Accession Number : AD0803426

Title :   NATURAL FREQUENCIES AND MODE SHAPES OF THE TRUNCATED CONICAL SHELL WITH FREE EDGES,

Corporate Author : SPACE SYSTEMS DIV LOS ANGELES AFS CA

Personal Author(s) : Krause, Frederick A.

Report Date : OCT 1966

Pagination or Media Count : 39

Abstract : The Donnell type equations of motion for thin conical shells are solved by an approximate method that yields the natural frequencies and mode shapes. The modified Galerkin method utilized these functions in the assumed solution that are required to satisfy displacement type boundary conditions but are not required to satisfy force type boundary conditions. The method accounts for errors in generalized forces at the boundaries. Equations resulting from the application of the modified Galerkin procedure are solved by matrix iteration. Results are presented for the case of the truncated conical shell with free edges and compared with experimental results available in the literature. (Author)

Descriptors :   (*CONICAL BODIES, SHELLS(STRUCTURAL FORMS)), EQUATIONS OF MOTION, DIFFERENTIAL EQUATIONS, ELASTIC PROPERTIES, WALLS, THICKNESS, FREQUENCY, VIBRATION.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE