In this paper the vibration behaviors of a structure equipped with a tuned liquid column damper (TLCD) under a harmonic type of earthquake loading are studied. However, due to inherent nonlinear liquid damping, it is no doubt that a great deal of computational effort is required to search the optimum parameters of the TLCD, numerically. Therefore by linearization the equation of motion of the s...

The results of a combined theoretical, numerical and experimental study of liquid oscillations in an asymmetric U-tube are presented. The configuration under investigation is analogous to that of the tuned liquid-column damper used to suppress oscillatory motion in large semi-supported structures. The liquid motion is described by a second-order ordinary differential equation that is nonlinear ...

In this paper, sloshing inside a novel passive control device termed tuned liquid multi-column damper (TLMCD) for mitigating rotational motions of semi-submersible floating offshore wind turbine (FOWT) is numerically modelled using high-fidelity CFD approach. Test cases the under various external excitations including single degree surge and pitch as well combined surge/pitch are presented anal...

This paper presents an enhanced base-isolation (BI) system equipped with a novel passive control device composed of tuned liquid damper and inerter (TLCDI). With the aim reducing seismic response BI systems, this contribution focuses on design TLCDI providing analytical solutions for optimal parameters, easily implementable in phase. The effectiveness proposed approach terms reduction computati...