Apart from causing seasickness in unaclimatised people,
ship motions also increase fatigue among crewmembers
and raise the risk of injury. This is particularly true
of offshore vessels, fishing boats and other types where
the crew have to work on deck.
Rolls-Royce uses special software to simulate ship motions
in a seaway and evaluate hull designs and stabiliser
solutions to minimise them. Seen here is a candidate
offshore vessel in 6-7m high waves. Image courtesy of
Jarle Ulstein.
Features and benefits
- Extensive use of CFD methods throughout product
and ship design
- Vessel, propulsion system, motion control and other
systems can be studied and situations and sea states
modelled
- The customer can see at an early stage of design
the seakeeping and performance of the proposed vessel
- Rolls-Royce uses specially developed software and
CFD programs and obtains very good correlation between
calculated motions and powering, model tank tests
and measurements made on vessels in service
- Mathematical modelling and simulation are used
in maximising roll reduction using passive or active
stabilising systems
Rolls-Royce places a high premium on reducing ship
motions in its ship designs, and provides systems for
roll reduction. Simulation is used widely in this work.
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