Structural analysis of equipment and grillages is performed for custom design,
and under-deck strength of ships and barges is also checked that carry these
heavy loads with necessary reinforcement if required. Software used: ANSYS,
RFEM, Scia, Matlab, Rython
Motion Analysis
Motion analysis of ships, barges, mooring structures, buoys, caissons, etc are
provided. Software: Amarcon Octopus, Moses, Ansys Aqwa & Hydro-D
Operability Analysis
Operating rate of equipment is analyzed based on statistical data on wave
heights and periods in the operating area and the heading of the vessel. This
allows us to calculate the utilization rates of crane operations for monopiles,
rock and gravel dropping operations to prevent scouring, and other operations.
Based on the results, proposals are made to improve the utilization
rate. Software used: Orcaflex
Stability Analysis and Ballasting Planning
Stability analyses and ballasting plans for ships, barges, SEPs are performed.
These calculations are required by classification societies and underwriters
when wind turbine components are transported by heavy lift vessels, SEPs, or
barges. In addition, a ballasting plan is required to offset variations in the
vessel's trim and heel when the heavy lift is loaded onto the vessel by the
SPMT. Software used: GHS, in-house developed software
Mooring analysis and bollard bull calculation
Mooring calculations for single point mooring buoys and conventional mooring
systems are performed. Bollard pull (towing force) calculations are also made
and an appropriate tug boats are selected based on the results. Software
used: Orcaflex, in-house developed software
Foundation Analysis
Geotechnical analysis to optimize the design of Jacket Template and Pile Gripper
is performed. MP self-stability analysis, self-settlement, impact driving
analysis, scouring, liquefaction, and pile run studies are also performed.
Dynamic Motion Analysis during Monopile Installation
Behavior of a monopile/J-tub due to external forces such as waves, currents, and
wind is analyzed when it is lowered by a crane and it is determined that the sea
conditions under which the crane and Pile Gripper can safely operate and remain
within the safe load range. Software used: Orcaflex, etc.
Drive and Control System Design
Design of hydraulic drives and control systems is performed for not only
custom-designed pile grippers, MP upending hinges, jacket templates, etc. but
for the existing structures and equipment. FMEA （Failure Mode Effect
Assessment）and risk assessment are also performed.