MOTAN: A Novel Approach for determining Ice-Induced Global Loads on Ships.

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Proceedings titleProceedings MARI-TECH 2003
ConferenceMay 28 – 30, 2003
Pages117; # of pages: 17
AbstractThis paper introduces an inertial measurement system called MOTAN and discusses results from one of its full-scale installations. Recent measurements have shown that the MOTAN system offers a novel approach for determining ice-induced global loads on ships. The system consists of two parts: an instrument for measuring whole-ship motions, and software for processing those motions to obtain global ice impact loads. A background of the MOTAN system is given, along with modelscale and full-scale data to support its feasibility for determining global loads from transient ice impacts. The focus of the paper is full-scale data acquired while the CCGS LOUIS S. STLAURENT rammed old ice floes in the high Arctic. MOTAN-derived global loads are presented for three representative events. Data show that ice impact forces can approach 17.3 MN when ships operate in heavy ice conditions.
Publication date
AffiliationNational Research Council Canada; NRC Canadian Hydraulics Centre
Peer reviewedNo
NPARC number12328047
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Record identifier8c1adcb7-595a-49a9-a155-2a0edf6f361a
Record created2009-09-10
Record modified2016-05-09
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