A Technique for Determining Resonant Frequencies of Thin-Walled Cylindrical Structures for On-board Radio-electronic Equipment

The paper considers a technique for determining the lowest natural oscillation frequency of a simply supported circular cylindrical shell. An analytical expression for the frequency parameters of a cylinder with clamped ends is obtained. Numerical solutions of test problems using the ANSYS software package are performed. Based on a comparative analysis of natural oscillation frequency for the cylinders with simply supported and clamped ends, conclusions are drawn and recommendations are given to increase the rigidity of cylindrical structures for on-board radio-electronic equipment.