PROPAGATION OF AXISYMMETRICAL NORMAL WAVES IN A SYSTEM OF COAXIAL ORTHOTROPIC, CYLINDRICAL-SHELLS WITH FLOWING FLUIDS

Questions concerning the interaction of two infinitely long, coaxial, cylindrical shells filled with a fluid have been investigated. The case of eccentrically arranged shells was considered. In the enumerated studies, the investigations were carried out mainly on the basis of the classical theory of shells. In this work the authors study the propagation of normal waves in a system of N orthotropic shells, within which acoustic fluids flow with small subsonic velocities. The motion of each of the shells is described by three equations, taking account of the deformation of transverse shear and the inertial forces of rotation and the motion of the fluids is described by the wave equations.