OPERATING LOADS OF MARINE DIESELS NAVIGATING UNDER ICE CONDITIONS
Navigation of a ship in ice involves great loads on the hull, screws, shafts, and engines. Therefore the maneuvering conditions must be set with special care by the navigating staff and be applied to the engines with more know-how than is always the case in practice. Based on observations and measurements of temperatures and pressures, the article attempts to depict the loads on Zultser 6RD-76 diesels when diesel-ships of the Krasnograd type travel in convoy in the ice of the Gulf of Finland. The authors found that the diesels were often overworked unnecessarily when following icebreakers. The operational charts supplied by the engine manufacturers must be followed, except under emergency conditions, which arise relatively rarely; in other words, the engines must not be allowed to labor. Abrupt and substantial changes in load, as the result of working out maneuvers and giving commands for them, affect the engines even more unfavorably, especially when proceeding through ice where resistance to motion of the vessel varies from normal to complete. Travel behind an icebraker is not an emergency situation, and it is completely useless to overexert the engines under such conditions.
Morskoy Flot, USSR
- Zverev, B
- Publication Date: 1968
- Pagination: 23 p.
- Issue Number: 3
- TRT Terms: Engine operation; Force; Hulls; Ice navigation; Maneuverability; Ship motion
- Old TRIS Terms: Engine overloading; Hull forces; Ice operations; Ship response
- Subject Areas: Marine Transportation; Vehicles and Equipment;
- Accession Number: 00014953
- Record Type: Publication
- Source Agency: Joint Publications Research Service
- Files: TRIS
- Created Date: May 7 1971 12:00AM