EVALUATION AND IMPROVEMENT OF ICEBREAKER PERFORMANCE

Small scale experiments on the icebreaking performance of vessels or on ice forces against offshore structures have been carried out for more than 20 years. The model ice material used for these tests has changed over the years and has always been an issue of dispute. This paper describes procedures of simulating the icebreaking performance of vessels and presents results of model and full scale experiments. While the correlation was good for certain types of vessel, it was unsatisfactory for others. As a result, a new model ice was developed and the brittle failure properties of this are described in detail. The development of numerical methods for icebreaking resistance prediction and analysis is also described. The new information provided by the numerical models is briefly discussed in view of its capability to complement traditional ship model tests in ice and to assist in icebreaker hull design.

• Supplemental Notes:
  • Icetech '94, 5th Intl Conf on Ships and Marine Structures in Cold Regions; 16- 19 March 1994; Calgary, Canada. Pprs. Pub by SNAME, Arctic Section, Calgary, Canada. Ppr G [11 p, 10 ref, 2 tab, 14 fig]
• Authors:
  • Schwarz, J
  • Valanto, P
• Publication Date: 1994

Language

• English

Subject/Index Terms

• TRT Terms: Ice; Icebreakers; Mathematical models; Physical properties; Resistance (Mechanics)
• Uncontrolled Terms: Ice properties; Model tests; Numerical models
• Old TRIS Terms: Ice resistance
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00708440
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM