Influence of Bow Design on Ice Breaking Resistance

One of the main contributions to the resistance in level ice is the breaking force which is mainly influenced by the bow shape, beside ice properties and the ship’s speed. Understanding the influence of the bow shape on the ice breaking resistance is essential for the assessment of the hull form in an early design stage. However, at a first glance the bow shapes of modern ice breaking vessels seem to be quite similar. Thus, a need exists to evaluate the contribution of the ice breaking force to the resistance in ice methodically for different bow shapes. Since model tests are still the most reliable resistance prediction method, they form the basis for the analysis of the ice breaking process at the bow. Specifically, breaking patterns and geometric bow parameters are investigated. The findings are compared with the selected semi-empirical method of Lindqvist. On this basis the Lindqvist approach is evaluated with further model test results and theoretical considerations. Finally, refinements of the Lindqvist formula are suggested where appropriate based on the analysis.

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Record URL:
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
Supplemental Notes:
- Abstract reprinted with permission of Elsevier.
Authors:
- Myland, Daniela
- Ehlers, Sören
Publication Date: 2016-6-1

Language

English

Media Info

Media Type: Web
Features: Figures; References; Tables;
Pagination: pp 217-232
Serial:
- Ocean Engineering
- Volume: 119
- Publisher: Pergamon
- ISSN: 0029-8018
- EISSN: 1873-5258
- Serial URL: http://www.sciencedirect.com/science/journal/00298018

Subject/Index Terms

TRT Terms: Bows; Design; Icebreaking; Mathematical models; Shape; Shear strength
Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

Accession Number: 01600931
Record Type: Publication
Files: TRIS
Created Date: May 18 2016 9:20AM