Accession Number : ADA307170

Title :   The Free Vibration Behaviour of Ring Stiffened Cylinders - A Critical Review of the Unclassified Literature.

Descriptive Note : Technicla rept.,

Corporate Author : DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

Personal Author(s) : Norwood, C.

PDF Url : ADA307170

Report Date : OCT 1995

Pagination or Media Count : 30

Abstract : The free vibration characteristics of a submarine hull have an important influence on the noise signature. A submarine hull, or portion of one, can frequently be idealised as a ring stiffened cylinder subjected to external loading from the surrounding water, for the purposes of vibration analysis. The modal behaviour of ring stiffened cylinders is reviewed, including the effect of external pressure loading and added mass effects from surrounding fluid. The existing unclassified literature is inadequate in its coverage of the problem and these shortcomings are discussed, in order to identify the requirements for further work in order to be able to satisfactorily analyse a submarine hull structure.

Descriptors :   *SHIP SIGNATURES, *ACOUSTIC SIGNATURES, VIBRATION, LITERATURE SURVEYS, MASS, DYNAMIC LOADS, AUSTRALIA, SUBMARINE HULLS, HYDROSTATIC PRESSURE, RING STIFFENED CYLINDERS.

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE