Novel ice breaking rudder based on Magnus effect

Abstract

The invention relates to a novel ice breaking rudder based on the Magnus effect. The novel ice-breaking rudder comprises an inner cylinder and an outer cylinder, wherein the two cylinders are coaxially arranged and are connected together through keys on the inner cylinder surface, and it is guaranteed that the inner cylinder drives the outer cylinder to rotate, and the rotation of the inner cylinder is driven by a motor and can realize clockwise or anticlockwise rotation of the inner cylinder. The motor is arranged between a stern cabin and the inner cylinder and is connected through a universal joint, and a linear bearing is additionally arranged at the part, extending towards the universal joint, of the inner cylinder so as to increase the structural strength. Conical particles are arranged on the surface of the outer cylinder, so that ice blocks at the tail can be well broken, and a propeller can be protected. According to the novel ice-breaking type cylindrical rudder, the Magnus effect is utilized, the generated rudder force is larger, the maneuverability of a ship is improved, the mounting and dismounting are convenient, and a stern shaft frame or a steering column does not need to be dismounted like a traditional rudder. The conical particles on the surface of the rudder column enhance the ice breaking capacity of a stern, and simultaneously protect the propeller.

Description

technical field [0001] The invention relates to the field of ice-breaking rudders, in particular to the field of a novel ice-breaking rudder based on the Magnus effect. Background technique [0002] The Magnus effect refers to a phenomenon that in a viscous incompressible fluid, a moving rotating object is subjected to a lift force, which affects the path of the object in air or water. The cylinder rotates clockwise in a uniform flow field with velocity V. According to the no-slip condition, the fluid near the surface of the cylinder will move with the rotation of the cylinder, so that the fluid velocity in the same direction as the cylinder’s rotation increases, while the fluid in the same direction as the cylinder rotates On the contrary, if the fluid velocity decreases, the fluid velocity near the surface of the right half of the cylinder is greater than the fluid velocity of the left half. According to Bernoulli's principle, the pressure of the right half of the cylinder...

AI Technical Summary

Problems solved by technology

The device designed through this mechanism is energy-saving and independent, but firstly, due to the limitation of the length-to-diameter ratio, the Magnus effect force is limited, and secondly, if you want to independently control each Magnus effect cylinder, the impact of wind or hydraulic Different adjustments are currently difficult to achieve

The patent with the domestic application number CN201521086987.X also has the problem of complicated installation and difficult adjustment through the stepped Magnus-type wind blade and wind turbine

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