Conseil national de recherches du Canada. Génie océanique, côtier et fluvial
2014 Oceans - St. John's, OCEANS 2014, Sept. 14-19, 2014, St John's, Newfoundland and Labrador
Electric currents; MATLAB; Runge Kutta methods; Wind; Current loads; Environmental conditions; Hydrodynamic derivatives; maneuvering; Maneuvering capability; Relative velocity; Single parameter; track deviation; Equations of motion
The equations of motion of a maneuvering vessel under the action of wind, current, rudder and propulsion are solved by the MATLAB Runge-Kutta solver ode45. The hydrodynamic derivatives used are those presented by Clarke et al. (1982). Wind and current loads are applied to segments of the vessel via a relative velocity formulation and drag coefficients. Course control is achieved by autopilot gains derived from a first order Nomoto approximation. The intent is to provide a tool for assessing a vessel's maneuvering capabilities in terms of a simple single parameter (track deviation) under various environmental conditions. Results of simulations are presented for various wind and current scenarios.
Date de publication
OCEANS 2014 MTS/IEEE, 7003296 (14 septembre 2014).