Wind and Structures

  • 제7권4호
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  • Pages.215-234
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  • 2004
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Testing of tuned liquid damper with screens and development of equivalent TMD model

  • Tait, M.J. (Department of Civil and Environmental Engineering, University of Western Ontario) ;
  • El Damatty, A.A. (Department of Civil and Environmental Engineering, University of Western Ontario) ;
  • Isyumov, N. (Department of Civil and Environmental Engineering, University of Western Ontario)
  • 투고 : 2003.03.28
  • 심사 : 2004.01.22
  • 발행 : 2004.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

The tuned liquid damper (TLD) is increasingly being used as an economical and effective vibration absorber. It consists of a water tank having the fundamental sloshing fluid frequency tuned to the natural frequency of the structure. In order to perform efficiently, the TLD must possess a certain amount of inherent damping. This can be achieved by placing screens inside the tank. The current study experimentally investigates the behaviour of a TLD equipped with damping screens. A series of shake table tests are conducted in order to assess the effect of the screens on the free surface motion, the base shear forces and the amount of energy dissipated. The variation of these parameters with the level of excitation is also studied. Finally, an amplitude dependent equivalent tuned mass damper (TMD), representing the TLD, is determined based on the experimental results. The dynamic characteristics of this equivalent TMD, in terms of mass, stiffness and damping parameters are determined by energy equivalence. The above parameters are expressed in terms of the base excitation amplitude. The parameters are compared to those obtained using linear small amplitude wave theory. The validity of this nonlinear model is examined in the companion paper.

키워드

참고문헌

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피인용 문헌

  1. Modeling and analysis of a structure semi-active tuned liquid damper system vol.24, pp.2, 2017, https://doi.org/10.1002/stc.1865
  2. Numerical flow models to simulate tuned liquid dampers (TLD) with slat screens vol.20, pp.8, 2005, https://doi.org/10.1016/j.jfluidstructs.2005.04.004
  3. Modelling and preliminary design of a structure-TLD system vol.30, pp.10, 2008, https://doi.org/10.1016/j.engstruct.2008.02.017
  4. Effectiveness of a 2D TLD and Its Numerical Modeling vol.133, pp.2, 2007, https://doi.org/10.1061/(ASCE)0733-9445(2007)133:2(251)
  5. Application of tuned liquid dampers in controlling the torsional vibration of high rise buildings vol.21, pp.5, 2015, https://doi.org/10.12989/was.2015.21.5.537
  6. Experimental and numerical analysis of energy dissipation in a sloshing absorber vol.68, 2017, https://doi.org/10.1016/j.jfluidstructs.2016.11.020
  7. Performance of Tuned Liquid Dampers vol.134, pp.5, 2008, https://doi.org/10.1061/(ASCE)0733-9399(2008)134:5(417)
  8. An analysis of screen arrangements for a tuned liquid damper vol.34, 2012, https://doi.org/10.1016/j.jfluidstructs.2012.06.001
  9. Numerical analysis of the flow field in a sloshing tank with a horizontal perforated plate vol.16, pp.4, 2017, https://doi.org/10.1007/s11802-017-3369-6
  10. Mitigation of wind-induced accelerations using Tuned Liquid Column Dampers: Experimental and numerical studies vol.155, 2016, https://doi.org/10.1016/j.jweia.2016.06.002
  11. Experimental investigation on dynamic characterization and seismic control performance of a TLPD system vol.26, pp.7, 2017, https://doi.org/10.1002/tal.1350
  12. Reduced Equivalent Static Wind Loads for Tall Buildings with Tuned Liquid Dampers vol.226-228, pp.1662-7482, 2012, https://doi.org/10.4028/www.scientific.net/AMM.226-228.1218
  13. Development and Validation of Finite Element Structure-Tuned Liquid Damper System Models vol.137, pp.11, 2015, https://doi.org/10.1115/1.4030866
  14. A variably baffled tuned liquid damper to reduce seismic response of a five-storey building vol.171, pp.4, 2018, https://doi.org/10.1680/jstbu.16.00034
  15. Vibration Mitigation of Suspension Bridge Suspender Cables Using a Ring-Shaped Tuned Liquid Damper vol.24, pp.4, 2019, https://doi.org/10.1061/(ASCE)BE.1943-5592.0001372
  16. The efficiency and robustness of a uni-directional tuned liquid damper and modelling with an equivalent TMD vol.7, pp.4, 2004, https://doi.org/10.12989/was.2004.7.4.235
  17. Effect of Bottom Geometry on the Natural Sloshing Motion of Water inside Tanks: An Experimental Analysis vol.11, pp.2, 2021, https://doi.org/10.3390/app11020605
  18. Modeling and design of a tuned liquid damper using triangular-bottom tank by a concentrated mass model vol.104, pp.3, 2004, https://doi.org/10.1007/s11071-021-06433-z
  19. Flow Damping Devices in Tuned Liquid Damper for Structural Vibration Control: A Review vol.28, pp.4, 2004, https://doi.org/10.1007/s11831-020-09450-0
  20. Understanding and exploiting the nonlinear behavior of tuned liquid dampers (TLDs) for structural vibration control by means of a nonlinear reduced-order model (ROM) vol.251, pp.no.pb, 2022, https://doi.org/10.1016/j.engstruct.2021.113524
  21. Design of a pair of isolated tuned liquid dampers (ITLDs) and application in multi-degree-of-freedom structures vol.217, pp.None, 2022, https://doi.org/10.1016/j.ijmecsci.2021.107027