CN114104336B - An inflatable deployable sealed cabin with lunar soil-filled bulkheads - Google Patents

Abstract

An inflatable expansion sealed cabin with lunar soil filling bulkheads belongs to the technical field of spacecraft structures. The lunar soil filling bulkhead is arranged at the outermost side of the sealed cabin, the inner side of the lunar soil filling bulkhead is a cabin structure formed by connecting two ends of a flexible skin with two ends of a semi-rigid floor, the semi-rigid floor is formed by connecting a plurality of longitudinally paved rigid plates through flexible connecting strips, the lunar soil filling bulkhead can be folded at the flexible connecting strips, and the rigidifying arch-shaped supporting structure is arranged in the cabin structure and can be folded and is used for forming and rigidifying the lunar surface in cooperation with inflation and unfolding of the sealed cabin. The sealed cabin disclosed by the invention is flexible, foldable, small in folding volume and light in weight, can be unfolded into a large-size sealed cabin structure on the lunar surface, solves the problem that a rigid metal manned sealed cabin with a large living space is difficult to launch due to the limitation of a launching load and a launching envelope, can be obtained locally, and further reduces the launching load and the launching difficulty of the sealed cabin. And collapse of the overall structure due to local leakage can be avoided.

Description

An inflatable deployable sealed cabin with lunar soil-filled bulkheads

Technical field

The invention belongs to the technical field of spacecraft structures, and specifically relates to an inflatable deployable sealed cabin with a lunar soil-filled bulkhead.

Background technique

The construction of lunar base has become an important goal of lunar exploration. As the main sealed place for astronauts to live and work on the moon, the lunar habitat module is one of the important infrastructures for the construction of the lunar base. The current sealed cabins mainly have two structural forms: rigid metal sealed cabins and inflatable deployable sealed cabins (inflatable cabins), but both have some shortcomings.

Rigid metal sealed cabins are currently commonly used sealed cabin structures, but they still have shortcomings such as heavy mass, large launch volume, high launch costs, difficult on-orbit assembly, and small living space, making it difficult to meet the long-term requirements of multiple people on the lunar base in the future. The need for large-sized sealed cabins.

Compared with the traditional rigid metal sealed capsule, the inflatable deployable sealed capsule is a new type of sealed capsule that is flexible and foldable, has a small launch volume, is light in weight, is easy to launch, has low launch cost, can be inflated and deployed in orbit, and has a large deployment volume. and other features, making it easy to build a large-sized space sealed cabin. However, for fully flexible sealed cabins, local air leakage can easily cause the collapse of the entire structure, and even threaten the safety of internal staff, instruments and equipment. In addition, the radiation intensity of the lunar surface is high, and a bulkhead with sufficient thickness and quality is required to achieve radiation protection for personnel and instruments in the cabin. However, space radiation protection can only be achieved by simply transporting materials or cabins from the earth to the lunar surface. Protection is not only expensive, but even difficult to achieve.

Contents of the invention

In view of the demand for large-sized residential sealed cabins in lunar bases, the present invention proposes an inflatable deployable sealed cabin with lunar soil-filled bulkheads.

The technical solution adopted by the present invention is: an inflatable deployable sealed cabin with a lunar soil-filled bulkhead, including a lunar soil-filled bulkhead, a flexible skin, a rigidizable inflatable deployable arch support structure and a semi-rigid floor; The lunar soil-filled bulkhead is arranged on the outermost side of the sealed cabin, and its inner side is a cabin structure formed by connecting the two ends of the flexible skin and the two ends of the semi-rigid floor. The semi-rigid floor is composed of a plurality of longitudinally laid rigid plates. are connected by flexible connecting strips and can be folded at the flexible connecting strips. The rigidizable inflatable deployable arch support structure is provided in the cabin structure and can be folded and inflated and deployed on the lunar surface in conjunction with the sealed cabin. And harden.

