BENCH FOR INVESTIGATION OF ICE FRICTION AGAINST SHIP HULL Russian patent published in 2025 - IPC G01M10/00 B63B71/20 F25C1/00 

FIELD: ships; floating crafts.

SUBSTANCE: invention relates to ship building, particularly, to experimental study of resistance to ship motion in ice caused by friction between ice floes and ship hull. In the shallow pool ice is frozen, or a route of artificial ice is laid on its bottom, rails with towing truck are arranged above said pool. Dynamometer is arranged at truck bottom to measure lengthwise force. Dynamometer is connected to a vertical displacement mechanism, to which the parallelogram is connected by a bar. On the opposite end of the parallelogram there is a bushing through which the pylon passes. Lower end of pylon is connected to model by means of hinge, and on upper end of pylon there is platform for attachment of weight, creating constant vertical load on model, moving on ice track. Vertical displacement mechanism serves to set parallelogram mechanism in horizontal position when model moves over ice track. Besides, dynamometer, which measures longitudinal force of model resistance as it moves along ice track, can be installed on lower end of pylon and connected to model by means of hinge. In order to change the conditions of testing on the ice track in front of the model during its movement, water can be supplied through a special device or a water layer of the required thickness can be created on the surface of the ice track by pouring water into a shallow basin.

EFFECT: expansion of the experimental capabilities of the stand for studying the friction resistance of ice on the ship's hull.

6 cl, 2 dwg