Accession Number : AD0786752

Title :   Experiments on Ship Motions in Shallow Water.

Descriptive Note : Interim technical rept. Apr 73-Mar 74,

Corporate Author : MICHIGAN UNIV ANN ARBOR DEPT OF NAVAL ARCHITECTURE AND MARINE ENGINEERING

Personal Author(s) : Troesch,Armin ; Beck,Robert F.

Report Date : MAR 1974

Pagination or Media Count : 35

Abstract : The results of an experimental investigation into shallow water ship motions are presented. The experiments were conducted in two parts. In the first part, the change in form of sinusoidally generated waves as they travel in shallow water were measured. The results are presented as changes in the Fourier harmonics with distance from the wave maker. In the second part, measurements were made of the surge, heave and pitch motions of a tanker model in response to shallow water waves. The waves and motion responses were Fourier analyzed. The experimental results are compared with theoretical predictions made by slender body theory. (Modified author abstract)

Descriptors :   *Ship motion, *Shallow water, Water waves, Mathematical models, Sine waves, Model tests, Heaving, Surges, Pitch(Motion), Fourier analysis, Theory, Slender bodies, Hydrodynamics

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE