Maneuvering Motion Prediction based on Approximate Mathematical Model of Hydrodynamic Force between Ships
The determination of the hydrodynamic force between ships was the basis for studying the problems of ship encounter and overtaking.In order to quickly predict the maneuverability of overtaking ships,it was proposed that an ap-proximate mathematical model for predicting the hydrodynamic force and moment between ships,and a mathematical model for overtaking ship motion was established,at the same time,the established prediction method of maneuvering motion con-sidering the hydrodynamic force between ships was tested and studied.Based on the approximate mathematical model for predicting the hydrodynamic force and moment between ships,the variation law of the rudder angle,the hydrodynamic force and the non-dimensional coefficient of the moment between ships with the relative distance were compared and analyzed,and the hydrodynamic force and moment coefficients at different speeds were predicted and analyzed.Finally,the established mathematical model for overtaking ship motions was compared with the prediction results of the commercial navigation sim-ulator,and the maneuvering motion prediction between overtaking ships was also carried out.The results showed that the approximate mathematical model and the established maneuvering motion model had accurate prediction results and fast cal-culation speed,which could be used in the simulation system of the navigator.
hydrodynamic force between shipsapproximate modelmotion modelmaneuvering prediction
NETL
NSTL
万方数据
