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유기표,고낙호,전종길,김영문 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Measurement of fluctuating pressure by tube system is carefully designed due to the organ-pipe resonance. It is necessary to correct the pressure before analysis. The three method for correction the distortion fluctuation pressure, short tube length and the frequency response functions and insert a restrictor in the tube to increase the damping. The first method is useful when the tube length is short. In second method, the distorted signal through the tubing transformed into the frequency domain, dividing by transfer function and inverse fourier transforming back into the time domain gives the required pressure signal. In this paper three types of tubing which have different length of 100cm were experimented the distorted signal and correct the distortion signal.
유기표,고낙호,김종수,김영문 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
Research about vibration control that use tuned liquid damper (TLD) that is economical and efficient to reduce vibration (vibration displacement and acceleration)occurrence about strong wind of tall building The effect of reducing vortex induced the vibration of tall buildings with TLD which has a aspect ratio of 8 was investigated in the boundary layer flows presenting suburban area. Using aeroelastic building model which have a TLD in the top level. The top displacement RMS value reduces to that of the original building model without a TLD when the generalized mass ratio equals to 1.0%. The optimal frequency of the TLD range between 0.9 and 1.0 of that of the building model which is consistent with the analytical derivation.