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Structure–fluid interaction model of tuned liquid dampers
Author(s) -
KanokNukulchai W.,
Tam B. T.
Publication year - 1999
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19991130)46:9<1541::aid-nme711>3.0.co;2-y
Subject(s) - slosh dynamics , finite element method , compressibility , damper , fluid–structure interaction , displacement (psychology) , mechanics , distortion (music) , hydroelasticity , excitation , structural engineering , physics , engineering , psychology , amplifier , optoelectronics , cmos , quantum mechanics , psychotherapist
A Lagrangian displacement‐based fluid element has been developed to model large amplitude free surface motion of nearly incompressible viscous fluids in a tank of rectangular cross‐section under dynamic excitation for tuned liquid damper applications. The penalty method is employed to enforce the nearly incompressible characteristic of fluids considering the non‐linear effect of finite distortion of zero‐shear and low‐viscous fluid elements. The effectiveness of the proposed model was verified by experimental results from the literature. The results show that the proposed non‐linear fluid element can predict non‐linear behaviours of large amplitude sloshing due to dynamic excitation, especially at near‐resonant region. The proposed fluid element can be conveniently incorporated into any existing general‐purpose finite element program to serve as an effective tool for the analysis and design of tuned liquid dampers. Copyright © 1999 John Wiley & Sons, Ltd.