Accession Number : AD0612539

Title :   THE EFFECT OF STRUCTURAL DAMPING ON THE FORCED VIBRATIONS OF CYLINDRICAL SANDWICH SHELLS,

Corporate Author : DON BOSCO INST FOR RESEARCH RAMSEY N J

Personal Author(s) : Jones,Irving W. ; Salerno,V. L.

Report Date : DEC 1964

Pagination or Media Count : 41

Abstract : An examination is made of the effects of structural damping on the axisymmetric forced vibrations of a cylindrical sandwich shell. The analysis is formulated by two methods, one exact but leading to lengthy calculations, the other a simple approximate formula requiring only a knowledge of the natural modes. In numerical examples, two steel-faced sandwich cylinders are compared. One has a polymeric, the other an elastomeric core. The results indicate that under a time-harmonic radial pressure they are both effective for suppressing resonant vibration, the polymeric core being generally more effective than the elastomeric core. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), SANDWICH CONSTRUCTION), (*VIBRATION, SHELLS(STRUCTURAL FORMS)), (*DAMPING, VIBRATION), CYLINDRICAL BODIES, PRESSURE, MOTION, POLYMERS, ELASTOMERS, NUMERICAL ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE