Aircraft wing box and wing thereof

Abstract

The present application belongs to the technical field of aircraft wing design, and specifically relates to an aircraft wing box and a wing thereof, wherein the aircraft wing box is designed with a first telescopic rod, a first fourth telescopic rod, a second first telescopic rod, a second second telescopic rod, a second third telescopic rod, a third third telescopic rod, a third fourth telescopic rod, and a fourth fourth telescopic rod hinged between two wing ribs, and the relative positions of the two wing ribs can be controlled by adjusting the effective lengths of the first telescopic rod, the first fourth telescopic rod, the second first telescopic rod, the second second telescopic rod, the second third telescopic rod, the third third telescopic rod, the third fourth telescopic rod, and the fourth fourth telescopic rod, so as to achieve adjustment of the sweep angle, the span and the curvature of the aircraft wing, and the size of the wing rib will not change during the adjustment process, so as to ensure effective load transmission and achieve a low aspect ratio to meet the requirements of high-speed flight of the aircraft.

Description

Technical Field

[0001] This application belongs to the field of aircraft wing design technology, specifically relating to an aircraft wing box and its wing. Background Technology

[0002] In order to meet the needs of high and low speed flight and long endurance, the sweep angle, span and camber of the aircraft wing need to be adjusted in real time. For this purpose, deformable wings are designed. When the current deformable wing deforms, its span and chord length change in opposite directions, that is, when the span increases, the chord length decreases, which makes it difficult to meet the requirements of low aspect ratio for high-speed flight of aircraft.

[0003] This application is made in view of the aforementioned technical deficiencies.

[0004] It should be noted that the above background information is only used to assist in understanding the inventive concept and technical solution of this invention, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0005] The purpose of this application is to provide an aircraft wing box and its wing to overcome or mitigate at least one of the known technical defects.

[0006] The technical solution of this application is:

[0007] One aspect provides an aircraft wing box, comprising:

[0008] Two ribs are arranged opposite each other, namely the first rib and the second rib; each rib is rectangular, and its apex is named the first apex, the second apex, the third apex, and the fourth apex in sequence;

[0009] The first telescopic rod has one end hinged to the first apex of the first wing rib and the other end hinged to the first apex of the second wing rib.

[0010] The first four telescopic rod has one end hinged to the first apex of the first wing rib and the other end hinged to the fourth apex of the second wing rib.

[0011] The second telescopic rod has one end hinged to the second apex of the first wing rib, and the other end hinged to the first apex of the second wing rib.

[0012] The second telescopic rod has one end hinged to the second apex of the first wing rib, and the other end hinged to the second apex of the second wing rib.

[0013] The second and third telescopic rods are hinged at one end to the second apex of the first wing rib and at the other end to the third apex of the second wing rib.

[0014] The third telescopic rod has one end hinged to the third apex of the first wing rib and the other end hinged to the third apex of the second wing rib.

[0015] The third and fourth telescopic rods are hinged at one end to the third apex of the first wing rib and at the other end to the fourth apex of the second wing rib.

[0016] The fourth telescopic rod has one end hinged to the fourth apex of the first wing rib and the other end hinged to the fourth apex of the second wing rib.

[0017] According to at least one embodiment of this application, the two ends of the first telescopic rod, the first fourth telescopic rod, the second first telescopic rod, the second second telescopic rod, the second third telescopic rod, the third third telescopic rod, the third fourth telescopic rod, and the fourth fourth telescopic rod of the above-mentioned aircraft wing box are connected to the corresponding apex positions by spherical joints.

[0018] According to at least one embodiment of this application, displacement sensors are provided on the first telescopic rod, the first fourth telescopic rod, the second telescopic rod, the second second telescopic rod, the second third telescopic rod, the third third telescopic rod, the third fourth telescopic rod, and the fourth fourth telescopic rod of the aircraft wing box described above.

