A device for controlling the gap flow of combined control surfaces of aircraft

Abstract

The invention discloses a device for controlling the gap flow of a combined control surface of an aircraft, which comprises a front section of a rudder and a rear section of a rudder, and a gap is provided between the front section of the rudder and the rear section of the rudder; it is characterized in that: a flow blocking surface is provided between the gaps , the choke surface is made of flexible water-proof material, and the choke surface is at the same height as the rear section of the rudder; the two opposite sides of the choke surface are detachably connected to the front section of the rudder and the rear section of the rudder respectively, and the connection is located at the rudder Mid-section of the fore and aft rudder sections; the spoiler is fully deployed when the maximum rudder angle is reached. The invention can effectively control the flow in the gap of the combined control surface, improve the flow field around the control surface, slow down the occurrence of flow separation, significantly improve the rudder effect when the rudder angle is large, and improve the maneuverability of the aircraft; it can make the control surface stall Angle increases, which effectively shortens the turning radius of the aircraft and improves the safety of the aircraft's navigation; it is easy to refit the existing control surfaces without redesigning the control surfaces.

Description

technical field [0001] The invention relates to an aircraft control device, in particular to a device for controlling the gap flow of the combined control surface of the aircraft. Background technique [0002] Vessels such as ships, submarines and airplanes all need good maneuverability, and good maneuverability must be guaranteed by excellent control surfaces. For the purpose of meeting strength requirements or improving maneuverability, the control surfaces of many ships are designed in a combined form, that is, the control surfaces are composed of two or more parts, such as semi-suspended rudders and flap rudders for surface ships, and submarine rudders. The rudder-wing combined control surface and the tail control surface of the aircraft, etc. There is usually a gap between the two parts of the composite control surface. During the turning process, a flow from the pressure side of the rudder to the suction side is generated in the gap. Such flow will cause flow separa...

AI Technical Summary

Problems solved by technology

[0004] But its structure is relatively complicated, its lifespan is low, and its effect is not satisfactory.

And it is easy to fail after a period of time and it is also difficult to maintain

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