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OMC has a long history in the area of mooring analysis and design and Executive Director Dr Terry O’Brien has an established reputation as a world authority in this field.

Lifetime experience stems from deep-sea moorings at phosphate ports

Dr O’Brien’s numerical ship motion model (SPMS), which is the working “engine” of the company’s DUKC® technology, was developed during the time of his involvement with the deep-sea moorings at the phosphate ports of Christmas Island and Nauru in the 1960s. This followed an approach from the British Phosphate Commissioners to work on solutions for mooring the large phosphate ships at these ports.

Realising there was a niche business market for his ship motion model, Dr O’Brien left academia in 1987 after a distinguished 22-year career to develop SPMS into a working system (DUKC® ) for commercial shipping and to set up OMC.

As well as the design of deep-sea moorings, Dr O’Brien’s SPMS model is used to analyse the forces in mooring lines and fenders of conventional moorings especially when exposed to ocean swells, long waves and interaction forces generated by passing ships.

Dr O’Brien returned to Christmas Island in December 2009 to monitor the laying of a new single-point mooring system he designed for cruise ships such as the ‘Pacific Sun’ which used the new mooring for the first time later that month on December 23.

He has continued to be heavily involved in the analysis, design and operation of mooring systems and many of the new port developments along the West Australian coast have involved use of DUKC® technology as an essential component of the jetty design.

Dr O’Brien has since upgraded his numerical model by adding the capacity to model the behaviour of the MoorMaster ™MM20 units manufactured by Cavotec including validation tests of their behaviour in conditions involving heavy swells.

OMC provides expert advice on ship motions for use in mooring design and ship interaction through a variety of techniques involving full scale measurements and ship motion modelling.

The Melbourne-based company also has a team of professionals highly experienced in hydrodynamic and environmental modelling and forecasting. This includes waves, tide, current and particle transport analysis and modelling.