MODEL TESTS OF TWIN SCREW ICEBREAKER HULL FORMS IN ICE MODEL BASIN
To develop a hull form with good ice-breaking performance, a series of model tests was carried out in the ice tank of the Hamburgische Schiffbau-Versuchsanstalt at NKK's request. The results of resistance and ramming tests of four typical hull forms are compared and show the benefit of a cylindrical stem which breaks ice more by bending than crushing. Using the best of the four forms, the effect of ice thickness, ice strength, and the hull-ice friction coefficient were examined. Self-propulsion tests were also carried out and full-scale performance was estimated from model test results. The simulated conditions for model tests in ice and their practical limitations are also discussed.
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Corporate Authors:
Nippon Steel Corporation
345 Park Avenue, 41st Floor
New York, NY United States 10022 -
Authors:
- Narita, S
- Ishibashi, Y
- Publication Date: 1980-9
Media Info
- Pagination: p. 64
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Serial:
- Nippon Steel Technical Report Overseas
- Issue Number: 29
- Publisher: Nippon Steel Corporation
Subject/Index Terms
- TRT Terms: Fluid resistance; Hulls; Ice; Icebreakers; Icebreaking; Propulsion; Resistance (Mechanics); Strength of materials; Thickness
- Uncontrolled Terms: Hull resistance
- Old TRIS Terms: Hull forms; Ice strength; Ice thickness; Model testing; Twin screws
- Subject Areas: Marine Transportation; Materials; Vehicles and Equipment;
Filing Info
- Accession Number: 00331575
- Record Type: Publication
- Source Agency: British Ship Research Association
- Files: TRIS
- Created Date: May 21 1981 12:00AM