FIELD: measuring equipment.
SUBSTANCE: invention relates to hydrodynamics, measurement equipment, laboratory installations, shipbuilding. Method consists in that body in form of ship hull, immersed in liquid at waterline, or with specified draft, with installed on ship hull controlled electric motor with axisymmetric flywheel with vertical axis of rotation and resilient twisted rod semi-programmed non-uniform reverse-symmetric rotary movement relative to the vertical axis, comprising a step of delayed measured rotation at a limited angular interval and a step of measured accelerated rotation in the opposite direction, which is symmetrical to the first stage. On reverse rotation, along the measured values of angular velocity and body rotation angle, definite integral is calculated, operation of the moment of electric motor forces through consumed power is measured, according to which analytically, using two equations of energy change taking into account of energy consumption for losses in the engine, taking into account the known moment of inertia of the body, the axial body damping coefficient is determined.
EFFECT: broader functional capabilities when identifying hydrodynamic parameters of a ship-shaped body on software control systems.
1 cl, 1 dwg
