Вільні коливання гофрованої замкнутої циліндричної оболонки змінної товщини

Abstract

The frequencies and forms of free vibrations of a thin closed corrugated circular cylindrical shell with variable thickness along the contour of the cross section with one end fixed rigidly are determined by the finite element method. Symmetric and antisymmetric forms of vibrations are presented. The frequencies of a corrugated shell of variable thickness are compared with the frequencies of a similar corrugated cylindrical shell of a constant thickness of equivalent mass [4]. The approaches implemented in the work make it possible to study the dynamic characteristics of closed and open corrugated cylindrical shells with variable thickness, various boundary conditions and other various parameters.