ANALYTICAL STUDY OF FORCED SHIP MOTIONS.
Abstract
Various results in the theory of ship motions are described. The Kramers-Kronig relations were extended to the case of forward speed and crosscoupling, in the absence of negative damping. Some initial steps were taken in the direction of calculating Hi-Fi damping coefficients for heaving ellipsoids. The behaviour of damping coefficients at low frequency, for asymmetric motions, was investigated in its own right and in connection with the Hi-Fi method. It was shown that, with zero speed, the cross-coupling coefficients can be found from the wave amplitudes in the forced motion problems. Finally, some thought was given to a new kind of slender body theory for ship motions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 20, 1963
- Accession Number
- AD0427841
Entities
Organizations
- Control Data Corporation