FREQUENCY DOMAIN PREDICTION OF SUBMARINE MOTION IN WAVES (SUBMO). VOLUME 1

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Authors
  1. Johnston, G.W.
  2. Foster, S.P.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Aerospace Engineering and Research Consultants Ltd, Downsview ONT (CAN)
Abstract
The perturbed motion of a submarine hull, advancing at a constant mean forward speed near the free surface, has been studied, using linear perturbation methods. The forces perturbing the steady mean hull velocity are taken to be given by a linear superposition of force contributions from several sources. Firstly, the incident surface gravity waves and the associated diffracted wave field result in oscillatory pressures over the hull's surface during its steady advance. The corresponding force contributions are examined in the associated diffraction problem. In a second associated problem the hull is considered to be moving with simple rigid harmonic perturbation motions (about one or more of the coordinate axes) beneath an otherwise quiescent free surface. The radiated surface waves and the accelerated fluid close to the hull given rise to additional hull forces studied in the radiation problem. TRUNCATED
Report Number
DREA-CR-91-435-VOL-1 — Contractor Report; See also Volume II (DSIS 92-00422)
Date of publication
15 Jul 1991
Number of Pages
127
DSTKIM No
92-00421
CANDIS No
103319
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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