Numerical Study of Hybrid Base-isolator with Magnetorheological Damper and Friction Pendulum System

MR 감쇠기와 FPS를 이용한 하이브리드 면진장치의 수치해석적 연구

  • 김현수 (성균관대학교 건축공학과) ;
  • Published : 2005.04.01


Numerical analysis model is proposed to predict the dynamic behavior of a single-degree-of-freedom structure that is equipped with hybrid base isolation system. Hybrid base isolation system is composed of friction pendulum systems (FPS) and a magnetorheological (MR) damper. A neuro-fuzzy model is used to represent dynamic behavior of the MR damper. Fuzzy model of the MR damper is trained by ANFIS (Adaptive Neuro-Fuzzy Inference System) using various displacement, velocity, and voltage combinations that are obtained from a series of performance tests. Modelling of the FPS is carried out with a nonlinear analytical equation that is derived in this study and neuro-fuzzy training. Fuzzy logic controller is employed to control the command voltage that is sent to MR damper. The dynamic responses of experimental structure subjected to various earthquake excitations are compared with numerically simulated results using neuro-fuzzy modeling method. Numerical simulation using neuro-fuzzy models of the MR damper and FPS predict response of the hybrid base isolation system very well.


  1. Naeim, F. and Kelly, J.M., Design of Seismic Isolated Structures: from Theory to Practice, Wuley: New York, 1999
  2. Kelly, J.M., 'The role of damping in seismic isolation,' Earthquake Eng. Struct. Dyn. Vol. 28, 1999, pp. 30-20
  3. Kelly, J.M., 'The current state of base isolation in the Unite States,' Proc. Second World Conference on Structural Control, Kyoto, Japan, Vol. 1, 1999, pp. 1043-1052
  4. 정형조, 최강민, 장지은, 이인원, '면진구조물의 스마트 내진제어', 한국지진공학회 추계워크샵 발표논문집, 한국지진공학회, 2004
  5. 조상원, 이헌재, 김춘호, 이인원, 'MR댐퍼 기반의 스마트 수동제어 시스템', 한국지진공학회 춘계학술발표회 논문집, 한국지진공학회, 2004, pp. 453-461
  6. Nagarajaiah, S., Riley, M.A. and Reinhorn A., 'Control of sliding-isolated bridge with absolute acceleration feedback,' J. Eng. Mech., Vol. 119, No. 11, 1993, pp. 2317-2332
  7. Schmitendorf, W.E., Jabbari, F. and Yang, J.N., 'Robust control techniques for buildings under earthquake excitation,' Earthquake Eng. Struct. Dyn., Vol. 23, 1994, pp. 539-552
  8. Yang, J.N., Wu, J.C., Reinhorn, A.M. and Riley M., 'Control of sliding-isolated buildings using sliding-mode control,' J. Struct. Eng., Vol. 122, No. 2, 1996, pp. 179-186
  9. Spencer, B.F. Jr, Johnson, E.A. and Ramallo, J.C., 'Smart isolation for seismic control,' JSME Int. J. Ser. C., Vol. 43, No. 4, 2000, pp. 704-711
  10. Johnson, E.A., Ramallo, J.C., Spencer, B.F. Jr and Sain M.K., 'Intelligent base isolation systems,' Proc. 2nd World Conf. on Structural Control, Kyoto, Japan, 1999, pp. 367-376
  11. 이호근, 민경원, 성금길, 김대곤, '구조물 진동의 반능동 제어를 위한 MR 댐퍼 설계', 한국지진공학회 춘계학술발표회 논문집, 한국지진공학회, 2004, pp. 469-476
  12. 이상현, 민경원, 이루지, 김대곤, '건축구조물의 지진응답제어를 위해 설치된 MR감쇠기의 모델링 방법에 따른 성능 평가', 한국지진공학회 춘계학술발표회 논문집, 한국지진공학회, 2004, pp. 461-468
  13. Symans, M.D. and Kelly, S.W., 'Fuzzy logic control of bridge structures using intelligent semi-active seismic isolation,' Earthquake Eng. Struct. Dyn. Vol. 28, 1999, pp. 37-60<37::AID-EQE803>3.0.CO;2-Z
  14. Joghataie, A. and Ghaboussi, J., 'Neural network and fuzzy logic in structural control,' Proceedings of the First World Conference on Structural Control, Los Angeles, 1994, pp. 21-30
  15. 박관순, 고현무, 옥승용, '퍼지관리제어기법을 이용한 지진응답의 능동제어', 한국지진공학회논문집, 한국지진공학회, 제5권, 제4호, 2001, pp. 75-81
  16. 박관순, 고현무, 서충원, '독립모달퍼지제어를 이용한 다자유도 구조물의 능동제어', 대한토목학회논문집, 대한토목학회, 제23권, 제5호, 2003, pp. 823-831
  17. 박관순, 고현무, 옥숭용, 서증원, 'MR Damper의 준능동 퍼지제어이론을 이용한 교량구조물의 지진응답제어', 한국지진공학회 춘계학술발표회 논문집, 한국지진공학회, 2002, pp. 459-467
  18. Jang J.S.R., 'ANFIS : Adaptive-Network-Based Fuzzy Inference System,' IEEE Trans. Systems, Cybernetics, Vol. 23, 1993, pp. 665-685
  19. 김현수, Roschke, P.N., Lin, P.Y., 'MR 감쇠기와 FPS를 이용한 하이브리드 면진장치의 퍼지제어,' 한국지진공학회 논문집, 한국지진공학회, 2005, 심사중
  20. Spencer, B.F. Jr., Dyke, S.J., Sain, M.K. and Carlson, J.D., 'Phenomenological model for magnetorheological dampers,' Journal of Engineering Mechanics, Vol. 123, No. 3, 1997, pp. 230-238
  21. Soong, T.T. and Constantinou M.C., Passive and active structural vibration control in civil engineering, New York, Springer-Verlag
  22. Tsopelas, P., Constantinou, M.C., Kim, Y.S. and Okamoto, S., 'Experimental study of FPS system in bridge seismic isolation,' Earthquake Eng. and Struct. Dyn., Vol. 25, No. 4, 1996, pp. 65-78<65::AID-EQE536>3.0.CO;2-A
  23. SIMILINK, The Mathworks Inc., Natick, Massachusetts, 2004