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Date of Publication:2022-10-06

Journal:力学学报

Volume:45

Issue:6

Page Number:868-877

ISSN No.:0459-1879

Abstract:With the development of navigation channels in Arctic regions and
   oil/gas exploitations in cold fields, the investigation of ice load on
   ship hull is required urgently in o shore engineering under various ice
   and maneuvering conditions. In this paper, the discrete element method
   (DEM) is adopted to simulate the interactions between drifting ice floes
   and a moving ship. The pancake ice floes are modeled with
   three-dimensional discrete elements considering the buoyancy, drag force
   and added mass of current. The ship hull is constructed with triangle
   elements. The interaction between ice floe and ship hull is determined
   through element contact detection and impact force calculation. The
   influences of ice conditions (current velocities and directions, ice
   thicknesses, concentrations and ice floe sizes) and navigational speed
   on the dynamic ice forces of ship hull are examined. This work is of
   reference value to the ship structure design and the navigation security
   in ice-covered fields reseaches.

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