NATURAL FREQUENCY ESTIMATION FOR UNSYMMETRIC CROSS SECTION OF A TYPICAL CYLINDRICAL SHELL

It's the trend of studying of complex geometries in the phenomenon of the aeronautical domain. Studying of unsymmetrical cross section of a cylindrical shell involves with the complex analysis than beams and plates. The usage of complex geometrical components involves in the design of aircraft fuselage, space shuttles, submarines and construction buildings. To maintain the safety of the components the vibration analysis carried out for the models to know their natural frequencies in avoiding resonance. In order to determine the natural frequency of the cylindrical shell, an analytical procedure is discussed. The modal is built in solid works and the modal analysis is carried out using ANSYS. The natural frequencies determined for various thickness and percentage of box cross section using tuning techniques then plotted in MATLAB.