[0019] The aircraft wing box also includes:

[0020] The controller is connected to the first telescopic rod, the first fourth telescopic rod, the second first telescopic rod, the second second telescopic rod, the second third telescopic rod, the third third telescopic rod, the third fourth telescopic rod, and the fourth fourth telescopic rod, and their displacement sensors, and performs negative feedback control on the effective length of the first first telescopic rod, the first fourth telescopic rod, the second first telescopic rod, the second second telescopic rod, the second third telescopic rod, the third third telescopic rod, the third fourth telescopic rod, and the fourth fourth telescopic rod.

[0021] According to at least one embodiment of this application, the above-mentioned aircraft wing box has a controller connected to a flight control system, which controls the effective lengths of the first telescopic rod, the first fourth telescopic rod, the second first telescopic rod, the second second telescopic rod, the second third telescopic rod, the third third telescopic rod, the third fourth telescopic rod, and the fourth fourth telescopic rod according to the wing deformation command transmitted by the flight control system.

[0022] On the other hand, an aircraft wing is provided, including:

[0023] Any of the aforementioned aircraft wing boxes;

[0024] The skin covers the outside of the aircraft wing box.

[0025] According to at least one embodiment of this application, the above-mentioned aircraft wing, wing rib and its corresponding first telescopic rod, first fourth telescopic rod, second first telescopic rod, second second telescopic rod, second third telescopic rod, third third telescopic rod, third fourth telescopic rod and fourth fourth telescopic rod are in multiple sets, and are connected sequentially along the wing span. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an aircraft wing box provided in an embodiment of this application;

[0027] Figure 2 This is a partial schematic diagram of an aircraft wing box provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of aircraft wing deformation provided in an embodiment of this application;

[0029] in:

[0030] 1-Wing rib; 2-First telescopic rod; 3-First fourth telescopic rod; 4-Second telescopic rod; 5-Second second telescopic rod; 6-Second third telescopic rod; 7-Third third telescopic rod; 8-Third fourth telescopic rod; 9-Fourth fourth telescopic rod; 10-Displacement sensor; 11-Controller; 12-Skin;

[0031] A - First vertex; B - Second vertex; C - Third vertex; D - Fourth vertex.

[0032] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0033] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0034] Furthermore, unless otherwise defined, the technical or scientific terms used in this application description shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., used in this application description to indicate relative direction or positional relationship are used only to indicate relative orientation or positional relationship, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation on this application. The terms "first," "second," "third," and similar terms used in this application description are used only for descriptive purposes to distinguish different components, and should not be construed as indicating or implying relative importance. The terms "a," "one," or "the," etc., used in this application description should not be construed as an absolute limitation on quantity, but should be construed as indicating the existence of at least one. The terms "including," "comprising," etc., used in this application description mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0035] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, terms such as “installation,” “connection,” and “linkage” used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances.

[0036] The following is in conjunction with the appendix Figures 1 to 3 This application will be described in further detail.

[0037] One aspect provides an aircraft wing box, comprising:

[0038] Two ribs 1 are arranged opposite each other, namely the first rib and the second rib; each rib 1 is rectangular, and its apex parts are respectively the first apex part A, the second apex part B, the third apex part C, and the fourth apex part D;

[0039] The first telescopic rod 2 has one end hinged to the first apex A of the first wing rib, and the other end hinged to the first apex A of the second wing rib.

[0040] The first four telescopic rod 3 has one end hinged to the first apex A of the first wing rib and the other end hinged to the fourth apex D of the second wing rib.

[0041] The second telescopic rod 4 has one end hinged to the second apex of the first wing rib at B, and the other end hinged to the first apex of the second wing rib at A.

[0042] The second telescopic rod 5 has one end hinged to the second apex of the first wing rib at point B, and the other end hinged to the second apex of the second wing rib at point B.

[0043] The second and third telescopic rod 6 has one end hinged to the second apex of the first wing rib at point B, and the other end hinged to the third apex of the second wing rib at point C.

[0044] The third telescopic rod 7 has one end hinged to the third apex C of the first wing rib and the other end hinged to the third apex C of the second wing rib.

[0045] The third and fourth telescopic rod 8 has one end hinged to the third apex C of the first wing rib and the other end hinged to the fourth apex D of the second wing rib.

