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Non Parametric Probabilistic Approach of Ice Load Peaks on Ship Hulls

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

Norwegian University of Science and Technology, Trondheim, Norway

Paper No. OMAE2012-83165, pp. 415-423; 9 pages
doi:10.1115/OMAE2012-83165
From:
  • ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 6: Materials Technology; Polar and Arctic Sciences and Technology; Petroleum Technology Symposium
  • Rio de Janeiro, Brazil, July 1–6, 2012
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4493-9
  • Copyright © 2012 by ASME

abstract

Due to its complex phenomenon, ice-induced load process could not be physically possible to be modeled by a specific well established probabilistic model. Therefore, a non parametric approximate probabilistic approach should be performed based on the available data. This paper describes the procedure and also the extrapolation to get the short term and long term extreme values. Comparison with the classical approach, where the initial distribution of ice-induced load is assumed to be one of the well established probabilistic models, was made. The comparisons discussed in this paper were explored by using the same available data of full scale measurement on board a coastal guard vessel KV Svalbard during the winter 2007. There was a tendency that the non parametric approach produces more conservative results.

Copyright © 2012 by ASME
Topics: Stress , Ice , Ships , Hull

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