Study on Improvement in Ramming Performance of Antarctic Icebreaker

摘要

Japanese Antarctic research icebreaker has voyaged in Antarctic severeice condition every year for transportation of cargoes and scientists toSyowa station and for Antarctic expedition. In the voyage, theicebreaker breaks through ice fields by many times of ramming whenshe encounters a heavy ice and snow condition. The rammingperformance has often influenced on the voyage schedule. In thedevelopment of Japan's new Antarctic research icebreaker, importancefor the ramming performance was recognized, and several effectivetechnologies were introduced into the new icebreaker to improve theperformance. This paper describes the advance evaluation of theimprovement measures.