Compared with the prior art, the present invention has the following beneficial effects:

1. The sealed cabin of the present invention is flexible and foldable, has a small folding volume and is light in weight. It can be deployed on the lunar surface into a large-sized residential cabin structure, which solves the problem of difficulty in launching rigid metal with a large living space due to the limitations of launch load and launch envelope. The problem of manned sealed cabins.

2. The sealed cabin of the present invention uses lunar soil to fill the cabin wall, which has good heat insulation and space radiation protection effects. The lunar soil is sourced from local materials, which significantly reduces the launch cost and launch difficulty of the sealed capsule.

3. The lunar soil-filled bulkhead of the sealed cabin of the present invention is filled with lunar soil to form an arched structure, which has high structural rigidity, can significantly reduce the pressure of the filled lunar soil on the inflatable deployment cabin, and significantly improves the performance of the sealed cabin. Structural reliability and stability.

4. The interior of the sealed cabin of the present invention adopts a rigidizable inflatable expandable arch support structure. After stiffening, the structure has high stiffness and good stability, which plays a supporting role in the sealed cabin, further improves the stiffness of the sealed cabin, and can Avoid the collapse of the overall structure due to local air leakage.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic structural diagram of the lunar soil filling bulkhead of the present invention;

Figure 3 is a schematic structural diagram of the lunar soil filling module of the present invention;

Figure 4 is a schematic structural diagram of the rigidizable inflatable expandable arch support structure of the present invention;

Figure 5 is an unfolded schematic diagram of the sealed cabin of the present invention;

Figure 6 is a schematic diagram of the folding of the sealed cabin of the present invention;

Figure 7 is a diagram of the folding mode of the sealed cabin of the present invention;

Figure 8 is a schematic diagram of the rigid base plate of the present invention;

Figure 9 is a schematic diagram of the lunar soil-filled bulkhead and flexible skin of the present invention;

Among them: 1. Lunar soil-filled bulkhead; 2. Flexible skin; 3. Flexible hatch; 4. Flexible sealing zipper; 5. Rigidizable inflatable expandable arch support structure; 6. Semi-rigid floor; 7. Connection Section one; 8. Connection section two; 9. Free section; 11. Lunar soil filling module; 12. Flexible connection cloth; 21. Airtight layer two; 22. Bearing layer two; 61. Rigid plate; 62. Flexible connection Strip; 111. Rigidizable flexible lunar soil bag; 112. Bottom rigid plate; 113. Airtight layer one; 114. Electric heating layer one; 115. Rigidizing layer one.

Detailed ways

Specific Embodiment 1: This embodiment will be described with reference to Figures 1 to 9. This embodiment provides an inflatable deployable sealed cabin with a lunar soil-filled bulkhead, including a lunar soil-filled bulkhead 1, a flexible skin 2, and a Rigidized inflatable expandable arch support structure 5 and semi-rigid floor 6; the lunar soil-filled bulkhead 1 is arranged on the outermost side of the sealed cabin, and its inner side is connected by two ends of the flexible skin 2 and two ends of the semi-rigid floor 6 The cabin structure formed, the semi-rigid floor 6 is composed of multiple longitudinally laid rigid plates 61 connected by flexible connecting strips 62, which can be folded at the flexible connecting strips 62 and unfolded and formed along with the sealed cabin. The bottom surface of the cabin is flat, which is convenient for astronauts' life, work and equipment placement, and has a strong anti-puncture effect. The rigidizable inflatable expandable arch support structure 5 is set in the cabin structure and can be folded and used on the moon. The surface cooperates with the sealed cabin to inflate, expand, form and stiffen;

A flexible hatch 3 is provided outside the sealed cabin, which is opened and closed by a flexible sealed zipper 4.

In this embodiment, the sealed capsule is initially in a folded state. After being folded and packaged, it is launched to the moon and can be inflated and deployed on the lunar surface to form a large sealed capsule structure.

