Structural Engineering and Mechanics

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Optimal damping ratio of TLCDs

  • Chen, Yung-Hsiang (Department of Civil Engineering, National Taiwan University) ;
  • Chao, Chen-Chi (Department of Naval Architecture and Ocean Engineering, National Taiwan University)
  • Published : 2000.03.25
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Abstract

The study of the optimal damping ratio of a tuned liquid-column damper (or TLCD) attached to a single-degree-of-freedom system is presented. The tuned liquid-column damper is composed of two vertical columns connected by a horizontal section in the bottom and partially filled with water. The ratio of the length of the horizontal section to the effective wetted length of a TLCD considered as another important parameter is also presented for investigation. A simple pendulum-like model test is conducted to simulate a long-period motion in order to prove the effectiveness of TLCD for vibrational control. Comparisons of the experimental and analytic results of the TLCD, TLD (tuned-liquid damper), and TMD (tuned-mass damper) are included for discussion.

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References

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