METHOD OF DEFINITION OF A METACENTRIC HEIGHT OF A SHIP AND A SYSTEM FOR ITS REALIZATION Russian patent published in 2004 - IPC

FIELD: petroleum and chemical industries.

SUBSTANCE: the invention is dealt with the means of monitoring of an intact platform stability of a ship and may be used for the ships located on a berth or an offshore mooring and being in process of cargo handling operations. A method of definition of a metacentric height of a ship of displacement D is performed by a ship heeling test of a roll moment_{Мan and definition of the increment of the roll angle , and a metacentric height is calculated by the formula h = Simultaneously with the heeling test of a ship they determine speed of change of an increment of a roll angle, and the measurement of an increment of the roll angle is conducted at a null speed of its change. The system for definition of a metacentric height of a ship contains gauges to measure a displacement torque and a roll angle, a data processing unit connected with a computation unit, a ship heeling unit, keys located accordingly between outputs of gauges of the torque moment, displacement, a roll angle and inputs of the data processing unit, and also a time signals matching unit, which input is connected to an output of the roll angle gauge, and its output - with control inputs of keys. The invention allows to increase accuracy of definition of a ship metacentric height and to decrease the time duration of the procedure.}

EFFECT: the invention ensures an increase of accuracy of a ship metacentric height definition and a decrease of the procedure duration.

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