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Alion hydrodynamic experts have a wide range of experience with
ship motion, offshore dynamics and maneuvering simulation. We use cutting-edge
commercial programs and in-house developed tools as well as the most advanced
U.S. Navy technologies. Our ship motion analysis capability includes motion
simulation in both frequency domain and time domain, use of linear and
nonlinear methods, prediction of small/moderate amplitude motions as well as
large amplitude motions leading to capsize. We can handle not only the
traditional mono-hulls such as naval surface combatants, commercial oil
tankers, bulk carriers, LNGs and container ships, barges, but also drilling
ships, Floating Production Storage and Offloading (FPSO), SPAR, riser and other
offshore production platforms as well as high-speed, more advanced and
challenging hull forms such as high-speed planing boats, catamarans and
air-cushioned surface effect ship. We do single ship motion performance
assessment as well as multi-vessel (with or without pier) motion simulations
such as those required for lightering or cargo transfer operations, mooring and
fendering analysis, offshore oil/gas projects, offshore wave energy harnessing,
ocean thermal energy, towing analysis, articulated ships, articulated barges,
and stern boat launch and recovery, etc. We use our own ship control and
maneuvering tools as well as commerical programs to do various standard ship
maneuvering simulations (IMO requirementments, for example), station keeping
simulation, dynamic positioning simulation and special ship maneuvers.
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