阅读说明：本技术 一种隐身浮空器的气动布局结构 (Pneumatic layout structure of stealth aerostat ) 是由 王健 柴建忠 李悦立 陈彦联 赵冬强 陈涛 周卫国 于 2020-12-31 设计创作，主要内容包括：本发明属于航空飞行器设计技术领域,公开了一种隐身浮空器的气动布局结构,包括艇体和吊舱,艇体外表面采用低RCS结构；吊舱设在艇体下表面上,并与艇体下表面用RCS结构过渡,艇体包括刚性骨架、内部气囊和外蒙皮,刚性骨架支撑起RCS结构的轮廓,内部气囊设在刚性骨架内部,外蒙皮罩在刚性骨架外。相比于普通浮空器,该隐身浮空器具有极低雷达散射截面积,能够更好适应各种复杂环境。(The invention belongs to the technical field of aviation aircraft design, and discloses a pneumatic layout structure of a stealth aerostat, which comprises a boat body and a pod, wherein the outer surface of the boat body adopts a low RCS structure; the pod is arranged on the lower surface of the boat body and is in transition with the RCS structure for the lower surface of the boat body, the boat body comprises a rigid framework, an internal air bag and an outer skin, the rigid framework supports the outline of the RCS structure, the internal air bag is arranged inside the rigid framework, and the outer skin covers the rigid framework. Compared with a common aerostat, the stealth aerostat has an extremely low radar scattering sectional area and can be better adapted to various complex environments.)

1. The pneumatic layout structure of the stealth aerostat is characterized by comprising a boat body and a pod, wherein the outer surface of the boat body adopts a low RCS structure; the pod is arranged on the lower surface of the boat body and is transited with the lower surface of the boat body by an RCS structure.

2. The aerodynamic layout structure of a stealth aerostat according to claim 1, characterized in that said hull comprises a rigid skeleton supporting the profile of the RCS structure, an internal bladder inside the rigid skeleton and an external skin covering the rigid skeleton.

3. The aerodynamic layout structure of a stealth aerostat as claimed in claim 2, wherein said rigid skeleton is made of a high-strength low-density material.

4. The aerodynamic layout structure of a stealth aerostat according to claim 3, characterized in that the material of said rigid skeleton is carbon fiber.

5. The aerodynamic layout structure of a stealth aerostat according to claim 3, characterized in that the material of said rigid skeleton is an aluminum alloy.

6. The aerodynamic layout structure of the stealth aerostat as claimed in claim 2, wherein the rigid framework adopts a combination mode of transverse beams and longitudinal beams to divide the aerostat into a plurality of triangular or quadrangular planes, and the aerostat aerodynamic shape is formed by the aerostat and the outer skin; wherein the normal of each triangle and quadrangle forms an angle of not less than 15 degrees with the horizontal plane.

7. The pneumatic layout structure of the stealth aerostat according to claim 2, wherein the internal air bag is composed of a plurality of sub-air bags, the plurality of sub-air bags are placed inside the rigid framework, and fill each space inside the rigid framework.

8. The pneumatic layout structure of the stealth aerostat according to claim 2, wherein the internal air bag is woven from a material made of terylene, polyester fiber and mylar, and is filled with helium.

9. The pneumatic layout structure of the stealth aerostat according to claim 2, wherein the outer skin is woven from a material made of dacron, polyester fiber and mylar, and the surface of the outer skin is coated with a conductive coating.

10. The aerodynamic configuration structure of a stealth aerostat as claimed in claim 1, wherein said cabin is made of a material having a strong reflection effect on radar waves, and the cabin is formed by splicing a plurality of polygons, and the angle between the normal of each polygon and the horizontal plane is not less than 15 °.

Technical Field

The invention belongs to the technical field of aviation aircraft design, relates to a layout structure of aerostats, and particularly relates to a pneumatic layout structure of stealth aerostats.

Background

The aerostat generally refers to an aircraft which is lighter than air in specific gravity and lifts off by virtue of atmospheric buoyancy. Compared with the conventional unmanned aerial vehicle and helicopter with the same load, the air-staying time of the aerostat can reach 15-30 days at most, and the large-scale captive balloon can even be continuously stayed for more than 30 days. The device has the advantages of long standing-in-air time, hovering at a fixed point, convenience in vertical take-off and landing, strong load-carrying capacity, low noise, low energy consumption and the like. As a general platform, the aerostat can be loaded with various sensors such as visible light, infrared light, radar and the like, and can monitor important targets continuously for 24 hours and 360 degrees from the air by virtue of the height. The aerostat can complete various tasks which can only be completed by a satellite and an airplane before, such as early air warning, earth observation, communication relay and the like.

The traditional aerostat mainly comprises a textile material (an air bag) and a metal material (a nacelle and the like), wherein the textile material has certain radar reflection capacity, and the radar scattering sectional area of the whole air bag is considerable due to the large area of the textile material. The metal-based material is a strong radar wave reflector. Conventional aerostats are therefore easily detected and located by radar in the air.

Disclosure of Invention

In order to solve the problems, the invention provides a pneumatic layout structure of a stealth aerostat, which can be used as a high-value aerostat scheme in a high-threat environment.

The technical scheme of the invention is as follows:

a pneumatic layout structure of a stealth aerostat comprises a submarine body and a pod, wherein the outer surface of the submarine body adopts a low RCS structure; the pod is arranged on the lower surface of the boat body and is transited with the lower surface of the boat body by an RCS structure.

