A review on ice resistance prediction formula for icebreaking vessels

Abstract

One of the widely-used ice resistance prediction methods, introduced by Spencer(1992) of Canada, is reviewed. Spencer's component-based scaling system for ship-ice model test is analyzed to estimate the ice resistance of various types of icebreaking vessels (Canadian MV Arctic, Terry Fox, R-class, US icebreakers Polar Star and Healy, Russian SA-15 cargo ships, Japanese PM Teshio and one model ship). The general form and the non-dimensional coefficients in ice resistance prediction formula are obtained using the published ice model test and full-scale sea trial data. The applicability of Spencer's method for the larger icebreaking cargo vessels is discussed. Copyright ？ 2009 by The International Society of Offshore and Polar Engineers (ISOPE).