Vibration absorbers are employed for both structural safety and comfort reasons. This paper explores a novel absorber which uses the sloshing of granular particles to dissipate energy in a rolling container. Some of the parameters which affect energy dissipation have been experimentally studied. Detailed description of one experiment is given. Further work involves numerical exploration.

In this paper, the sloshing response of liquid in a two dimensional rigid rectangular tank with rigid baffles is investigated using boundary element technique. A baffle is a supplementary structural element which supplies a kind of passive control on the effects of ground shaking. The complicated liquid domain is divided into two simple sub-domains so that the liquid velocity potential in each ...

We present a method for charge mixing in self-consistent density functional calculations which uses the Thomas-Fermi-von Weizsäcker equation to solve implicitly for the charge density response function to the potential. This approach has significant improvements over existing methods, particularly for inhomogeneous systems with large unit cells which commonly suffer from poor convergence due to...

Abstract Sloshing is relevant in several applications like ship tanks, space and automotive industry seiching harbours. Due to the relationship between sloshing motions possibility of structural damage, it important represent this phenomenon accurately. This paper investigates at shallow liquid depths a rectangular container using experiments RANS simulations. Free forced sloshing, with without...

The nonlinear hydrodynamic responses of a novel spar-type soft-moored floating offshore wind turbine are investigated via analysis motion measurements from wave-basin campaign. A prototype the TetraSpar floater, supporting $1:60$ scale model DTU 10 MW reference turbine, was subjected to irregular wave forcing (with no wind) and shown exhibit subharmonic resonant motions, which greatly exceeded ...

Mass-spring models are essential for the description of sloshing resonances in engineering. By experimentally measuring liquid's centre mass a horizontally oscillated rectangular tank, we show that low-amplitude obeys Duffing equation. A bending response curve analogy to softening spring is observed, with growing hysteresis as driving amplitude increases. At large amplitudes, complex wave patte...

The elevated reinforced concrete tanks assessed in the current work were subject of a nonlinear sloshing analysis resulting from fluid–container interactions. primary response quantity interest was height free surface sloshing. To achieve this aim, effect liquid contents on seismic behavior subjected to various sets far- and near-fault ground motions measured. variables considered study include...