Comprehensive numerical simulations of a tanker collision with a bergy bit incorporating damage to the vessel

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Proceedings titleIce Research for a Sustainable Environment, the 21st IAHR International Symposium on Ice
Series titleIAHR International Symposium on Ice
Conference21st IAHR International Symposium on Ice (Ice Research for a Sustainable Environment), June 11-15, 2012, Dalian, China
Pages10941106; # of pages: 13
AbstractNumerical simulations of a collision between a loaded tanker and a bergy bit have been conducted using LS-DynaTM software. The simulation incorporated hydrodynamics, via LSDyna’s ALE formulation, and a validated crushable foam ice model. The major portion of the vessel was treated as a rigid body and a section of the hull, located on the starboard side of the forward bow where the ice contact occurred, was modeled as typical ship grillage that could deform and sustain damage as a result of the collision. Strategies for dealing with the highly varying mesh densities needed for the simulation are discussed as well as load and pressure distribution throughout the course of the collision. Realistic movement of the bergy bit due to the vessel’s bow wave prior to contact with the ice was observed and the damage to the grillage in the initial stage of the collision resembled results from actual grillage damage tests in the lab. The collision eventually ruptured the hull in a ripping fashion resembling documented incidents.
Publication date
PublisherDalian University of Technology Press
AffiliationOcean, Coastal and River Engineering; National Research Council Canada
Peer reviewedYes
NRC numberOCRE-IR-2012-04
NPARC number21268583
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Record identifier2fd90e88-aebd-405d-8aaf-f528f0c7cf35
Record created2013-10-24
Record modified2016-05-09
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