Ice Test |
With
the 90 Meter Ice/Towing Tank,
Oceanic has the ability to conduct tests in ice for a wide range
of icebreaking ships and offshore structures. A typical ship model
test program in one ice sheet would include: ice resistance (three
speeds), propulsion tests (three speeds), turning circle experiments,
and ridge ramming. Ice monitoring and control would include: ice
thickness survey, flexural strength, compressive and shear strength,
ice density and friction coefficient between the hull and the
ice. For testing of offshore structures, a six-component global
base dynamometer records loads on the structure. In addition to
test programs, the Planar Motion
Mechanism (PMM) can be installed to allow captive maneuvering
experiments to be made. The PMM has 'plug-in' modules that allow
testing of structures and moored buoys while the ice moves in
a curvilinear path relative to the vessel simulating changes in
ice drift direction.
To date, over 800 ice sheets have been grown in the ice tank and
an extensive database of ship and offshore structures exists.
Oceanic's expertise in ice technology is backed by experience
in understanding the conditions of the North Atlantic. Background
in assessing models for the severe conditions in the North Atlantic
is one of the reasons designers and owners of marine systems choose
Oceanic for performance evaluation services.
Examples of Projects:
-
FPSO in Extreme Conditions - Tests involving pack ice loading.
-
Ice Loading on a Ship-to-Ship Crude Oil Transfer System - An
evaluation to investigate the following: the limiting ice environment
that would result in tensile failure, or in excessive abrasion,
of a floating oil transfer hose for a tandem mooring arrangement
of FSO and shuttle tanker; and the loading on the FSO/shuttle
mooring lines, on a Single Anchor Leg Mooring (SALM) hawser,
and on the fenders for an alternate side-by-side mooring arrangement.
- Type
1100 Icebreaker Conversion - A study to determine the suitability
of the vessel for a dual science/icebreaking role. Tests involving
flow visualization experiments in ice and initial blister drag
experiments as part of the ice flow visualization experiments.
-
Performance Evaluation of Icebreaking Vessels - Tests involving
maneuvering and propulsion in ice.
-
Full Scale Abrasion Tests on Tanker Offloading Hose - Sections
of Tranfer Hose were dragged against ice sheets ranging from
150 - 270mm thick, to evaluate wear on the hose resulting from
extended season shipping operation
- To view a pdf of DECICE, please click here
- To view a pdf of other ice-related projects, please click here
- To view a pdf of all of our ice-related work, please click here
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