Experimental and Numerical Investigation of a Model-Scale Ship and Ice Floe (Second Report)

In earlier studies, the authors conducted small-scale model experiments and numerical analyses to assess the risk of situations in which a ship collides with a piece of ice. Analysis of velocity immediately before a collision is possible. Results show good agreement with the model tests. However, because of a problem in the analysis of the wave that the model ship induces, a difference was found in the detailed behavior of the ice piece before the collision. Furthermore, the velocity immediately before the collision was not measured with sufficient accuracy by the model test. For this study, the authors improved the experimental apparatus so that the authors could measure the ice motion accurately up to the point immediately before the collision. A newly installed digital high-speed camera enables accurate observation of the ice motion. The authors also investigated a method to restrict the ice motion (degrees of freedom). Results show that the guide near the water surface affects the ice motion. The authors also improve numerical simulation methods to reduce the effects of wave propagation and reflection because these are unimportant in an actual ocean. Consequently, the ice motion in numerical analyses is quantitatively equivalent to that of the experiment.

• Record URL:
  http://www.poac.com/Papers/2015/pdf/poac15Final00212.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03766756
• Supplemental Notes:
  • Abstract reprinted with permission of the International Conference on Port and Ocean Engineering Under Arctic Conditions (POAC).
• Authors:
  • Shigihara, Tatsuya
  • Ishibashi, Daisuke
  • Konno, Akihisa
• Conference:
  • 23rd International Conference on Port and Ocean Engineering under Arctic Conditions (POAC '15)
  • Location: Trondheim , Norway
  • Date: 2015-6-14 to 2015-6-18
• Publication Date: 2015

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: 10p
• Monograph Title: POAC '15: Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions
• Serial:
  • Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions
  • Publisher: Port and Ocean Engineering under Arctic Conditions (POAC)
  • ISSN: 0376-6756
  • EISSN: 2077-7841
  • Serial URL: http://www.poac.com/PapersOnline.html

Subject/Index Terms

• TRT Terms: Cameras; Experiments; Ice floes; Icebreaking; Numerical analysis; Risk assessment; Water transportation crashes
• Subject Areas: Marine Transportation; Operations and Traffic Management; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 01617084
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 21 2016 1:42PM