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Discrete Element Modelling of Pack Ice Interaction With Floating Structures

[+] Author Affiliations
Jie Dai, Heather Peng

Memorial University of Newfoundland, St. John’s, NL, Canada

Paper No. OMAE2015-41916, pp. V007T06A018; 7 pages
doi:10.1115/OMAE2015-41916
From:
  • ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 7: Ocean Engineering
  • St. John’s, Newfoundland, Canada, May 31–June 5, 2015
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5655-0
  • Copyright © 2015 by ASME

abstract

This paper presents a two-dimensional numerical model for ship-ice interaction simulatiion using the discrete element method (DEM). The simulation was conducted for a broken ice field with hundreds of circular ice floes and various combinations of ice conditions. A viscous-elastic ice rheology was adopted to model the dynamic behavior of each individual ice floe. Both ship-ice and ice-ice contacts were considered in the interaction force. Environment forces, including wind force and wave force, were calculated by empirical formulas. An algorithm was developed to log each contact and solve motions of individual ice floe and the ship. The resistance of ship advancing in ice was predicted and compared with model test results.

Copyright © 2015 by ASME

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