Characteristic features of the oscillation of shells of bodies of revolution immersed in a viscous fluid flow

The influence of the physicomechanical properties of large-scale shells on their oscillation in a fluid flow is investigated. It is shown that shells of length-variable rigidity may in principle ensure the phase velocity of a traveling wave along the meridian such as to transfer energy from the fluid to an elastic coating over the starting length and thus to preserve it in the form of the energy of elastic oscillations and to recover the fluid pulse on the back side.