High-efficiency and environmentally-friendly shilling rudder body

Abstract

The invention relates to a high-efficiency and environmentally-friendly shilling rudder body, which comprises a rudder stock, wherein one end of the rudder stock is provided with rudder blade bodies; each rudder blade body comprises a rudder blade side plate; the front end of the rudder blade side plate is provided with a bow transom plate; the other side of the rudder blade side plate corresponding to the bow transom plate is provided with a stern transom plate; the end parts of the two ends of the rudder blade side plate are respectively provided with a swash plate; the upper end of the rudder blade side plate is provided with an upper swash plate, and the lower end of the rudder blade side plate is provided with a lower swash plate; and the rudder blade side plate is provided with a plate body reinforcing mechanism. The shilling rudder body has a simple structure manufacturing process and low manufacturing cost and is easy to generalize; due to the stern transom plate, the tail part of the rudder blade body forms circular flow, the lift coefficient of the rudder blade body is increased, and the moment of turning a ship is increased; since the upper swash plate and the lower swash plate are designed, transverse circular flow on the end part of the rudder blade body is suppressed, the longitudinal circular flow speed is increased, the revolving performance and the sideslip capacity of the ship are improved; the shilling rudder body has a simple and compact structure, low manufacturing cost and large lift coefficient; the rudder efficiency is increased; the course avoidance and the course keeping quality of the conventional rudder at a small rudder angle are improved; and a wide application range is guaranteed.

Description

technical field [0001] The invention relates to a fishtail rudder structure, in particular to a high-efficiency and environment-friendly fishtail rudder body, which belongs to the technical field of fishtail rudders. Background technique [0002] The rudder system is an important part of the ship's power system. In the past, most of the rudders were in the form of ordinary streamlined NACA, and the inland river ships mostly used simple rudder systems welded by flat plates. Due to the structural factors of the NACA line shape, its lift coefficient is small and its lift-to-drag ratio coefficient is small. Therefore, the maneuverability of the ship using this rudder system is relatively poor. In recent years, flap rudders have also been produced by manufacturers. Compared with conventional rudders, the lift coefficient and lift resistance of flap rudders have been greatly improved. However, due to the complex structure of the rudder and the high manufacturing cost, the popula...

AI Technical Summary

Problems solved by technology

Due to the structural factors of the NACA line shape, its lift coefficient is small and the lift-to-drag ratio coefficient is small

Therefore, the maneuverability of ships using this rudder system is relatively poor.

In recent years, flap rudders have also been produced by manufacturers. Compared with conventional rudders, the lift coefficient and lift resistance of flap rudders have been greatly improved. However, due to the complex structure of the rudder and the high manufacturing cost, the popularization and development of rudders with this structure has been slow.

Images