[0046] The fourth telescopic rod 9 has one end hinged to the fourth apex D of the first wing rib and the other end hinged to the fourth apex D of the second wing rib.

[0047] Regarding the aircraft wing box disclosed in the above embodiments, those skilled in the art will understand that its design involves the first telescopic rod 2, the first fourth telescopic rod 3, the second first telescopic rod 4, the second second telescopic rod 5, the second third telescopic rod 6, the third third telescopic rod 7, the third fourth telescopic rod 8, and the fourth fourth telescopic rod 9 hinged between two wing ribs 1. By adjusting the effective length of the first telescopic rod 2, the first fourth telescopic rod 3, the second first telescopic rod 4, the second second telescopic rod 5, the second third telescopic rod 6, the third third telescopic rod 7, the third fourth telescopic rod 8, and the fourth fourth telescopic rod 9, the relative position of the two wing ribs 1 can be controlled, thereby achieving the adjustment of the aircraft wing sweep angle, span, and camber. Furthermore, the dimensions of the wing ribs 1 do not change during the adjustment process, ensuring effective load transfer and achieving a low aspect ratio to meet the requirements of high-speed aircraft flight. Moreover, the structure is supported in multiple places in the form of triangular pyramids, making the overall structure stable, reliable, and easy to adjust.

[0048] In some optional embodiments, the two ends of the first telescopic rod 2, the first fourth telescopic rod 3, the second first telescopic rod 4, the second second telescopic rod 5, the second third telescopic rod 6, the third third telescopic rod 7, the third fourth telescopic rod 8, and the fourth fourth telescopic rod 9 of the above-mentioned aircraft wing box are connected to the corresponding apex positions by spherical pairs. The spherical pair interfaces at the same apex position should be as close as possible or overlap to reduce eccentric loads.

[0049] In some optional embodiments, displacement sensors 10 are provided on the first telescopic rod 2, the first fourth telescopic rod 3, the second first telescopic rod 4, the second second telescopic rod 5, the second third telescopic rod 6, the third third telescopic rod 7, the third fourth telescopic rod 8, and the fourth fourth telescopic rod 9 of the above-mentioned aircraft wing box.

[0050] The aircraft wing box also includes:

[0051] The controller 11 is connected to the first telescopic rod 2, the first fourth telescopic rod 3, the second first telescopic rod 4, the second second telescopic rod 5, the second third telescopic rod 6, the third third telescopic rod 7, the third fourth telescopic rod 8, the fourth fourth telescopic rod 9 and their displacement sensors 10, and performs negative feedback control on the effective length of the first telescopic rod 2, the first fourth telescopic rod 3, the second first telescopic rod 4, the second second telescopic rod 5, the second third telescopic rod 6, the third third telescopic rod 7, the third fourth telescopic rod 8 and the fourth fourth telescopic rod 9.

[0052] In some optional embodiments, the aforementioned aircraft wing box controller 11 is connected to the flight control system and controls the effective length of the first telescopic boom 2, the first fourth telescopic boom 3, the second first telescopic boom 4, the second second telescopic boom 5, the second third telescopic boom 6, the third third telescopic boom 7, the third fourth telescopic boom 8, and the fourth fourth telescopic boom 9 according to the wing deformation command transmitted by the flight control system.

[0053] On the other hand, an aircraft wing is provided, including:

[0054] Any of the aforementioned aircraft wing boxes;

[0055] The skin 12, which covers the outside of the aircraft wing box, is elastic and can adapt to changes in the relative position of the two wing ribs 1.

[0056] In some optional embodiments, the above-mentioned aircraft wing, wing rib 1 and its corresponding first telescopic rod 2, first fourth telescopic rod 3, second first telescopic rod 4, second second telescopic rod 5, second third telescopic rod 6, third third telescopic rod 7, third fourth telescopic rod 8 and fourth fourth telescopic rod 9 are in multiple sets and are connected sequentially along the wing span.

[0057] The description of the aircraft wing disclosed in the above embodiments, including the aircraft wing box disclosed in the above embodiments, is relatively simple. For specific details, please refer to the relevant description of the aircraft wing box. The technical effects can also be referred to the technical effects of the relevant parts of the aircraft wing box, which will not be repeated here.

