Dynamic Response of an Ice-Covered Fluid to a Submerged Impulsive Point Source

摘要

Flexural-gravity waves generated by an explosion under an ice sheet are considered. The underwater explosion is modeled by a submerged point mass source. It is assumed that water is an ideal incompressible fluid, and that the motion of the liquid is potential. The ice cover is modeled by an initially unstrained viscoelastic, homogeneous, isotropic plate. The analysis is carried out by using Fourier and Laplace integral transforms. The effects on the ice plate deflection of the basin depth, ice plate thickness and submergence depth of the impulsive source are analyzed.