Further, the hull includes rigid skeleton, inside gasbag and outer skin, and the profile of RCS structure is supported to rigid skeleton, and inside gasbag is established inside rigid skeleton, and outer skin covers outside rigid skeleton.

Furthermore, the rigid framework is made of high-strength low-density materials.

Further, the material of the rigid skeleton is carbon fiber.

Further, the rigid framework is made of aluminum alloy.

Furthermore, the rigid framework adopts a combination mode of a transverse beam and a longitudinal beam to divide the appearance of the aerostat into a plurality of triangular or quadrangular planes, and the aerostat and the outer skin form the aerodynamic appearance of the aerostat; wherein the normal of each triangle and quadrangle forms an angle of not less than 15 degrees with the horizontal plane.

Further, the internal airbag is composed of a plurality of sub-airbags which are disposed inside the rigid frame and fill each space inside the rigid frame.

Furthermore, the inner air bag is woven by materials made of terylene, polyester fiber and mylar, and helium is filled in the inner air bag.

Furthermore, the outer skin is woven by materials made of terylene, polyester fiber and mylar, and the surface of the outer skin is coated with conductive paint.

Furthermore, the cabin is made of materials with strong reflection effect on radar waves, the appearance of the cabin is formed by splicing a plurality of polygons, and the included angle between the normal line of each polygon and the horizontal plane is not less than 15 degrees.

The invention has the advantages that: compared with a common aerostat, the stealth aerostat has an extremely low radar scattering sectional area and can be better adapted to various complex environments.

Drawings

FIG. 1 is a schematic structural diagram of a stealth aerostat according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a hull of the stealth aerostat according to an embodiment of the present invention;

FIG. 3 is a front view of a stealth aerostat structure according to an embodiment of the present invention;

fig. 4 is a top view of a stealth aerostat structure according to an embodiment of the present invention.

Detailed Description

This section is an example of the present invention and is provided to explain and illustrate the technical solutions of the present invention.

A pneumatic layout structure of a stealth aerostat comprises a submarine body and a pod, wherein the outer surface of the submarine body adopts a low RCS structure; the pod is arranged on the lower surface of the boat body and is transited with the lower surface of the boat body by an RCS structure.

The hull includes rigidity skeleton, inside gasbag and outer skin, and the profile of RCS structure has been supported to the rigidity skeleton, and inside gasbag is established inside the rigidity skeleton, and outer skin covers outside the rigidity skeleton.

The rigid framework is made of high-strength low-density materials, and the materials of the rigid framework can be carbon fibers or aluminum alloy.

The rigid framework adopts a combination mode of a transverse beam and a longitudinal beam to divide the appearance of the aerostat into a plurality of triangular or quadrangular planes, and the aerostat pneumatic appearance is formed by the rigid framework and the outer skin; wherein the normal of each triangle and quadrangle forms an angle of not less than 15 degrees with the horizontal plane.

The internal air bag is composed of a plurality of sub-air bags which are arranged inside the rigid skeleton and fill each space inside the rigid skeleton. The inner air bag is woven by materials made of terylene, polyester fiber and mylar, and helium is filled in the inner air bag.

The outer skin is woven by materials made of terylene, polyester fiber and mylar, and the surface of the outer skin is coated with conductive paint.

The cabin is made of materials with strong reflection effect on radar waves, the appearance of the cabin is formed by splicing a plurality of polygons, and the included angle between the normal line of each polygon and the horizontal plane is not less than 15 degrees.

Another embodiment of the present invention is described below with reference to the drawings.

As shown in figure 1, the aerostat adopts the shape of a section with two tips at the ends, the middle part and the like, and the surface of the aerostat is composed of a plurality of polygons (triangles and quadrangles).

As shown in fig. 2, the rigid frame is made of a light metal material such as an aluminum alloy, a composite material such as a high-strength low-density carbon fiber, or the like, and divides the surface of the aerostat hull into a plurality of polygons. The rigid framework is composed of transverse beams and longitudinal beams, the outline of the aerostat is divided into a plurality of triangular or quadrilateral planes, and the aerostat pneumatic outline is formed by the rigid framework and the outer skin. Wherein each triangle/quadrilateral normal has an angle of not less than 15 ° with the horizontal plane.

The outer skin is made of artificial material such as dacron, polyester fiber and mylar, and the surface of the outer skin is coated with conductive paint such as conductive paint containing silver powder. The outer skin is connected with the rigid skeleton.

The air bag in the air container is arranged in the rigid framework, helium is filled in the air bag to supply lift force, and the air bag consists of a plurality of sub air bags. The air bag is woven by artificial materials such as terylene, polyester fiber, mylar and the like.

The air bag adopts a flat appearance design and is formed by splicing a plurality of large-inclination-angle planes. Each plane normal direction makes a large angle with the ground plane, thereby deflecting the radar echo energy out of the direction of the enemy radar. The surface of the air bag adopts a metallization coating technology, and a layer of radar wave strong reflecting layer is sprayed on the outer surface of the textile fabric, so that radar waves cannot penetrate through the surface of the air bag to enter the air bag, and the energy of the radar waves can be reflected out.

The pod is mainly of metal construction and low RCS design for appearance. The polyhedron design concept is also adopted.