A prediction method of ice breaking resistance using a multiple regression analysis

• Published in: International Journal of Naval Architecture and Ocean Engineering
• Main Authors: Seong-Rak Cho, Sungsu Lee
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2015
• Subjects: Ice breaking ships; Multiple regression analysis; Ice model test; Ice resistance; Crushing failure; Ocean engineering; TC1501-1800; Naval architecture. Shipbuilding. Marine engineering; VM1-989; Sea ice
• Online Access: https://doi.org/10.1515/ijnaoe-2015-0050; https://doaj.org/article/fd330eec5a4d40c09e51790869c7a0f4

The two most important tasks of icebreakers are first to secure a sailing route by breaking the thick sea ice and second to sail efficiently herself for purposes of exploration and transportation in the polar seas. The resistance of icebreakers is a priority factor at the preliminary design stage; not only must their sailing efficiency be satisfied, but the design of the propulsion system will be directly affected. Therefore, the performance of icebreakers must be accura-tely calculated and evaluated through the use of model tests in an ice tank before construction starts. In this paper, a new procedure is developed, based on model tests, to estimate a ship’s ice breaking resistance during continuous ice-breaking in ice. Some of the factors associated with crushing failures are systematically considered in order to correctly estimate her ice-breaking resistance. This study is intended to contribute to the improvement of the techniques for ice resistance prediction with ice breaking ships.