CN112265631B - Box-type folding wing unmanned aerial vehicle layout capable of realizing modular assembly with variable aspect ratio - Google Patents
Box-type folding wing unmanned aerial vehicle layout capable of realizing modular assembly with variable aspect ratio Download PDFInfo
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- CN112265631B CN112265631B CN202011107127.5A CN202011107127A CN112265631B CN 112265631 B CN112265631 B CN 112265631B CN 202011107127 A CN202011107127 A CN 202011107127A CN 112265631 B CN112265631 B CN 112265631B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
- B64C3/56—Folding or collapsing to reduce overall dimensions of aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/25—Fixed-wing aircraft
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Abstract
The invention belongs to the technical field of aviation unmanned aerial vehicles, and discloses a variable-aspect-ratio modularized assembled box-type folding wing unmanned aerial vehicle layout which comprises an unmanned aerial vehicle body and box-type folding wings, wherein the unmanned aerial vehicle body consists of a body task section, a body avionic section and a body power section which are sequentially assembled, each box-type folding wing comprises a pair of front wings, a pair of rear wings, conformal arc wing tips and wing root flexible skin sections, the pair of front wings are arranged on the lower side of the unmanned aerial vehicle body, the pair of rear wings are arranged on the upper side of the unmanned aerial vehicle body, the wing roots of the pair of front wings and the wing roots of the pair of rear wings are connected by the wing root flexible skin sections, the wing root flexible skin sections are movably connected with the unmanned aerial vehicle body, the wing tips of the front wings and the rear wings are provided with wing tip flexible skin sections, and the wing tip flexible skin sections of the front wings and the rear wings on the same side are connected by the conformal arc wing tips. The invention has the advantages of modular assembly capability, strong task adaptability, adjustable aspect ratio, high-speed short-time flight capability and low-speed long-time cruise capability.
Description
Technical Field
The invention belongs to the technical field of aviation unmanned aerial vehicles, and relates to a box-type folding wing unmanned aerial vehicle layout capable of realizing modularized assembly with variable aspect ratio.
Background
In the field of aviation unmanned aerial vehicles, unmanned aerial vehicles with various novel layouts are the most important in the development of all aviation countries, particularly folding wing unmanned aerial vehicles meeting variable aspect ratios are attracting attention in development and are signs of the economic strength, the scientific and technological strength, the basic industry and other comprehensive strength of the countries. For the existing folding wing type unmanned aerial vehicle, a larger development space exists. Firstly, the existing folding wing type unmanned aerial vehicle does not have the multitask modularization assembling capability, cannot give consideration to various flight states such as quick striking of high-speed jet propulsion and long-term reconnaissance of low-speed propeller propulsion, and cannot change the load and power form according to the task requirement, such as various powers of a propeller, a miniature solid rocket engine and the like; secondly, the existing folding wing type unmanned aerial vehicle does not have the aspect ratio variation capability, the folding of the folding wing type unmanned aerial vehicle mainly comprises two states of storage and launching, the aspect ratio is fixed after the wings are unfolded (such as an American spring knife unmanned aerial vehicle), and the variation requirements of various flight speeds cannot be met. In addition, the existing folding wing unmanned aerial vehicle is large in aspect ratio, adopts propellers for propulsion more and does not have short-time high-speed flight capability.
Disclosure of Invention
The invention aims to provide a box-type folding wing unmanned aerial vehicle layout capable of realizing modularized assembly with variable aspect ratio, and aims to solve the problems that an existing folding wing unmanned aerial vehicle cannot be replaced according to task requirements, and multiple flight speed change requirements cannot be met at fixed aspect ratio.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a box-type folding wing unmanned aerial vehicle overall arrangement that variable aspect ratio modularization was assembled, includes unmanned aerial vehicle fuselage and box-type folding wing, the unmanned aerial vehicle fuselage comprises fuselage mission segment, fuselage avionics section and the fuselage power section of assembling in proper order, box-type folding wing includes a pair of front wing, a pair of back wing, shape preserving circular arc wingtip and the flexible covering section of wing root, a pair of front wing arrange in the downside of unmanned aerial vehicle fuselage, a pair of back wing arrange in the upside of unmanned aerial vehicle fuselage, all adopt the flexible covering section of wing root to connect between the wing root of a pair of front wing and a pair of back wing, the flexible covering section of wing root with unmanned aerial vehicle fuselage swing joint, the wingtip of front wing and back wing all is provided with the flexible covering section of wingtip, connects through shape preserving circular arc wingtip between the flexible covering section of front wing and the back wing of homonymy.
By adopting the technical scheme, the invention has the following technical effects:
(1) the requirement of the shooting size of the cylinder is met. The layout that the conformal arc wing tips are connected with the front wing and the rear wing is adopted, so that the conformal arc wing tips can be completely attached to the fuselage when the unmanned aerial vehicle is in a folded state, the overall structural strength of the box-type wing is improved, the size of the folded wing is reduced, and the requirements on the size of a cylindrical jet are met;
(2) the method has the advantages of multi-task modular assembly capability and strong task adaptability. The unmanned aerial vehicle can selectively load different task section loads such as a photoelectric head, a armor piercing projectile, a combustion projectile and the like according to actual task requirements, and the power section can select different power propulsion devices such as micro solid rocket engine propulsion or propeller propulsion and the like according to task requirements;
(3) the method has the capability of changing the aspect ratio in the flight process. The flexible skin sections of the front wing and the rear wing are connected and distributed, the wing aspect ratio can be changed by moving the flexible skin sections of the wing root according to task requirements, and therefore the aircraft has high-speed short-time flight capability and low-speed long-time cruise capability. By adopting the layout of the box-type folding wings with the variable aspect ratio, the lift-drag ratio of the whole aircraft is high, the slope of a lift line is large, the stall attack angle is small, and the requirement of low-speed long-endurance flight can be met; when the aspect ratio is smaller, the load of the folding wing is higher, and high-speed short-time flight can be realized.
