Accession Number : AD0609955

Title :   SOME TOPICS IN THE THEORY OF COUPLED SHIP MOTIONS.

Descriptive Note : Final rept.,

Corporate Author : CONTROL DATA CORP MELVILLE N Y TRG DIV

Personal Author(s) : Lurye,J. ; Kotik,J.

Report Date : OCT 1964

Pagination or Media Count : 32

Abstract : In this report several different results in the theory of ship motions are presented. Some of the results express certain physical quantities in terms of other such quantities, while the remaining results are in the direction of computing physical quantities by solving boundary value problems. The following results are of the first type: (1) KramersKronig relations with forward speed and cross-coupling; and (2) Impulse response in terms of force coefficient for simple harmonic motion. As work of the second type the authors present a numerical approach which seeks simplicity by avoiding integrations over curved surfaces and approximations to or representations of curved surfaces.

Descriptors :   (*SHIPS, MOTION), (*HYDRODYNAMICS, SHIPS), THEORY, FLUID MECHANICS, POTENTIAL THEORY, HARMONIC ANALYSIS, MOMENTS, DAMPING, PRESSURE, BOUNDARY VALUE PROBLEMS, INTEGRAL TRANSFORMS, NUMERICAL ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE