ABSTRACT
Junger,1 Bleich and Baron,2 and Greenspon3 have presented the theory of the isotropic cylindrical shell vibrating in water. The purpose of these basic studies was to indicate the major parameters that affected the frequencies and the response of the shell. Ring-stiffened construction has been of interest for many years. However, only recently has attention been focused on orthotropic materials and sandwich type construction. The relative buckling strength of these types of structures is of primary consideration in their design, but the vibration and radiation characteristics is a parallel problem that must be investigated.