Drawings
Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle layout of a box-type folding wing modularly assembled with a variable aspect ratio according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a layout high aspect ratio state of a variable aspect ratio modularly assembled box-type folding wing unmanned aerial vehicle according to an embodiment of the present invention;
fig. 3 is a schematic view of a layout of a box-type folding wing unmanned aerial vehicle with variable aspect ratio and modular assembly according to an embodiment of the present invention, showing a low aspect ratio state;
fig. 4 is a schematic layout and folding state diagram of a variable aspect ratio modularly assembled box-type folding wing unmanned aerial vehicle according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and embodiments:
reference numerals in the drawings of the specification include: the aircraft comprises a fuselage mission section 1, a fuselage avionics section 2, a fuselage power section 3, a front wing 4, a rear wing 5, a conformal arc wingtip 6, a wing root flexible skin section 7 and a wing tip flexible skin section 8.
As shown in fig. 1, a box-type folding wing unmanned aerial vehicle layout that variable aspect ratio modularization was assembled, including unmanned aerial vehicle fuselage and box-type folding wing, the unmanned aerial vehicle fuselage is cylindric structure, the unmanned aerial vehicle fuselage comprises fuselage task segment, fuselage avionics section and fuselage power section of assembling in proper order, box-type folding wing includes a pair of front wing, a pair of back wing, shape preserving circular arc wingtip and wing root flexible skin section, a pair of front wing arranges the downside at the unmanned aerial vehicle fuselage, a pair of back wing arranges the upside at the unmanned aerial vehicle fuselage, all adopt wing root flexible skin section to connect between the wing root of a pair of front wing and between the wing root of a pair of back wing, wing root flexible skin section and unmanned aerial vehicle fuselage swing joint, the wingtips of front wing and back wing all are provided with wingtip flexible skin section, pass through shape preserving circular arc wingtip fixed connection between the wing tip flexible skin section of front wing and back wing of homonymy.
The unmanned aerial vehicle layout of the box-type folding wing assembled in a modularization mode with variable aspect ratio is in three states: in the high aspect ratio state, as shown in fig. 2, the flexible skin section of the wing root is moved to realize the adjustment of the high aspect ratio state, and the flexible skin section of the wing root is fixed with the unmanned aerial vehicle body after the adjustment, so that the full lift-drag ratio is high, the slope of the lift line is large, the stall attack angle is small, and the requirement of low-speed long-endurance flight can be met; in the low aspect ratio state, as shown in fig. 3, the adjustment of the low aspect ratio state is realized by moving the flexible skin section of the wing root, and the folded wing has higher load in the state, so that the high-speed short-time flight can be realized; fold condition, as shown in fig. 4, respectively with front wing and back wing close up and put in the lower front side and the last rear side of unmanned aerial vehicle fuselage, half parcel laminating in the middle section of unmanned aerial vehicle fuselage of conformal circular arc wing tip simultaneously to reduce the size of the folded size of wing, compatible section of thick bamboo penetrates the size demand.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (1)
1. The utility model provides a box-type folding wing unmanned aerial vehicle overall arrangement that variable aspect ratio modularization was assembled which characterized in that: including unmanned aerial vehicle fuselage and box-shaped folding wing, the unmanned aerial vehicle fuselage comprises fuselage task section, fuselage avionics section and the fuselage power section of assembling in proper order, box-shaped folding wing includes a pair of front wing, a pair of back wing, shape preserving circular arc wingtip and the flexible skin section of wing root, a pair of front wing arrange in the downside of unmanned aerial vehicle fuselage, a pair of back wing arrange in the upside of unmanned aerial vehicle fuselage all adopts the flexible skin section of wing root to connect between the wing root of a pair of front wing and between the wing root of a pair of back wing, the flexible skin section of wing root with unmanned aerial vehicle fuselage swing joint, the wingtip of front wing and back wing all is provided with the flexible skin section of wingtip, connects through shape preserving circular arc wingtip between the flexible skin section of the front wing of homonymy and back wing.
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| CN202011107127.5A CN112265631B (en) | 2020-10-16 | 2020-10-16 | Box-type folding wing unmanned aerial vehicle layout capable of realizing modular assembly with variable aspect ratio |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112937834B (en) * | 2021-04-14 | 2022-06-28 | 北京航空航天大学 | Adopt small-size unmanned aerial vehicle of antithetical couplet wing formula aerodynamic configuration |
| CN115367097A (en) * | 2022-10-24 | 2022-11-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Novel large-scale variant aircraft |
| CN116119052A (en) * | 2023-01-06 | 2023-05-16 | 南京理工大学紫金学院 | Fixed wing unmanned aerial vehicle with foldable wings |
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