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FBW 헬리콥터 모델 역변환 비행제어법칙 설계 및 검증

Design and Validation of Model Inversion Flight Control Law for Fly By Wire Helicopter

  • 투고 : 2012.05.08
  • 심사 : 2012.07.26
  • 발행 : 2012.08.01

초록

우천, 안개 낀 날씨 및 먼지 등에 의해 시계가 확보되지 않는 비행 환경에서의 헬리콥터의 안정성(stability) 및 비행성(flying quality)을 향상시키기 위해 모델 역변환 제어(Model Inversion Control) 방식의 전자식 비행제어시스템(Fly-By-Wire Flight Control System)의 적용은 필수적이다. 선진 항공사인 미국의 Bell-Sikorsky사와 유럽 컴소시움인 NHI(NH Industries)사는 FBW 비행제어시스템을 V-22와 NH-90의 헬리콥터 양산에 적용한 바 있다. 본 논문에서는 BO-105 모델을 기반으로 CONDUIT(Control Designer's Unified Interface)을 활용하여 제자리 비행영역에서 모델 역변환 비행제어법칙을 설계하였으며, 헬리콥터 비행조종성 국제규격인 ADS-33E-PRF을 기준으로 평가하였다. 설계된 비행제어법칙을 CONDUIT과 HETLAS(HElicopter Trim Linearization And Simulation)를 기반으로 평가한 결과, ADS-33E-PRF에서 제시하고 있는 예측 조종성(predicted handling quality) 규격에 대해 비행조종성 Level 1을 만족시킬 수 있었다.

The Fly-By-Wire(FBW) flight control system is essential to improve the stability and flying quality of the helicopter. Advanced aerospace companies, such as Bell-Sikorsky (USA) and NHI (European Consortium), have already applied the FBW flight control system to manufacture V-22 and NH-90 helicopters, respectively. This paper addresses the development of control law design using model inversion method improve the hover and low speed handling qualities of helicopter based on BO-105 model in 'Day' and 'Degraded visual environments(DVEs)' in accordance with ADS-33E-PRF. Design parameters are optimized to satisfy the handling qualities specification using Control Designer's Unified Interface (CONDUIT) commercial control law software. The result of the analysis based on CONDUIT and non-real time simulation in-house software, HETLAS (HElicopter Trim Linearization And Simulation) reveals that the provides an efficient mean to achieve Level 1 handling qualities.

키워드

참고문헌

  1. "Impossible to Resist; The Development of Rotorcraft Fly-By-Wire Technology", AHS 60th Annual Forum, 2004
  2. Kenneth H. Landis, Steven I. Glusman, "Development of ADCOS Controllers and Control Law", NASA Contractor Report 177339
  3. Glusman, S.G., et al., ""Handling Qualities Evaluation of the ADOCS Primary Flight Control System,"" American Helicopter Society 42nd Annual Forum, Washington, DC, June 1986.
  4. Landis, K.H., J.M. Davis, C. Dabundo, J.F. Keller,. ""Advanced Flight Control Technology Achievements at Boeing Helicopters,"" International Journal of Control, Vol. 59, No. 1, 1994, pp. 263-290. https://doi.org/10.1080/00207179408923078
  5. Boczar, B., D. Borgstrom, and P. Everett, ""Key Aspects and Attributes of the RAH-66 Comanche Flight Control System,"" American Helicopter Society 55th Annual Forum, Montreal, Canada, 1999.
  6. Tischler, M.B., Blanken, C.L., Cheung, K.K., Swei, S.S.M., Sahasrabudhe, V., and Faynberg, A., "Optimization and Flight Test Results of Modern Control Laws for the UH-60 Black Hawk," American Helicopter Society 4th Decennial Specialists'
  7. Harding, J., Moody, S., Jeram, G., Mansur, M., Tischler, M., "Development of Modern Control Laws for the AH-64D in Hover/Low Speed Flight," Proceedings of the 62nd Annual Forum of the American Helicopter Society, Phoenix, Arizona, May 9-11, 2006.
  8. "Aeronautical Design Standard Performance Specification Handling Qualities Requirements for Military Rotor Craft", ADS-33E-PRF, 21 March, 2000
  9. 윤영훈, 양창덕, 김창주, 조인제, ""헬리콥터 FBW 시스템 개발을 위한 비행역학 프로그램 (HETLAS),"" 한국항공우주학회 2012년 춘계학술 대회, 하이원 리조트, 강원도
  10. "$CONDUIT^{(R)}$ Version 4.1 User's Guide," Raytheon, Report. ITSS 41-071403, Moffet Field, CA, July 2003.
  11. Tischler M. B., "Digital Control of Highly Augmented Combat Rotorcraft" NASA-TM 88346, 1987.

피인용 문헌

  1. A Development and Verification Process of Auto Generated Code for Fly-By-Wire Helicopter Control Law vol.41, pp.6, 2013, https://doi.org/10.5139/JKSAS.2013.41.6.488