Full Content is available to subscribers

Subscribe/Learn More  >

Estimates of the Number of Vibration Cycles From Frequency Locked-in Ice Loads

[+] Author Affiliations
Morten Bjerkås, Hagbart S. Alsos, Kasper Wåsjø

Reinertsen AS, Trondheim, Norway

Paper No. OMAE2014-23134, pp. V010T07A008; 7 pages
  • ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 10: Polar and Arctic Science and Technology
  • San Francisco, California, USA, June 8–13, 2014
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4556-1
  • Copyright © 2014 by ASME


A method is proposed to estimate the number of vibration cycles caused by frequency locked-in ice loads on a bottom fixed structure. Studies of the onset of frequency lock-in have been performed and based on that, different onset criteria are studied. It is shown in this work that most existing onset criteria significantly overestimate the vulnerability to frequency locked-in ice loads. The method described proposes a 90 % reduction in the number of vibration cycles in a winter season. The 2002–2003 winter at Norströmsgrund lighthouse is compared with the proposed method. The comparisons show that all available methods overestimate the number of vibration cycles significantly.

Copyright © 2014 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In