Passive control of vibration has received in recent years a great attention from researchers community. Several types of devices have been proposed in order to reduce the dynamic responses of different kind of structural systems. Among them, the Tuned Liquid Column Damper (TLCD) proved to be very effective in reducing vibration of structures. The same authors have developed a pre-design formulation able to predict the effectiveness of TLCD when subjected to random agencies, by means of a statistical linearization technique. In this paper this formulation has been validated by means of a numerical campaign. Moreover, it is shown that results obtained via Monte Carlo approach on the nonlinear system are in very good agreement with those obtained by means of the proposed formulation. The numerical results are then validated through an experimental campaign on a small scale SDOF shear-type model built in the Experimental Dynamic Labo-ratory of University of Palermo and equipped with a TLCD excited at the base with random noises through a shaking table.

Numerical and experimental validation of a simplified formulation for the design of TLCD

LO IACONO, FRANCESCO;NAVARRA, GIACOMO CAMILLO;
2013

Abstract

Passive control of vibration has received in recent years a great attention from researchers community. Several types of devices have been proposed in order to reduce the dynamic responses of different kind of structural systems. Among them, the Tuned Liquid Column Damper (TLCD) proved to be very effective in reducing vibration of structures. The same authors have developed a pre-design formulation able to predict the effectiveness of TLCD when subjected to random agencies, by means of a statistical linearization technique. In this paper this formulation has been validated by means of a numerical campaign. Moreover, it is shown that results obtained via Monte Carlo approach on the nonlinear system are in very good agreement with those obtained by means of the proposed formulation. The numerical results are then validated through an experimental campaign on a small scale SDOF shear-type model built in the Experimental Dynamic Labo-ratory of University of Palermo and equipped with a TLCD excited at the base with random noises through a shaking table.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11387/44927
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