Dynamic Characteristic Analysis of Aerodynamic Load Simulator English

항공기 조종면 부하재현장치의 운동 특성 해석

  • Nam, Yun-Su
  • 남윤수
  • Published : 2001.03.01


A dynamic load simulator(DLS) which can reproduce on-ground the aerodynamic hinge moment of control surface is an essential rig for the performance and stability test of aircraft actuation system. By setting up load actuator as counter acting with the control surface driving actuator and designing an appropriate force control system for load actuator, DLS can be mechanized. Obtaining an accurate mathematical model for the DLS is the first step to successfully design an aerodynamic load replicati on system. Two theoretical models are presented and tested for their validities with the experimental results, which turns out to be not successful. An alternative way of using system identification approaches in investigated to develop a good nominal model for DLS dynamics, and suitable uncertainty bounds for this nominal model are proposed with the consideration of experimental results.


Hydraulic Servo Actuator;System Identification;Dynamic Load Simulator


  1. Ljung, L, 1995, System Identification Toolbox for User with MATLAB, Math Works
  2. Doyle, J.C., Fracis, B.A. and Tannenbaum, A.R., 1992, Feedback Control Theory, Macmillian Publishing Co.
  3. Brown, R.G., 1983, Introduction to Random Signal Analysis and Kalman Filtering, John Wiley & Sons
  4. Ljung, L., 1987, System Identification, Theory for the User, Prentice Hall
  5. Merritt, H., 1967, Hydraulic Control Systems, John Wiley & Sons
  6. Hsu, Y.N, Lai, C.Y., Hsu, M.H. and Lee, Y.K, 1991, Development of the Direct Drive Valve(DDV) Actuation System on the IDF Aircraft, International Pacific Air and Space Technology Conference
  7. MOOG, 1997, Servo and Proportional System Catalog, pp. 95-98
  8. Vieten, K.W., Snyder, J.D. and Clark, R.P., 1993, 'Redundancy Management Concepts for Advanced Actuation Systems', AIAA/AHS/ASEE Aerospace Design Conference, AIAA 93-1168, pp. 1-9
  9. Schaefer, W.S, Inderhees, L.J. and Moynes, J.F., 'Flight Control Actuation System for B-2 Advanced Technology Bomber', Technical Bulletin 153, MOOG
  10. Nam, Y, Lee, J. and Hong, S.K., 2000, 'Force Control System Design for Aerodynamic Load Simulator,' Proceedings of the American Control Conference, pp. 3043-3047
  11. 이성래, 김형의, 문의준, 1994, '유압식 부하 시뮬레이터의 설계에 관한 연구,' 대한기계학회논문집, 제 18 권 제 1 호, pp. 44-52
  12. Roskam, J., 1979, Airplane Flight Dynamics and Automatic Flight Controls, Roskam Aviation and Engineering Corporation
  13. Boeing Commercial Airplane Company, 1985, Test Act System Validation Final Report, NASA CR-172525