Investigation of Secondary Icebreaker Performance during an Ice Management Operation

Depending on ice conditions, ice management operations may involve two or more icebreakers, known as primary and secondary icebreakers. Whether developing an ice management strategy, or executing operations, understand the performance of the icebreaker fleet is most important. The Lindqvist model of ice resistance is chosen to predict icebreaker performance in level ice with estimated hydrodynamic resistance. While one may assume that a broken ice regime (following primary icebreaker activity) may have less resistance, ice management operations for a secondary icebreaker will require continuous turning /maneuvering as it interacts with a more complex ice regime. Therefore, it is important to look into secondary icebreaker performance with different operating situations. Recent field observations suggest that existing models may over predict secondary vessel performance. Understanding the influences of the performance reduction for the secondary icebreaker is the key to successful develop of performance model for icebreakers during ice management operations. This paper presents an overview of the secondary icebreaker performance during an ice management operation and a new analytical model that is compared with field trials data. The resulting model demonstrates reduced icebreaker capabilities with an example.

• Record URL:
  https://www.poac.com/Papers/2017/pdf/POAC17_131_Yujian.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:
  • Huang, Yujian
  • Ralph, Freeman
• Conference:
  • 24th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 2017)
  • Location: Busan , Korea, South
  • Date: 2017-6-11 to 2017-6-16
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 17p
• Monograph Title: POAC 2017: Proceedings of the 24th 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: Dynamic resistance; Hydrodynamics; Ice concentration; Icebreakers; Management; Navigation; Performance; Ships; Vessel operations
• Geographic Terms: Arctic Regions
• Subject Areas: Environment; Marine Transportation; Operations and Traffic Management; Vehicles and Equipment;

Filing Info

• Accession Number: 01747095
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 29 2020 4:09PM