Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Performance Evaluation of a Large-scale MR Damper for Controlling Seismic Responses Using a Real-time Hybrid Test Method

실시간 하이브리드 실험법을 이용한 대형 MR감쇠기의 제진 성능평가

  • Published : 2008.01.20
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Abstract

This paper presents real-time hybrid test method of large-scale MR damper applied to a building structure under seismic excitation. The real-time hybrid test using an actuator for the control performance evaluation of a MR damper controlling the response of earthquake-excited building structure is experimentally implemented. In the test, the building structure is used as a numerical part, on which a large-scale MR damper adopted as an experimental part was installed to reduce its response. At first, the force that is acting between a MR damper and building structure is measured from the load cell attached on the actuator system and is fed-back to the computer to control the motion of the actuator. Then, the actuator is so driven that the error between the interface displacement computed from the numerical building structure with the excitations of earthquake and the fed-back interface force and that measured from the actuator. The control efficiency of the MR damper used in this paper is experimentally confirmed by implementing this process of experiment on real-time.

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References

  1. Jansen, L. M. and Dyke, S. J., 2000, 'Semiactive Control strategies for MR Dampers : A Comparative Study', ASCE Journal of Engineering Mechanics, Vol. 126, No. 8, pp. 795-803 https://doi.org/10.1061/(ASCE)0733-9399(2000)126:8(795)
  2. Lee, H.-J., Yang. G., Jung, H.-J., Spencer Jr. B. F. and Lee, I.-W, 2006, 'Semi-active Neurocontrol of a Base-isolated Benchmark Structure', Struct. Control Health Monit., Vol. 13, pp. 682-692 https://doi.org/10.1002/stc.105
  3. Yang, G., Spencer Jr. B. F., Jung H.-J. and Carlson, J. D., 2004, 'Dynamic Modeling of Large-scale Magnetorheological Damper Systems for Civil Engineering Applications', J. Engrg. Mech., Vol. 130, No. 9, pp. 1107-1114 https://doi.org/10.1061/(ASCE)0733-9399(2004)130:9(1107)
  4. Nakashima, M., Kato, H. and Takaokas, E., 1992, 'Development of Real-time Pseudo Dynamic Testing', Earthquake Engineering and Structural Dynamics, Vol. 21, pp. 79-92 https://doi.org/10.1002/eqe.4290210106
  5. Lee, S.-K., Park, E. C., Min, K.-W., Lee S.-H., Chung, L. and Park, J.-H., 2007, 'Real-time Hybrid Shaking Table Testing Method for the Performance Evaluation of a Tuned Liquid Damper Controlling Seismic Response of Building Structures', Journal of Sound and Vibration Vol. 302, pp. 596-612 https://doi.org/10.1016/j.jsv.2006.12.006
  6. Dyke, S. J., Spencer Jr. B. F., Sain, M. K. and Carlson, J. D., 1996 'Modeling and Control of Magnetorheological Dampers for Seismic Response Reduction', Smart Materials and Structures, Vol. 5, pp. 565-575 https://doi.org/10.1088/0964-1726/5/5/006
  7. Lee, S.-H., Park, E.-C., Youn, K.-J, Lee, S.-K., Yu, E., Min, K.-W., Chung L., Min, J.-K. and Kim, Y.-C., 2006, 'Forced Vibration Test of a Real-scale Structure and Design of HMD Controllers for Simulating Earthquake Response', Journal of the Earthquake Enginnering Society of Korea, Vol. 10, No. 6, pp. 103-114 https://doi.org/10.5000/EESK.2006.10.6.103