VIBRATIONS OF NONCIRCULAR CYLINDRICAL SHELLS.

Abstract

A method is shown for analyzing free vibrations of thin cylindrical shells with noncircular cross sections which have been used in chemical plants, atomic plants, flight structures and so on. This method is a general one applicable to various noncircular cylindrical shells. As the first step, an exact solution is obtained of a noncircular cylindrical shell with freely supported ends. By the numerical calculations, natural frequencies and mode shapes of elliptical cylindrical shells are obtained and their characteristics clarified.