THE COURSE STABILITY OF TOWED BOATS--EFFECT OF THE TOWED POINTS AND RESTRICTED WATER
We had investigated the problems of the course stability of towed boats in the previous papers No. 42, No. 43 and No. 44, in which the aft towed point was fixed on the rearward of the towed boat. In this paper, we attempt to clarify the course stability problems which are listed as follows: (1) The aft towed point on the towed boats has been placed before the centre of gravity along their longitudinal axis, (2) The aft towed point on the towed boat being removed from the bow-ward to the towedline where the influence of the flow has been neglected, (3) Course stability in shallow water, and (4) Course stability in channels. According to these results, it indicates that in cases (1) and (2), the course stability generally increases, as compared with the case of the aft towed point which was fixed aft. The course stability in shallow water is improved compared with that in deep water. In channels course stability is decreased by the effects of asymmetrical hydrodynamic forces of the channel and is increased markedly as the sway and yaw motions have been restrained by means of steering.
West Japan Society of Naval ArchitectsKyushu University, Hakozaki C-10-1, Higashi-ku
- Inoue, S
- Lim, S T
- Publication Date: 1972-5
- Pagination: n.p.
- Issue Number: 43
- TRT Terms: Channels (Waterways); Hydrodynamics; Maneuvering; Navigation; Towing devices
- Old TRIS Terms: Course stability; Narrow channel navigation; Restricted water operation; Shallow water effects; Towed bodies; Towline hydrodynamics
- Subject Areas: Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;
- Accession Number: 00323612
- Record Type: Publication
- Source Agency: Stevens Institute of Technology
- Files: TRIS
- Created Date: Nov 19 1980 12:00AM