Specific Embodiment 2: This embodiment will be described with reference to Figures 1 to 2. This embodiment further limits Specific Embodiment 1. In this embodiment, the lunar soil filling bulkhead 1 includes a plurality of lunar soil filling modules 11. The arched structure is connected in sequence and the flexible connecting cloth 12 is connected to the outside of the arched structure. The flexible connecting cloth 12 connects the lunar soil filling modules 11 into a whole, which plays a role in fixing the overall shape of the bulkhead, and further To improve the overall structural stability of the sealed cabin, the lunar soil-filled bulkhead 1 is arranged on the outside of the flexible skin 2 and is connected to the flexible skin 2 as a whole. Other components and connection methods are the same as in the first embodiment.

In this embodiment, the flexible connecting cloth 12 is composed of high-strength fiber cloth and radiation-proof coating, and has high load-bearing performance and radiation-proof performance.

Specific Embodiment 3: This embodiment will be described with reference to Figures 5 to 7. This embodiment further limits Specific Embodiment 2. In this embodiment, the lunar soil-filled bulkhead 1 is connected to the flexible skin 2 in sections. , starting from one end of the flexible skin 2 to the area with the same transverse length as the semi-rigid floor 6 is the connecting section 7. The remaining part of the flexible skin 2 is divided into two equal parts, namely the connecting section 2 8 and the free section 9. The connecting section 2 8 is the area connected to the connecting section 7. When folded, the semi-rigid floor 6 overlaps the connecting section 1 upward, and the free section 9 of the flexible skin 2 overlaps the connecting section 2 8. Other compositions and connection methods are the same as the second embodiment.

In this embodiment, when the cabin is folded, the semi-rigid floor 6 and the arched structure, as well as part of the flexible skin 2 that is not connected to the bulkhead, are first overlapped on the arched bulkhead (lunar soil-filled bulkhead 1). Then roll and fold together.

Specific Embodiment 4: This embodiment will be described with reference to Figure 3. This embodiment is a further limitation of Specific Embodiment 3. In this embodiment, the lunar soil filling module 11 includes a rigidizable flexible lunar soil bag 111 and a flexible lunar soil bag 111. The outer bottom surface of the rigidized flexible lunar soil bag 111 is attached to the connected underlying rigid plate 112; the rigidizable flexible lunar soil bag 111 is filled with lunar soil, and the flexible skin 2 is connected to the corresponding underlying rigid plate 112. The methods are all bonding, heat sealing or suture connection.

In this embodiment, when the lunar surface of the lunar soil-filled bulkhead 1 is unfolded and formed, it is first unfolded together with the sealed cabin, and then a small amount of gas is filled into the rigidizable flexible lunar soil bag 111 to form it, and then the rigidizable flexible lunar surface is molded. The soil bag 111 is electrically heated to stiffen and fix its shape. Finally, the rigidizable flexible lunar soil bag 111 is filled with lunar soil to form a bulkhead structure.

Specific Embodiment 5: This embodiment will be described with reference to Figure 9. This embodiment further limits Specific Embodiment 4. In this embodiment, the rigidizable flexible lunar soil bag 111 is a long wedge-shaped bag structure. The cross-section is trapezoidal, and the rigidizable flexible lunar soil bag 111 is made of rigidizable multi-layer flexible composite materials. From the inside to the outside, there are an airtight layer 113, an electric heating layer 114 and a rigid layer 115; among them, The airtight layer 113 is made of a film material with excellent gas barrier properties and high strength and wear resistance; the electric heating layer 114 is made of electric heating wire and is used to heat the rigid layer 115 to make it rigid; rigidization Layer 115 is made of fiber-reinforced thermosetting resin material, which has high strength and stiffness after stiffening. Other compositions and connection methods are the same as those in the fourth embodiment.

