Author(s): Xiaodong Chen; Shunying Ji
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Keywords: No Keywords
Abstract: In this study, a discrete element method (DEM) is developed to calculate the ice load on ship hull in level ice. The sea ice is constructed with 3-D bonded spherical elements considering its breakage characteristics based on a failure criterion. Both of the buoyancy and drag force of current on ice elements are considered. The ship hull is modeled with triangle elements considering the geometric structure of icebreaker Snow Dragon of China. Two typical situations in navigations are simulated with DEM, i. e, straight shipping and turning. Global ice resistances and local load distributions are obtained with the DEM simulations. Additionally, the influences of sea ice thickness and shipping speed on ice load are also investigated.
Year: 2014