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Full Scale Measurement on Level Ice Resistance of Icebreaker

[+] Author Affiliations
Abdillah Suyuthi, Bernt J. Leira

Norwegian University of Science & Technology, Trondheim, Norway

Kaj Riska

Centre for Ships and Ocean Structures, Trondheim, Norway

Paper No. OMAE2011-50066, pp. 983-989; 7 pages
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology; Polar and Arctic Sciences and Technology
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4433-5
  • Copyright © 2011 by ASME


This paper presents results from the investigation of ship resistance on first year level ice in the Barent Sea. The basis for the work is the availability of full scale measurement data obtained on board of KV Svalbard in 2007. Measurements were made of the ice thickness, ship speed over ground in addition to setting power. The ice thickness was measured by means of an electromagnetic device, which enables careful selection of the time sequences for which level ice is present. By utilizing Newton II law and conservation of energy, the total resistance can be determined. The ice resistance in level ice was then obtained by subtracting the open-water resistance from the total resistance. The open-water resistance was measured when the ship was traveling in open water during the expedition. The relationship between the ship resistance and the ship speed over ground in level ice was finally obtained and compared with the Lindqvist formulation of estimation of ice resistance.

Copyright © 2011 by ASME



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