CN209454975U - A kind of aircraft aerofoil fold mechanism - Google Patents

Abstract

The utility model relates to vehicle technology fields, specially a kind of aircraft aerofoil fold mechanism, including anamorphotic system, the anamorphotic system is arranged between aircraft fuselage and wing, the anamorphotic system includes several groups folding hinge and several groups fold plane, the anamorphotic system is flexibly connected with aircraft machine and machine respectively by the folding hinge, and the anamorphotic system remains that the leading edge of a wing and the anamorphotic system trailing edge are servo-actuated in deformation process；The advanced aerodynamic characteristic of the utility model comprehensive buzzard-type wing and folding wings, realizes novel sweepforward Fold-Combined variant manner, improves flight stability and wide fast domain flying quality.

Description

A kind of aircraft aerofoil fold mechanism

Technical field

The utility model relates to vehicle technology field more particularly to a kind of aircraft aerofoil fold mechanisms.

Background technique

" morphing aircraft " from broadly referring to actively change aerodynamic configuration, so as to obtain required flying quality, environment with The aircraft of task compatibility, this definition almost enumerate in aviation history as various methods used by change aircraft configuration.Become Body aircraft can by the outer shape of partly or wholly change of flight device, make aircraft efficiently, high-performance, adapt in real time it is a variety of Flight environment of vehicle and mission requirements are one of the important research directions of near space vehicle design.Wherein folding wings variant flies Device is a kind of variations being concerned in recent years.By Lockheed Martin Corporation in MAS (Morphing Aircraft Structures the folding wings variations) proposed in project are one of the Typical Representative of morphing aircraft research, folded wing It is divided into inner wing and outer wing, inner wing can fold 130 ° to fuselage to realize most 200% wing area deformation, while drop significantly It is low to soak area, to significantly reduce resistance.It is connected between outer wing, between wing body by hinge in the program, passes through flexible nothing It stitches covering and novel piezoelectric actuator realizes folded deformation, and applied in the small drone that a frame executes air force's task Test.The folding wings variations that scholars propose at present substantially represent the advance of swept-back wing, are generally basede on all-wing aircraft cloth Office, but the major defect of this layout designs is stability and handling deficiency.

Summary of the invention

The utility model overcomes above-mentioned the deficiencies in the prior art, provides a kind of aircraft aerofoil fold mechanism.This reality With the advanced aerodynamic characteristic of novel integrated buzzard-type wing and folding wings, novel sweepforward Fold-Combined variant manner is realized, improve flight Stability and wide fast domain flying quality.

The technical solution of the utility model includes:

A kind of course of new aircraft aerofoil anamorphotic system, realizes novel sweepforward Fold-Combined variant manner, the mechanism mainly by Anamorphotic system and drive system form, and anamorphotic system is mainly made of several folding hinges with fold plane, which puts down The shape that triangle, double triangle, quadrangle etc. have sweepback feature can be used in face shape, reduces supersonic speed drag due to shock wave；Become There are two the effects of shape system: first is that aircraft low speed landing state, since the presence of flying drilling angle is flight as lifting surface Device provides lift, is similar to dalta wing；Second is that as deformation mechanism when aircraft deforms.

When aircraft transonic speed cruises, which, which folds, drives wing sweepforward, reduces transonic speed resistance, improves transonic speed machine Dynamic property.Meanwhile lifting surface reduces after mechanism folding, parasite drag is further decreased, to reduce aircraft fuel consumption.Flight When device supersonic cruising, whole deformation mechanism can be folded completely, to realize the complete sweepforward of wing, form similar big triangle Wing layout, reduces supersonic speed drag due to shock wave

The anamorphotic system includes ten folding hinges and four fold planes, and four fold planes are respectively across supersonic speed Configuration converts folded inside face, across supersonic speed configuration converts folded face, low transonic speed configuration converts folded inside face and low Transonic speed configuration converts folded face, across the supersonic speed configuration conversion folded inside face, across supersonic speed configuration conversion outside Fold plane, low transonic speed configuration conversion folded inside face and low transonic speed configuration conversion folded face pass sequentially through two foldings Hinge is hinged, and across the supersonic speed configuration conversion folded inside face is hinged by two folding hinges and the fuselage, described Low transonic speed configuration conversion folded face is hinged by two folding hinges and the wing.

Further, the flat shape of the anamorphotic system is one of triangle, double triangle, quadrangle.

