A tuned liquid damper (TLD) is a passive control device that transfers kinetic energy from the main structure to a liquid sloshing in a tank. The mechanical description of a sloshing liquid contained in a tank requires an intricate mathematical formulation. An alternative technique describes the TLD dynamic behavior as an equivalent mechanical model comprising a series of pendulums or mass–spring systems attached to the tank walls. To validate this approach, this paper compares the discrete model to experimental results and an analytical solution for a rectangular container attached to a pendulum (pendulum-slosh problem). At first, the fundamental oscillation period of the discrete model, representing a rectangular tank, is compared to experimental data and a classic analytical solution. Finally, we compare the pendulum-slosh problem modeled as a discrete model with the analytical solution and experimental results.

Equivalent mechanical model of rectangular container attached to a pendulum compared to experimental data and analytical solution / de Morais, M. V. G.; Lopez, A. A. O.; Martins, J.; Pedroso, L. J.. - In: JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING. - ISSN 1678-5878. - 42:3(2020). [10.1007/s40430-020-2232-7]

Equivalent mechanical model of rectangular container attached to a pendulum compared to experimental data and analytical solution

Martins J.;
2020

Abstract

A tuned liquid damper (TLD) is a passive control device that transfers kinetic energy from the main structure to a liquid sloshing in a tank. The mechanical description of a sloshing liquid contained in a tank requires an intricate mathematical formulation. An alternative technique describes the TLD dynamic behavior as an equivalent mechanical model comprising a series of pendulums or mass–spring systems attached to the tank walls. To validate this approach, this paper compares the discrete model to experimental results and an analytical solution for a rectangular container attached to a pendulum (pendulum-slosh problem). At first, the fundamental oscillation period of the discrete model, representing a rectangular tank, is compared to experimental data and a classic analytical solution. Finally, we compare the pendulum-slosh problem modeled as a discrete model with the analytical solution and experimental results.
2020
Continuous model; Discrete equivalent model; Experimental analysis; Levenberg–Marquardt; Sloshing; Video motion capture
01 Pubblicazione su rivista::01a Articolo in rivista
Equivalent mechanical model of rectangular container attached to a pendulum compared to experimental data and analytical solution / de Morais, M. V. G.; Lopez, A. A. O.; Martins, J.; Pedroso, L. J.. - In: JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING. - ISSN 1678-5878. - 42:3(2020). [10.1007/s40430-020-2232-7]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1407708
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