Specific Embodiment 6: This embodiment will be described with reference to Figure 9. This embodiment further limits Specific Embodiment 5. In this embodiment, the flexible skin 2 is composed of an airtight layer 21 and a load-bearing layer 22. It is a flexible multi-layer composite structure; the second airtight layer 21 is arranged inside the second load-bearing layer 22 and is made of gas barrier film. It has good gas barrier performance and certain load-bearing performance, and can ensure the inflatable deployment of the sealed cabin. The airtight layer 22 is formed and maintains the normal air pressure for astronauts' life and work for a long time; the load-bearing layer 22 is woven with high-strength and high-modulus fiber materials, which can withstand the internal high pressure and prevent the airtight layer 21 from over-expanding and causing damage to the sealed cabin. Other components and connection methods are the same as the fifth embodiment.

Specific Embodiment 7: This embodiment is described with reference to Figure 4. This embodiment is a further limitation of Specific Embodiment 1. In this embodiment, the rigidizable and inflatable expandable arch support structure 5 is composed of several rigidizable and inflatable arched support structures. An arched structure formed by connected expandable support tubes. The wall of the rigidizable inflatable expandable support tube is made of multi-layer flexible composite materials that can be rigidified. From the inside to the outside, there are three airtight layers and an electric heating layer. 3. Stiffening layer three. Other components and connection methods are the same as in the first embodiment.

Specific Embodiment 8: This embodiment is a further limitation of Specific Embodiment 7. In this embodiment, the airtight layer three is made of a film material with good gas barrier properties and is used for a rigidizable inflatable expandable support tube. The initial expansion molding; the electric heating layer 3 is made of electric heating wire, used to heat the rigid layer 3 of the rigidizable inflatable expandable support tube to make it rigid; the rigid layer 3 is made of fiber reinforced Made of thermosetting resin material, it can be heated and stiffened by the electric heating layer three after inflating and unfolding, and has high stiffness. Other components and connection methods are the same as the seventh embodiment.

In this embodiment, the rigidizable inflatable expandable arch support structure 5 is equipped with in-cabin wires, cables, and gas-liquid pipelines, which effectively saves space and protects the pipeline system.

Specific Embodiment 9: This embodiment is a further limitation of Specific Embodiment 1. In this embodiment, the bottom of the rigidizable inflatable expandable arch support structure 5 is provided with a plurality of rigidizable inflatable expandable support tubes and The upper surface of the semi-rigid floor 6 is connected, and after a plurality of rigidizable inflatable deployable support tubes are inflated, deployed and stiffened, the semi-rigid floor 6 can be constrained and fixed to make it a rigid floor structure.

The sealed cabin has a built-in gas bottle, which is used to inflate and expand the sealed cabin and maintain the internal air pressure; the sealed cabin has built-in air mattresses, storage tables and corresponding circuits, piping systems and other ancillary systems. Other components and connection methods are the same as in the first embodiment.

It is understood that the present invention has been described through some embodiments. Those skilled in the art know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, the features and embodiments may be modified to adapt a particular situation and material to the teachings of the invention without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the present application are within the scope of protection of the present invention.

Claims (8)

1. An inflatable expanding sealed cabin with lunar soil filling bulkheads, which is characterized in that: comprises a lunar soil filling bulkhead (1), a flexible skin (2), a rigidifying inflatable expansion arch support structure (5) and a semi-rigid floor (6); the lunar soil filling bulkhead (1) is arranged at the outermost side of the sealed cabin, the inner side of the lunar soil filling bulkhead is a cabin structure formed by connecting two ends of a flexible skin (2) with two ends of a semi-rigid floor (6), the semi-rigid floor (6) is formed by connecting a plurality of longitudinally paved rigid plates (61) through flexible connecting strips (62), the flexible connecting strips (62) can be folded, the rigidifying inflatable expansion arch-shaped supporting structure (5) is arranged in the cabin structure, can be folded, and can be formed and rigidified by cooperating with the inflation expansion of the sealed cabin on the lunar surface,

the lunar soil filling bulkhead (1) comprises an arch structure formed by sequentially connecting a plurality of lunar soil filling modules (11) and flexible connecting cloth (12) connected to the outer side of the arch structure, and the lunar soil filling bulkhead (1) and the flexible skin (2) are connected into a whole.