Further, across the supersonic speed configuration conversion folded inside face and across supersonic speed configuration conversion folded face it Between angle be unit angle folding one；In across the supersonic speed configuration conversion folded face and the low transonic speed configuration conversion Angle between the fold plane of side is unit angle folding two, the low transonic speed configuration conversion folded inside face and it is described it is low transonic speed Configuration converts the angle between folded face as unit angle folding three, the unit angle folding one, the unit angle folding two It is identical with the size of the unit angle folding three.

Further, across the supersonic speed configuration converts folded inside face, across supersonic speed configuration converts folded face, low Transonic speed configuration conversion folded inside face and low transonic speed configuration conversion folded face can be folded along folding hinge, and be folded Across the supersonic speed configuration conversion folded inside face, across supersonic speed configuration conversion folded face, the conversion of low transonic speed configuration afterwards Folded inside face and low transonic speed configuration conversion folded face are overlapped coplanar.

The utility model has the advantages that compared with the existing technology

1. can realize that aircraft wing shapes in flight course change with large scale while sweepforward angle；

2. deformation mechanism is also lifting surface in positive incidence flight, the dual function with variant and lift-rising；

3. variant mechanism manufactures and designs simply, at low cost, Project Realization is strong；

4. advanced compressible flexible material is cooperated to carry out Airfoil Design, have bigger lift-rising potentiality；

5. the dual variant aerodynamic advantages for having folding wings and buzzard-type wing；

6. deformation/carrying/aerodynamic lift face integration, structure efficiency are high.

Detailed description of the invention

Fig. 1 is the differential folding schematic diagram of variant aircraft of the utility model；

Fig. 2 is the triangle aerofoil anamorphotic system schematic diagram of the utility model；

Fig. 3 is the deformation and drive system arrangements schematic diagram of the utility model；

Fig. 4 is wing-folding sweepforward variant process schematic.

1- fuselage in figure；2- wing；3- anamorphotic system；Across the supersonic speed configuration of 14- converts folded inside face；15- is across ultrasound Fast configuration converts folded face；The low transonic speed configuration of 16- converts folded inside face；17- low transonic speed configuration conversion outside folding Folded face.

Specific embodiment

The utility model is described in detail below with reference to attached drawing.

In conjunction with shown in Fig. 1-4, disclosed the present embodiment includes 3 He of anamorphotic system, and the anamorphotic system is arranged in aircraft Between fuselage 1 and wing 2, the anamorphotic system 3 includes several groups folding hinge and several groups fold plane, the anamorphotic system 3 It is flexibly connected respectively with aircraft fuselage 1 and wing 2 by the folding hinge, the anamorphotic system 3 begins in deformation process Keep 2 leading edge of wing and 3 trailing edge of anamorphotic system servo-actuated eventually；Wherein anamorphotic system 3 is the full unfolded state of low speed, anamorphotic system 3` For transonic speed half unfolded state；It wherein is coated with flexible covering 20 on the outside of anamorphotic system, the anamorphotic system is driven by drive system Dynamic deformation, drive system are arranged on wing.

As shown in Fig. 2, the anamorphotic system 3 includes ten folding hinges and four fold planes, four fold planes point It Wei not across supersonic speed configuration conversion folded inside face 14, across supersonic speed configuration conversion folded face 15, low transonic speed configuration turn Folded inside face 16 and low transonic speed configuration conversion folded face 17 are changed, across the supersonic speed configuration converts folded inside face 14, across supersonic speed configuration conversion folded face 15, low transonic speed configuration conversion folded inside face 16 and low transonic speed configuration turn Changing folded face 17, to pass sequentially through two folding hinges hinged, and across the supersonic speed configuration conversion folded inside face 14 is logical It crosses two folding hinges and the fuselage 1 is hinged, the low transonic speed configuration conversion folded face 17 passes through two back flap hinges Chain and the wing 2 are hinged；Wherein ten folding hinges are respectively folded chain 44, folded chain 55, folded chain 66, folded chain 77, folded chain 88, folded chain 99, folded chain 10, folded chain 11 and folded chain 12.

Specifically, the flat shape of the anamorphotic system 3 be one of triangle, double triangle, quadrangle, either Other are with one of sweepback shape.

Specifically, across the supersonic speed configuration conversion folded inside face 14 and across supersonic speed configuration convert folded face 15 Between angle be unit angle folding one；Across the supersonic speed configuration conversion folded face 15 and the low transonic speed configuration turn The angle changed between folded inside face 16 is unit angle folding two, the low transonic speed configuration conversion folded inside face 16 and institute It states low transonic speed configuration and converts the angle between folded face 17 as unit angle folding three, it is the unit angle folding one, described Unit angle folding two is identical with the size of the unit angle folding three.

