Torch Vibrations of a Viscoelastic Shell with a Viscous Liquid
- Country : Uzbekistan
- Subject : Engineering
The article presents an effective numerical-analytical method for solving problems of hydro-viscose-elasticity and gives examples of calculating the natural oscillations of thin-walled cylindrical shells in contact with a viscous fluid by this method. The linear torsional vibrations of a cylindrical viscoelastic shell in contact with a viscous fluid are considered. The equation of motion of a viscoelastic shell is obtained on the basis of the moment theory of shells and satisfies the Kirchhoff Love and S.P. Timoshenko hypotheses. Fluid motion is described by the Navier Stokes equations. The problem is solved numerically by the methods of orthogonal sweep and Muller. The spectrum of complex Eigen frequencies and modes of oscillations is obtained depending on the wave number.