Mechanism Study of the Interaction Between Sloshing Water Flow and Elastic Baffles in a Shaking Tank

In this study, we employ the SPH method to systematically investigate the mechanism of interaction between sloshing water flow and elastic baffles in a shaking tank from two perspectives: single and multiple elastic baffles. We focus on researching the influence of external excitation frequency ω, shaking angle θ, and immersion ratio h/hb on the free surface elevations of the sloshing, the displacements and forces of the elastic baffles’ top positions, and the impact pressures on the side wall of the shaking tank. The results illustrate that the free surface elevation fluctuation period of the sloshing exhibits a significant frequency dependence on ω. Specifically, when ω approaches the resonant frequency of the tank ω1, the free surface elevations, displacements, forces, and impact pressures reach their maximum values. The shaking angle θ has a clear amplification effect for the free surface elevations, displacements, forces, and impact pressures. The amplitudes of the free surface elevations are relatively close when h/hb=0.75 and 1.0 and gradually decrease when h/hb=1.25. The displacements, forces, and impact pressures show a decreasing trend with increasing h/hb.