Specifically, across the supersonic speed configuration converts folded inside face 14, across supersonic speed configuration converts folded face 15, Low transonic speed configuration conversion folded inside face 16 and low transonic speed configuration conversion folded face 17 can be folded along folding hinge, And across the supersonic speed configuration converts folded inside face 14 after folding, across supersonic speed configuration converts folded face 15, low across sound Fast configuration conversion folded inside face 16 and low transonic speed configuration conversion folded face 17 are overlapped coplanar.

As shown in figure 3, the mechanism, which folds, drives wing sweepforward, reduce transonic speed resistance, improves transonic speed mobility.Together When, lifting surface reduces after mechanism folds, and parasite drag is further decreased, to reduce aircraft fuel consumption.Aircraft ultrasound When speed cruise, whole deformation mechanism can be folded completely, to realize the complete sweepforward of wing, form similar big dalta wing cloth Office reduces supersonic speed drag due to shock wave.

Above embodiments are exemplary description of this patent, do not limit its protection scope, those skilled in the art Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.

Claims (6)

1. a kind of aircraft aerofoil fold mechanism, which is characterized in that including anamorphotic system (3), the anamorphotic system setting is flying Between row device fuselage (1) and wing (2), the anamorphotic system (3) includes several groups folding hinge and several groups fold plane, described Anamorphotic system (3) is flexibly connected with aircraft fuselage (1) and wing (2) respectively by the folding hinge, the anamorphotic system (3) remain that wing (2) leading edge and anamorphotic system (3) trailing edge are servo-actuated in deformation process.

2. a kind of aircraft aerofoil fold mechanism according to claim 1, which is characterized in that anamorphotic system (3) packet Ten folding hinges and four fold planes are included, four fold planes are respectively that across supersonic speed configuration converts folded inside face (14), across supersonic speed configuration conversion folded face (15), low transonic speed configuration conversion folded inside face (16) and it is low transonic speed Configuration converts folded face (17), and across supersonic speed configuration conversion folded inside face (14), the conversion of across supersonic speed configuration are outer Side fold plane (15), low transonic speed configuration conversion folded inside face (16) and low transonic speed configuration convert folded face (17) according to It is secondary that pass through two folding hinges hinged, and across supersonic speed configuration conversion folded inside face (14) by two folding hinges with Hingedly, low transonic speed configuration conversion folded face (17) passes through two folding hinges and institute to the aircraft fuselage (1) It is hinged to state wing (2).

3. a kind of aircraft aerofoil fold mechanism according to claim 2, which is characterized in that the anamorphotic system (3) Flat shape is one of triangle, double triangle, quadrangle.

4. a kind of aircraft aerofoil fold mechanism according to claim 2, which is characterized in that across the supersonic speed configuration turns It changes folded inside face (14) and across supersonic speed configuration converts the angle between folded face (15) as unit angle folding one；It is described Angle between across supersonic speed configuration conversion folded face (15) and low transonic speed configuration conversion folded inside face (16) For unit angle folding two, low transonic speed configuration conversion folded inside face (16) and low transonic speed configuration conversion outside folding Angle between folded face (17) is unit angle folding three, the unit angle folding one, the unit angle folding two and the unit The size of angle folding three is identical.

5. a kind of aircraft aerofoil fold mechanism according to claim 2, which is characterized in that across the supersonic speed configuration turns Change folded inside face (14), across supersonic speed configuration conversion folded face (15), low transonic speed configuration conversion folded inside face (16) it can be folded along folding hinge with low transonic speed configuration conversion folded face (17), and across the supersonic speed structure after folding Type converts folded inside face (14), across supersonic speed configuration conversion folded face (15), low transonic speed configuration conversion folded inside Face (16) and low transonic speed configuration conversion folded face (17) are overlapped coplanar；Wing and across supersonic speed configuration convert folded inside The rear in face (14) is servo-actuated to realize that double unit angle folding step-by-step movements fold sweepforward variant process.

6. a kind of aircraft aerofoil fold mechanism according to claim 1, which is characterized in that aircraft aerofoil fold mechanism It can be laid out according to aircraft and be adjusted with the default multistage of mission requirements, distributed variant actuation mechanism, which can be used, can realize left and right wing Differential deformation control.