Open AccessEvaluation of TLCD Damping Factor from FRF Measurement Due to Variation of the Fluid Viscosity
Author(s) -
Lovely Son
Publication year - 2016
Publication title -
kne engineering
Language(s) - English
Resource type - Journals
ISSN - 2518-6841
DOI - 10.18502/keg.v0i0.481
Subject(s) - damper , body orifice , vibration , frequency response , control theory (sociology) , damping ratio , viscosity , damping factor , damping torque , engineering , mechanics , physics , acoustics , structural engineering , computer science , mechanical engineering , direct torque control , electrical engineering , control (management) , voltage , artificial intelligence , induction motor , impedance matching , electrical impedance , quantum mechanics
Tuned Liquid Column Damper (TLCD) has become an alternative solution for reducing low frequency vibration response of machines and structures. This is not surprisingly that the damper has simply structure and low maintenance cost. The main disadvantage of using TLCD is the complexity in controlling TLCD damping factor experimentally. Theoretically, damping factor can be controlled by adjusting the orifice dimension. However, this method is time consuming and not appropriate conducted in the real application. A more simply method for adjusting TLCD damping factor is by varying the fluid viscosity. This research is aimed to evaluate the effect of fluid viscosity to the damper performance. Two DOF shear structure with TLCD is used as the experimental model. Several TLCD fluids with different viscosity are evaluated. Evaluation of TLCD damping factor due to variation of the fluid viscosity is conducted by comparing the Frequency Response Function (FRF) obtained from the experimental data.