SU115212A1 - The stabilizer of ship roll in the form of a sliding horizontal self-turning roll - Google Patents

Description

A disadvantage of the known soothing rudders is that they have a complex drive for turning them to the middle position, operating with gyroscopic or inertial devices.

The proposed device eliminates the aforementioned disadvantages of the known soothing rudders in that, instead of gyroscopic and inertial drives, conventional springs are used to return to the middle position. The drawing shows a steering wheel with a plate prul different (Q), the same steering wheel, but with a torsion spring (b), a steering wheel with coil springs (c) and a steering wheel with pneumatic drive (d).

The pitching damper in the form of a sliding horizontal self-rotating rudder consists of: a feather shaft /, a spool 2. springs 3 or a pneumatic cylinder 4 with a piston 5 and a rod 6 and angle limiters 7 located outside the vessel’s hull or 8 inside it.

Springs can be placed inside the handlebar or outside the handlebar housing. In the first embodiment, the puller 2 is fixed in the ship hull stationary; in the remaining embodiments, the puller passes through the gland bearing 9 inside the hull.

When not in use, the soothing handlebars are retracted inside the case.

The action of the soothing rudders is based on the fact that during the ship’s rolling under the action of the equal force of hydrodynamic pressure P passing the axis of the rudder in front of the rudder, the rudder is deflected in the direction of increasing the angle of attack, while power increases.

At the time of finding the angular velocity of the vessel, the return of the rudder to the middle position is carried out by means of springs 5 or by means of pneumatics.

Subject invention

A ship rolling damper in the form of an extendable horizontal self-rotating roll, characterized in that, in order to simplify the return steering wheel to the middle position, it (the damper) is equipped with springs, and the axis of rotation of the feather roll is behind the resulting hydrodynamic pressure on the steering wheel.

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