[0058] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0059] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. An aircraft wing box, characterized in that: include: Two wing ribs (1) are arranged opposite to each other, namely a first wing rib and a second wing rib; Each of the wing ribs (1) is rectangular, and the top corners thereof are sequentially a first top corner (A), a second top corner (B), a third top corner (C), and a fourth top corner (D); A first telescopic rod (2), one end of which is hinged to a first top corner portion (A) of the first wing rib, and the other end of which is hinged to a first top corner portion (A) of the second wing rib; A first four telescopic rod (3), one end of which is hinged to a first top corner portion (A) of the first wing rib, and the other end of which is hinged to a fourth top corner portion (D) of the second wing rib; A second telescopic rod (4), one end of which is hinged to the second top corner portion (B) of the first wing rib, and the other end of which is hinged to the first top corner portion (A) of the second wing rib; A second telescopic rod (5), one end of which is hinged to the second top corner portion (B) of the first wing rib, and the other end of which is hinged to the second top corner portion (B) of the second wing rib; A second telescopic rod (6), one end of which is hinged to the second top corner portion (B) of the first wing rib, and the other end of which is hinged to the third top corner portion (C) of the second wing rib; A third telescopic rod (7), one end of which is hinged to the third top corner portion (C) of the first wing rib, and the other end of which is hinged to the third top corner portion (C) of the second wing rib; A third fourth telescopic rod (8), one end of which is hinged to the third top corner portion (C) of the first wing rib, and the other end of which is hinged to the fourth top corner portion (D) of the second wing rib; a fourth telescopic rod (9), one end of which is hinged to the fourth top corner portion (D) of the first wing rib, and the other end of which is hinged to the fourth top corner portion (D) of the second wing rib; The first telescopic rod (2), the first-fourth telescopic rod (3), the second-first telescopic rod (4), the second-second telescopic rod (5), the second-third telescopic rod (6), the third-third telescopic rod (7), the third-fourth telescopic rod (8), and the fourth-fourth telescopic rod (9) are all provided with displacement sensors (10); The aircraft wing box also includes: A controller (11) is connected to the first telescopic rod (2), the first four telescopic rods (3), the second first telescopic rod (4), the second second telescopic rod (5), the second third telescopic rod (6), the third third telescopic rod (7), the third fourth telescopic rod (8), the fourth fourth telescopic rod (9) and a displacement sensor (10) thereof, and performs negative feedback control on the effective lengths of the first telescopic rod (2), the first four telescopic rods (3), the second first telescopic rod (4), the second second telescopic rod (5), the second third telescopic rod (6), the third third telescopic rod (7), the third fourth telescopic rod (8), and the fourth fourth telescopic rod (9); The controller (11) is connected to a flight control system, and controls the effective lengths of the first telescopic rod (2), the first fourth telescopic rod (3), the second first telescopic rod (4), the second second telescopic rod (5), the second third telescopic rod (6), the third third telescopic rod (7), the third fourth telescopic rod (8), and the fourth fourth telescopic rod (9) according to a wing deformation instruction transmitted by the flight control system.

2. The aircraft wing box according to claim 1, characterized in that: Both ends of the first telescopic rod (2), the first-fourth telescopic rod (3), the second-first telescopic rod (4), the second-second telescopic rod (5), the second-third telescopic rod (6), the third-third telescopic rod (7), the third-fourth telescopic rod (8), and the fourth-fourth telescopic rod (9) are connected at corresponding vertex positions via a spherical pair.

3. An aircraft wing, characterized in that: include: The aircraft wing box according to any one of claims 1-2; The skin (12) is coated on the outer side of the aircraft wing box.

4. The aircraft wing according to claim 3, characterized in that The wing rib (1) and its corresponding first-first telescopic rod (2), first-fourth telescopic rod (3), second-first telescopic rod (4), second-second telescopic rod (5), second-third telescopic rod (6), third-third telescopic rod (7), third-fourth telescopic rod (8), and fourth-fourth telescopic rod (9) are provided in multiple groups and are connected in sequence along the wing span direction.

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