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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Dynamic Characteristics of Tuned Liquid Column Dampers Using Shaking Table Test

진동대실험에 의한 동조액체기둥감쇠기의 동적특성

  • Published : 2009.06.20
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Abstract

Shaking table test was carried out to obtain dynamic characteristics of TLCDs with uniform and non-uniform sections for both horizontal and vertical tubes. The input to the table is harmonic acceleration with constant magnitude. The output is horizontal dynamic force which is measured by load cell installed below the TLCD. Transfer functions are experimentally obtained using the ratio of input and output. Natural frequency, the most important design factor, is compared to that by theoretical equation for TLCDs with five different water levels. System identification process is performed for experimentally obtained transfer functions to find the dynamic characteristics of head loss coefficient and effective mass of TLCDs. It is found that their magnitudes are larger for a TLCD with non-uniform section than with uniform section and natural frequencies are close to theoretical ones.

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References

  1. Soong, T. T. and Dargush, G. F., 1997, “Passive Energy Dissipation Systems in Structural Engineering,” John Wiley & Sons
  2. Heo, J. S., Park, E. C., Lee, S. H., Lee, S. K., Kim, H. J., Cho, B. H., Jo, J. S., Kim, D. Y. and Min, K. W., 2008, “A Tuned Liquid Mass Damper(TLMD) for Controlling Bi-directional Responses of a Building Structure,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 3, pp. 345-355 https://doi.org/10.5050/KSNVN.2008.18.3.345
  3. Sakai, F., Takaeda, S. and Tamaki, T., 1989, “Tunes Liquid Column Damper-new Type Device for Suppression of Building Vibration,” Proc. International Conference on High-rise Building, pp. 926-931
  4. Hitchcock, P. A., Kwok, K. C. S., Watkins, R. and Samali, D. B., 1997, "Characteristic of Liquid Column Vibrations Absorbers(TLCD)- I" Engineering Structures, Vol. 19, pp. 126-134 https://doi.org/10.1016/S0141-0296(96)00042-9
  5. Hitchcock, P. A., Kwok, K. C. S., Watkins, R. and Samali, D. B., 1997, “Characteristic of Liquid Column Vibrations Absorbers(TLCD)-II,” Engineering Structures, Vol. 19, pp. 135-144 https://doi.org/10.1016/S0141-0296(96)00044-2
  6. Gao, H., Kwok, K. C. S. and Samali, B., 1997, “Optimization of Tuned Liquid Column Dampers,” Engineering Structures, Vol. 19, pp. 476-486 https://doi.org/10.1016/S0141-0296(96)00099-5
  7. Chang, C. C. and Hsu, C. T., 1998, “Control Performance of Liquid Column Vibration Absorbers,” Engineering Structures, Vol. 20, pp. 580-586 https://doi.org/10.1016/S0141-0296(97)00062-X
  8. Balendra, T., Wang, C. M. and Rakesh G., 1998, “Effectiveness of TLCD on Various Structural Systems,” Engineering Structures, Vol. 21, pp. 291-305
  9. Yalla, S. K., 2001, “Liquid Dampers for Mitigation of Structural Response,” Theoretical Development and Experimental Validation, Ph.D. Thesis, University of Notre Dame
  10. Wu, J. C., Shin, M. H., Lin, Y. Y. and Shen, Y. C., 2005, “Design Guidelines for Tuned Liquid Column Damper for Structures Responding to Wind,” Engineering Structures, Vol. 27, pp. 1893-1905 https://doi.org/10.1016/j.engstruct.2005.05.009
  11. Heo, J. S., Park, E., Lee, S. K., Lee, S. H., Kim, H. J., Jo, J. S., Cho, B. H., Joo, S.-J. and Min, K. W., 2008, “Performance Test of a Tuned Liquid Mass Damper Installed in a Real-scaled Structure,” Journal of the Computational Structurel Engineering Institute of Korea, Vol. 21, No. 2, pp. 161-168
  12. The Math Works, 1999, Optimization Toolbox User's Guide, The MathWorks
  13. The Math Works, Inc, 2007, Simulink Reference, MATLAB${\circledR}$ SIMULINK${\circledR}$
  14. The Math Works, Inc, 2007, Real-time Windows Target 3 User's Guide, MATLAB${\circledR}$ SIMULINK${\circledR}$

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