2. An inflatable expanding seal capsule with lunar soil filled bulkhead according to claim 1, wherein: the lunar soil filling bulkhead (1) is connected with the flexible skin (2) in a segmented mode, a first connecting section (7) is arranged from one end of the flexible skin (2) to a region which is the same as the transverse length of the semi-rigid floor (6), the rest part of the flexible skin (2) is divided into two parts, namely a second connecting section (8) and a free section (9), the second connecting section (8) is a region connected with the first connecting section (7), when the semi-rigid floor (6) is folded, the first connecting section (7) is overlapped upwards, and the free section (9) of the flexible skin (2) is overlapped with the second connecting section (8).

3. An inflatable expanding capsule with lunar soil filled bulkhead according to claim 1 or 2, characterized in that: the lunar soil filling module (11) comprises a rigidifying flexible lunar soil bag (111) and a bottom rigid plate (112) which is in fit connection with the outer bottom surface of the rigidifying flexible lunar soil bag (111); lunar soil is filled in the rigidifying flexible lunar soil bag (111), and the flexible skin (2) is connected with the corresponding bottom rigid plate (112) in a bonding, heat sealing or sewing mode.

4. A gas-filled expandable sealed cabin having lunar soil filled bulkheads as claimed in claim 3 wherein: the rigidifying flexible lunar soil bag (111) is of a strip-shaped wedge-shaped bag structure, the cross section of the rigidifying flexible lunar soil bag is trapezoid, the rigidifying flexible lunar soil bag (111) is made of a rigidifying multi-layer flexible composite material, and an airtight layer I (113), an electric heating layer I (114) and a rigidifying layer I (115) are arranged in sequence from inside to outside; wherein, the first air-tight layer (113) is made of a high-strength and wear-resistant film material with excellent gas barrier property; the first electric heating layer (114) is made of an electric heating wire and is used for heating the first rigidizing layer (115) to rigidize the first rigidizing layer; the rigidized layer one (115) is made of a fiber reinforced thermosetting resin material.

5. A gas-filled expandable sealed cabin having lunar soil filled bulkheads as claimed in claim 3 wherein: the flexible skin (2) is a flexible multilayer composite structure consisting of an airtight layer II (21) and a bearing layer II (22); the second airtight layer (21) is arranged on the inner side of the second bearing layer (22) and is made of a gas barrier film; the bearing layer II (22) is woven by adopting high-strength and high-modulus fiber materials.

6. An inflatable expanding seal capsule with lunar soil filled bulkhead according to claim 1, wherein: the rigidifying inflatable expansion arch supporting structure (5) is an arch structure formed by connecting and building a plurality of rigidifying inflatable expansion supporting pipes, the pipe wall of the rigidifying inflatable expansion supporting pipes is made of rigidifying multilayer flexible composite materials, and the rigidifying inflatable expansion supporting pipes are an air-tight layer III, an electric heating layer III and a rigidifying layer III from inside to outside in sequence.

7. An inflatable expanding seal capsule having lunar soil filled bulkheads as claimed in claim 6 wherein: the air-tight layer III is made of a film material with good gas barrier property and is used for initial expansion molding of the inflatable expansion supporting tube; the electric heating layer III is made of an electric heating wire and is used for heating the rigidifying layer III of the rigidifying inflatable expansion supporting tube so as to rigidify the rigidifying layer III; the rigidized layer III is made of fiber reinforced thermosetting resin material, and can be rigidized by heating the electric heating layer III after inflation, unfolding and molding.

8. An inflatable expanding seal capsule with lunar soil filled bulkhead according to claim 1, wherein: the bottom of the rigidifying inflatable expansion arch support structure (5) is provided with a plurality of rigidifying inflatable expansion support pipes which are connected with the upper surface of the semi-rigid floor (6), and the rigidifying inflatable expansion support pipes are used for restraining and fixing the semi-rigid floor (6) after being inflated and expanded, so that the rigidified floor structure is formed.