Abstract

T-shaped launching barge HYSY229 is used to transport the PY3-1 jacket from Penglai to South China Sea. Field measurement was carried out using inertial navigation system (INS) and global positioning system (GPS) for the safety of dry-towing. Signals of pitch, roll and accelerations of six-degrees-of-freedom motions of the barge are monitored during the transportation. The measurements lasted 19 days starting from 9th July to 28th July in 2013. The maximum peak-peak value recorded for roll and pitch motions is 3.16 and 3.15 degrees respectively, which is smaller than the threshold of design value. Potential flow theory code MOSES is adopted to predict the motions of the barge. Results of numerical simulation and motion monitoring are compared in short term sea state using the environmental parameters observed. Fair well agreements are achieved.

Keywords:
peak-peak value, short term sea state, maximum peak-peak value, dry-towing process, wave height, field measurement, statistical result, transportation, pitch motion, maximum value
Subjects:
Information Management and Systems
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2014. International Society of Offshore and Polar Engineers
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