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A Study on Design and Validation of Pilot Activated Recovery System to Recover Aircraft Abnormal Attitude, Altitude and Speed

항공기 비정상 자세, 고도 및 속도 회복을 위한 자동회복장치 설계 및 검증에 관한 연구

  • Published : 2008.12.01

Abstract

Relaxed Static Stability(RSS) has been applied to improve flight performance of modern version supersonic jet fighters. Flight control systems are necessary to stabilize an unstable aircraft and to provide adequate handling qualities. Also, flight control systems of modern aircraft employ many safety measure to cope with emergency situations such as a pilot unknown attitude flight conditions of an aircraft in night flight-testing. This situation is dangerous because the aircraft can lose if the pilot not take recognizance of situation. The system called the "Pilot Activated Recovery System" or PARS, provided a pilot initiated automatic maneuver capable of an aircraft recoveries in situations of unusual attitudes, speed and altitude. This paper addresses the concept of PARS with AARS(Automatic Attitude Recovery System), ATCS(Automatic Thrust Control System) and MARES(Minimum Altitude Recovery Estimation System), and this control law is designed by nonlinear control law design process based on model of supersonic jet trainer. And, this control law is verified by real-time pilot evaluation using an HQS(Handling Quality Simulator). The result of evaluation reveals that the these systems support recovery of an aircraft unusual attitude and speed, and improve a safety of an aircraft.

Keywords

References

  1. T. P. Neal and R. E. Smith, 'An inflight investigation to develop system design criteria for fighter airplanes,' Air Force Flight Dynamics laboratory, WPAFB, Ohio, AFFDL TR-70-74, 1970
  2. G. E. Cooper and R. P. Harper, 'The use of pilot rating in the evaluation of aircraft handling qualities,' NASA TN-D 5153, 1969
  3. M. R. Anderson and D. T. Schmidt, 'Closed-loop pilot vehicle analysis of the approach and landing task,' Journal of Guidance and Control, vol. 10, no. 2, pp. 187-194, 1987 https://doi.org/10.2514/3.20201
  4. D. T. McRuer and D. T. Schmidt, 'Pilot-vehicle analysis of multi-axis tasks,' Journal of Guidance and Control, vol. 13, no. 2, pp. 348-355, 1990 https://doi.org/10.2514/3.20556
  5. S. R. Combs, A. P. Sanchez-Chew, and G. J. Tahke, 'Flight management system integration on the F-117A,' AIAA 92-1077, 1992 Aerospace Design Conference, February 3-6, 1992
  6. S. R. Combs, K. G. Gousman and G. J. Tahke, 'Pilot activated automatic recovery system on the F-117A,' AIAA 92-1077, 1992 Aerospace Design Conference, February 3-6, 1992
  7. G. D. Sweriduk, P. K. Menon, and M. L. Steinberg, 'Design of a pilot activated recovery system using genetic search methods,' AIAA, 1999
  8. 김종섭, 황병문, 조인제, '비행제어법칙 설계 및 해석절차에 관한 연구,' 제어.자동화.시스템공학논문지, vol. 11, no. 11, 2005
  9. 김종섭, 황병문, 김성준, 'T-50 세로축 비행제어법칙 설계에 관한 연구,' 제어.자동화.시스템공학논문지, vol. 11, no. 11, 2005
  10. 김종섭, 황병문, 강영신, 'T-50 가로-방향축 비행제어법칙 설계 및 궤환이득의 변화에 따른 항공기 동특성에 관한 연구,' 제어.자동화.시스템공학논문지, vol. 12, no. 7, 2006 https://doi.org/10.5302/J.ICROS.2006.12.7.621
  11. 김종섭, 황병문, 정대희, 김성준, 배명환, '고받음각에서 항공기 이탈 방지를 위한 제어법칙에 관한 연구,' 한국항공우주학회 논문지, vol. 44, no. 7, 2005