Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
권호 표지
DOI QR코드

DOI QR Code

Hybrid Control of Aircraft Landing Gear using Magnetorheological Damper

MR댐퍼를 적용한 항공기 착륙장치의 하이브리드 제어기법 연구

  • Tak, Jun Mo (School of Aerospace and Mechanical Engineering, Graduate School at KAU) ;
  • Viet, Luong Quoc (School of Aerospace and Mechanical Engineering, Graduate School at KAU) ;
  • Hwang, Jai-Hyuk (Dept. of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 탁준모 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 루엥 비엣 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 황재혁 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2017.12.01
  • Accepted : 2018.01.24
  • Published : 2018.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, a hybrid control method that adjusts for the existing force control technique has been presented for consideration. The proposed hybrid control technique does away with the chattering phenomenon occurring in existing force control technique and provides high shock absorption efficiency. In order to design the controller for the landing gear with MR damper, the equation of motion of the landing gear was derived. The hybrid controller was designed after constructing a simulation model using Recur-Dyne, multi-body dynamic analysis software. The hybrid controller can reduce the maximum strut force and displacement based on the skyhook controller, and is able to get the high efficiency by making it work for the additional force control technique. In addition, an effective switching control technique and input shaping technique was applied to prevent the chattering in the drop simulation. Finally, the performance of the landing characteristics was evaluated throughout the various drop simulations.

본 연구에서는 기존의 하중제어기법을 보완한 하이브리드 제어기법을 제안하였다. 제안된 하이브리드 제어기법은 기존 하중제어기법에서 발생하는 채터링 현상을 제거하고, 높은 충격흡수효율을 얻을 수 있는 제어기법이다. 제어기 설계를 위해 MR댐퍼가 적용된 착륙장치를 구성하고, 착륙장치의 운동방정식을 유도하였다. 다물체 동역학 해석 소프트웨어인 RecurDyn을 이용하여 시뮬레이션 모델을 구성한 후 하이브리드 제어기를 설계하였다. 본 연구의 하이브리드 제어기는 스카이 훅 제어기를 기반으로 최대 스트럿 하중과 변위를 줄일 수 있으며, 부가되는 하중제어 기법을 통해 고효율의 제어기법을 구현할 수 있다. 채터링 방지를 위해 효율적인 제어기법 스위칭과 입력설계(Input Shaping) 기법을 적용하여 낙하 시뮬레이션을 수행하였고, 각각의 결과를 비교하여 착륙 특성에 대해 성능평가를 수행하였다.

Keywords

References

  1. Z. Wolejsaza, W. Kowalski, A. Lafitte, G, Mikulowski, and L. Remmers, "State of the Art in Landing Gear Shock Absorbers," Prace-Instytutu Lotnictwa, vol. 2, no. 181, 2005.
  2. J. M. Tak, L. Q. Viet, and J. H. Hwang, "Semi-Active Control of Aircraft Landing Gear using Magnetorheological Damper," The Society for Aerospace System Engineering 2017 Fall Conference, pp. 225-227, November 2017.
  3. W. Kruer, "Design and Simulation of Semi-Active Landing Gears for Transport Aircraft," Mechanics of Structures and Machines, vol. 30, no. 4, pp. 493-526,2002. https://doi.org/10.1081/SME-120015074
  4. Y. O. Hyun, "Semi-Active Force Control of Landing Gear using Magneto-Rheological Damper," Ph. D. dissertation, School of Aerospace and Mechanical Engineering, Korea Aerospace University, 2009.
  5. J. H. Park, D. X. Phu, N. Q. Hung, O. H. Kang, and S. H. Choi, "Optimal Design of Magneto-Rheological Mount for Ship Engines : Maximum Damping Force," Transactions of the Korean Society for Noise and Vibration Engineering, vol. 23, no. 5, pp. 472-478, 2013. https://doi.org/10.5050/KSNVE.2013.23.5.472
  6. G. H. Heo, C, G. Kim, and Y. I. Gong, "Performance Evaluation of Seismic Vibration Control of Asymmetrical Cable-Stayed Bridge Using MR Damper," Journal of the Korean Society of Civil Engineers, vol. 34, no. 3, pp. 729-737, 2014. https://doi.org/10.12652/Ksce.2014.34.3.0729
  7. J. H. Park, J. W. Kang, and S. H. Choi, "Design and Analysis of Above Knee Prosthetic Leg Using MR Damper," Transactions of the Korean Society for Noise and Vibration Engineering, vol. 26, no. 2, pp. 165-171, 2016. https://doi.org/10.5050/KSNVE.2016.26.2.165
  8. L. A. Ahure-Powell, "Magnetorheological Fluids and Applications to Adaptive Landing Gear for a Lightweight Helicopter," Ph. D. dissertation, Department of Aerospace Engineering, University of Maryland, 2014.
  9. M. A. Eroglu, "Observer Based Control of an Magnetorheological Damper," Ph. D. dissertation, Department of Mechanical Engineering, University of Sheffield, 2013.
  10. J. U. Hwang, J. H. Hwang, J. S. Bae, and K. H. Lim, "Drop Test Simulation of Semi-active Landing Gear using Commercial Magneto-Rheological Damper," Journal of Aerospace System Engineering, vol. 4, no. 4, pp. 44-48, 2010.
  11. Y. O. Hyun, J. U. Hwang, J. H. Hwang, J. S. Bae, K. H. Lim. D. M. Kim and T. W. Kim, "Force Control of Main Landing Gear using Magneto-Rheological Damper," Journal of the Korean Society for Aeronautical & Space Sciences, vol. 37 no. 4, pp. 344-349, 2009. https://doi.org/10.5139/JKSAS.2009.37.4.344
  12. D. S. Wu, H. B. Gu, and H. Liu, "GA-Based Model Predictive Control of Semi-Active Landing Gear," Chinese Journal of Aeronautics, vol. 20, no. 1, pp. 47-54, 2007. https://doi.org/10.1016/S1000-9361(07)60006-5
  13. J. H. Hwang, S. B. Choi, S. J. Park, "Intelligent Landing Gear with Variable Damping Force for 1500lb Class," Korea Evaluation Institute of Industrial Technology, Annual Report, 2017.
  14. http://www.lordmrstore.com/lord-mr-products/mrf-140cg-magneto-rheological-fluid
  15. FAR ${\S}$ 23.725 Limit drop tests.
  16. D. Karnopp, M. J. Crosby, and R. A. Harwood, "Vibration Control Using Semi-Active Force Generators," Journal of Engineering for Industry, vol. 96, no. 2, pp. 619-626, 1974. https://doi.org/10.1115/1.3438373