Statement of the boundary-contact problems for the shells in acoustics

Shells are the elements of various constructions, particulary partially submerged into the water (see [1], Fig. 1). They are subjected to external forces of different kind. It is important to estimate the level of vibration fields in these composite systems and analyze energy and energy flow in them. Different shell models were considered in [2], [3], [4] for example. The shell models of Timoshenko and Kirchhoff-Love type, approach and results received in [2] are considered here.