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High lift assembly for composite wing aircraft and composite wing aircraft

A compound wing and aircraft technology, which is applied in the direction of rotorcraft, aircraft, motor vehicles, etc., can solve the problems of lowering and lowering of the overall performance of the aircraft, and achieve the effect of increasing the lift-to-drag ratio, improving the flow field of the aircraft, and slowing down

Active Publication Date: 2021-11-02
CETC WUHU DIAMOND AIRCRAFT MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the struts in this layout have adverse interference to the wing, which induces early airflow separation of the wing at high angles of attack, which in turn leads to a decrease in CLmax and a decline in the overall performance of the aircraft

Method used

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  • High lift assembly for composite wing aircraft and composite wing aircraft
  • High lift assembly for composite wing aircraft and composite wing aircraft
  • High lift assembly for composite wing aircraft and composite wing aircraft

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Embodiment Construction

[0025] The technical solutions of the present application are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0026] Such as figure 1 As shown, the fuselage 1 of the mixed-wing aircraft is provided with a fixed wing 2 and an empennage 6 , and a plurality of rotors 3 are arranged on the fixed wing 2 through struts 4 . A strut 4 is respectively arranged on the two fixed wings 2, and the strut 4 is connected with the empennage 6.

[0027] Such as figure 2 As shown, due to the setting of the strut 4, when flying at a high angle of attack, factors such as the cross-flow component of the airflow pe...

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PUM

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Abstract

The invention relates to a high lift assembly for a composite wing aircraft and the composite wing aircraft. The lift augmentation assembly comprises: supporting rods used for installing a rotor wing and an empennage; and edge strips which are arranged on the supporting rods and are used for generating vortex so as to inject airflow into the airflow separation area of a fixed wing. The edge strips are installed on the supporting rod and located in front of the wings, and during flight, the edge strips generate stable high-strength vortexes to inject high-energy airflow into the airflow separation area, so that local airflow separation is weakened or even eliminated, the lift force of the composite wing aircraft is improved, and the flow field of the composite wing aircraft is improved.

Description

technical field [0001] The present application relates to the field of aviation equipment, in particular to a lift-increasing assembly for a compound-wing aircraft and the compound-wing aircraft. Background technique [0002] Mixed-wing layout aircraft is an aircraft that combines fixed-wing and multi-rotor aircraft. It uses multiple upward rotors to achieve vertical take-off and landing. At the same time, it has the wings of conventional aircraft to provide lift during cruise flight. Fixed wing with aspect ratio. [0003] The lift generated by the wing increases with the increase of the angle of attack, but when the angle of attack increases to a certain extent, the airflow separation on the upper surface gradually spreads to most of the airfoil, and a lift stall will occur at this time, that is, with the increase of the angle of attack A phenomenon in which lift increases but decreases. At this time, the lift coefficient of the aircraft reaches the maximum value C Lmax ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/22B64C23/06
CPCB64C27/22B64C23/06Y02T50/10
Inventor 曾锐刘毅周义赵新新李洪淼雷虎平丽号洪雨宁
Owner CETC WUHU DIAMOND AIRCRAFT MFG