Free Vibrations of a Corrugated Closed Cylindrical Shell.

Autor: Grigorenko, O. Ya., Borisenko, M. Yu., Boichuk, O. V.
Předmět:
Zdroj: International Applied Mechanics; Jan2022, Vol. 58 Issue 1, p43-52, 10p
Abstrakt: The frequencies and modes of free vibrations of a thin closed corrugated circular cylindrical shell with different clamped and free-ends boundary conditions and different physical and mechanical parameters are determined using the finite-element method. The test problem for an open corrugated elliptical cylindrical shell is solved. The solution demonstrates good agreement (less than 2.5%) between the calculated natural frequencies and the frequencies determined by other authors using the spline-collocation method in combination with the discrete-orthogonalization method. The frequencies of the corrugated shell are compared with those for a circular shell of equivalent mass. The dependence of the natural frequencies of a corrugated shell on the boundary conditions and the physical and mechanical characteristics of its material is established. Symmetric and antisymmetric vibration modes are determined for all the corrugated shells considered. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index