METHOD FOR DETERMINATION OF CROSSWISE HYDRODYNAMIC FORCE AND ITS MOMENT IN SHIP COMPLEX MANEUVERING

摘要

FIELD: transport.;SUBSTANCE: invention relates to control over ship course in complex maneuvering at mooring, dynamic position or drifting. Proposed method consists in that prior to performing complex maneuvering, ship rotates under effects of active control means, for example, lateral thrusting propeller. Note here that ship angular ω and spinning moment M_pr produced by lateral thrusting propeller are calculated. Angular speed ω and spinning moment M_pr are used to define hydrodynamic factor c₂ and transverse component of hydrodynamic force Y_β, formed at ship hull in its motion with the help of log and formula: Y_β=C_yβ0,5ρυ²F_dp, here C _yβ≅c₂, ρ is water bulk density; υ is ship linear speed; F_dp is reduced area of centerline buttock.;EFFECT: higher efficiency and safety of complex maneuvering.