W., Ozdemir, G.T.: Use of rotor state feedback to improve closed-loop stability and handling qualities. Journal of the American Helicopter Society 57(2), 1–10 (2012)Google Scholar
  5. 5.
    Blanken, C.L., Lusardi, J.A., Ivler, C.M., Tischler, M.B., Hofinger, M.T., Decker, W.A., Malpica, C.A., Berger, T., Tucker, G.E.: An investigation of rotorcraft stability-phase margin requirements in hover. In: 65th Annual Forum of the American Helicopter Society, Grapevine, USA (2009)Google Scholar
  6. 6.
    Takahashi, M.D.: Rotor-state feedback in the design of flight control laws for a hovering helicopter. Journal of the American Helicopter Society 39(1), 50–62 (1994)CrossRefGoogle Scholar
  7. 7.
    Tischler, M.B.: System identification requirements for high-bandwidth rotorcraft flight control system design. In: 1991 American Control Conference, Boston, USA (1991)Google Scholar
  8. 8.
    Jr. Hall, W.E., Jr. Bryson, A.E.: Inclusion of rotor dynamics in controller design for helicopters. Journal of Aircraft 10(4), 200–206 (1973)CrossRefGoogle Scholar
  9. 9.
    Ingle, S.J., Celi, R.: Effects of higher order dynamics on helicopter flight control law design. Journal of the American Helicopter Society 39(3), 12–23 (1994)CrossRefGoogle Scholar
  10. 10.
    Ivler, C.M.: Development and comparison of explicit and implicit rotor-state feedback control systems for a fly-by-wire UH-60. In: AHS Rotorcraft Handling Qualities Specialists Meeting, Huntsville, USA (2014)Google Scholar
  11. 11.
    Panza, S., Lovera, M.: Rotor state feedback in helicopter flight control: robustness and fault tolerance. In: IEEE Multi-Conference on Systems and Control, Antibes-Nice, France (2014)Google Scholar
  12. 12.
    Padfield, G.D.: Helicopter flight dynamics: the theory and application of flying qualities and simulation modelling. Blackwell (2007)Google Scholar
  13. 13.
    Skogestad, S., Postlethwaite, I.: Multivariable feedback control: analysis and design. J. Wiley and Sons (1996)Google Scholar
  14. 14.
    Apkarian, P., Noll, D.: Nonsmooth H  ∞  synthesis. IEEE Transactions on Automatic Control 51(1), 71–86 (2006)CrossRefMathSciNetGoogle Scholar
  15. 15.
    Apkarian, P.: Tuning controllers against multiple design requirements. In: American Control Conference, Washington DC, USA (2013)Google Scholar

Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Dipartimento di Scienze e Tecnologie AerospazialiPolitecnico di MilanoMilanoItaly

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