Accession Number:

AD0416167

Title:

THE FREE VIBRATIONS OF THICK, COMPOSITE, ORTHO TROPIC, CIRCULAR CYLINDRICAL SHELLS,

Descriptive Note:

Corporate Author:

GRUMMAN AIRCRAFT ENGINEERING CORP BETHPAGE N Y

Report Date:

1963-08-01

Pagination or Media Count:

122.0

Abstract:

The equations governing the free vibrations of a thick orthotropic core circular cylindrical sand wich shell are developed. The solution is pre sented for the case of simple support edge condi tions. The technique for obtaining the solution represents a departure from the usual study of free vibrations in not following the customary procedure of eliminating the force quantities from the equations of motion. Instead, the mixed system of force and displacement quantities is utilized directly. Comparisons are made with limiting cases obtained from an exact solution in the theory of elasticity and very good agree ment is obtained. In addition, parameter studies are presented. These indicate the existence of several factors which have a dominant influence on the frequencies. These factors are core orthotropy relative strength of the face plates and core relative strength of the face plates relative masses of the face plates and core. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE