Heavy Lift Vessels lift, transport and unload very large
floating objects. Of particular concern is the fact that
the deck load adds buoyancy to the ship, a factor that
must be accurately accounted for in order to do realistic
dynamic stability assessment. ASC delivers a highly modified
version of Autoload®
tailored to these very specific needs.
The software combines an accurate model of the object
to be loaded with a similar model of the heavy lift
vessel, and represents them in 3-D graphics in the interface.
Stability, strength and motion analyses are made on
the resultant combined model. In addition to conducting
all common hydrostatic and stability analyses, you can
easily calculate fundamental ship motion parameters,
including natural pitch, heave and roll period. The
heavy lift solution also reads the tank and draft sensors.
Additionally, the system calculates the required submerged
trim and list of the lifting vessel in order to prevent
any knuckle reaction or unnecessary heeling moment when
contact is made.
Heavy Transport used Autoload
on two sister-ships - M/V Black Marlin and M/V
Blue Marlin - the largest heavy lift vessels
of their kind in the world (now owned by Dockwise). It was one of these sister-ships,
the Blue Marlin, that transported the terrorist-damaged
USS Cole from Yemen waters back to its home port of
Newport News VA. In the case of the 9,000 ton USS Cole,
transporting across two major oceans without incident
required Autoload to both plan the stability
and the deballast plan ahead of time - and to monitor
both in real time using the PC in the loading control
room of the Blue Marlin.
Autoload for Heavy-Lift is also used on Phenix
Shipping's Clipper Cheyenne, a Ro-Ro/heavy Lift