METHOD OF DEFINING SHIP MATHEMATICAL MODEL HYDRODYNAMIC PARAMETERS Russian patent published in 2013 - IPC B63H25/52 

FIELD: transport.

SUBSTANCE: invention relates to navigation and can be used for forecasting ship manoeuvres. Proposed method comprises application of ship motion mathematical model and two fore and aft points F and A points, respectively, spaced apart over the centre plane length, Defining current coordinates of ship motion kinematic parameters in moving coordinate system ZX0Y to define current hydrodynamic parameters of ship mathematical model and to execute computer simulation of the basis of the latter. Moving coordinate system ZX0Y is related to the ship. Acceleration transducers are used to define in real time the current magnitudes of lengthwise, crosswise and angular accelerations of fore and aft points F (w_fx1, W_fy1, ε) and A (w_ax1, W_ay1, ε) in fixed coordinate system X₁0₁Y₁. Said magnitudes are used to define current magnitudes of ship motion kinematic parameters.

EFFECT: higher accuracy of forecast.

2 cl, 1 dwg