Inflatable unfolding semi-rigid sealed cabin adopting compressible multi-layer sandwich protective layer

An inflatable deployment and protective layer technology, applied in the field of spacecraft structure, can solve the problems of difficult folding of the inflatable cabin, difficulty in deployment control, and large deployment friction, so as to achieve smooth deployment process, simple deployment drive and control method, and deployment friction small force effect

Pending Publication Date: 2022-02-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the space environment protection ability of the inflatable airtight cabin, especially the space debris protection ability, the bulkhead of the inflatable cabin often adopts a multi-layer thick-walled structure, which will cause

Method used

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  • Inflatable unfolding semi-rigid sealed cabin adopting compressible multi-layer sandwich protective layer
  • Inflatable unfolding semi-rigid sealed cabin adopting compressible multi-layer sandwich protective layer
  • Inflatable unfolding semi-rigid sealed cabin adopting compressible multi-layer sandwich protective layer

Examples

Experimental program
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Example Embodiment

[0031] Specific implementation mode one: refer to Figure 1 to Figure 11 Describe this embodiment. This embodiment provides an inflatable and deployed semi-rigid airtight capsule using a compressible multi-layer sandwich protective layer, including a sealed pressure-bearing inner bag 2, a space environment protection layer 3, and an auxiliary deployment multi-stage sleeve 4 and two rigid heads 1; the two rigid heads 1 are arc-shaped metal structures located at both ends of the inflated and expanded semi-rigid airtight cabin (inflatable cabin), between the edges of the two rigid heads 1 The space is connected with the sealed pressure-bearing inner bag 2 and the space environment protection layer 3, so that the middle section of the inflatable cabin is cylindrical, and the upper and lower ends are hemispherical. 4, the sealed pressure-bearing inner bag 2 is set inside the space environment protection layer 3.

Example Embodiment

[0032] Specific implementation mode two: refer to Figure 2 to Figure 9 Describe this embodiment, this embodiment is to further limit the specific embodiment one, in this embodiment, the space environment protection layer 3 is composed of a plurality of rigid compressible multi-layer sandwich modules 5, a plurality of flexible connecting strips-6 Composed of a plurality of flexible connecting strips 27, the inflatable cabin is easy to fold and expand when inflated. The plurality of rigid and compressible multi-layer sandwich modules 5 are evenly arranged along the outer surface of the sealed pressure-bearing inner bag 2, and in the circumferential direction Folding is carried out in an overlapping manner, connected by flexible connecting strips 2 7 , and folded axially in an interspersed manner, connected by flexible connecting strips 1 6 . Lock the folded inflatable bulkhead package tightly. Other compositions and connection methods are the same as those in Embodiment 1.

Example Embodiment

[0033] Specific implementation mode three: refer to Figure 4 to Figure 6 Describe this embodiment, this embodiment is to further limit the second specific embodiment, in this embodiment, the rigid compressible multi-layer sandwich module 5 located in the cylindrical section of the space environment protection layer 3 is a trapezoidal structure, located in the space environment protection layer 3. The circumferential length of the rigid compressible multi-layer sandwich module 5 of the circular arc segment gradually decreases from the tail end to the head end. Other compositions and connection methods are the same as those in the second embodiment.

[0034] In this embodiment, if Figure 7 , Figure 8 As shown, two rigid compressible multi-layer sandwich modules 5 adjacent in the circumferential direction are set up front and back in turn, as shown in Figure 8 , the upper bottom of a trapezoidal structure on the left is set outward, and the lower bottom of the adjacent tra...

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Abstract

The invention discloses an inflatable unfolding semi-rigid sealed cabin adopting a compressible multi-layer sandwich protective layer, and belongs to the technical field of spacecraft structures. The sealed cabin comprises a sealed pressure-bearing inner bag, a space environment protection layer, an auxiliary unfolding multi-stage sleeve and two rigid sealing heads, the sealing head edges of the two rigid sealing heads are connected with the sealed pressure-bearing inner bag and the space environment protection layer, the centers of the two rigid sealing heads are connected with the auxiliary unfolding multi-stage sleeve, and the sealed pressure-bearing inner bag is arranged in the space environment protection layer. The sealed cabin is composed of rigid multi-layer sandwich modules, the modules are connected through flexible strips and are folded in an overlapping mode, and the problems that the inflatable cabin is difficult to fold due to the fact that the cabin wall is too thick, the unfolding friction force after folding is large, the unfolding control difficulty is large, and material folding damage is likely to be caused are solved. The rigid multi-layer sandwich module can be further compressed after being folded, the compression rate is high, the folding size of the sealed cabin can be further reduced, and the problem that a thick-wall inflatable cabin is large in size after being folded is solved.

Description

technical field [0001] The invention belongs to the technical field of spacecraft structures, and in particular relates to an inflatable and unfolded semi-rigid airtight capsule adopting a compressible multi-layer sandwich protective layer. Background technique [0002] The aerospace engineering construction of space stations, lunar bases, etc. has an urgent demand for large-sized airtight cabins such as manned cabins and storage cabins. The current airtight cabins mainly have two structural forms: rigid metal airtight cabins and inflatable expandable airtight cabins (inflatable cabins). But there are some shortcomings. [0003] Rigid metal manned airtight capsule is currently the most commonly used airtight cabin structure in space stations, but there are still some defects such as heavy mass, large launch volume, high launch cost, difficult assembly in orbit, and small living space, which cannot meet the needs of future manned spaceflight projects. The need for large size...

Claims

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Application Information

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IPC IPC(8): B64G1/22
CPCB64G1/222B64G1/2227
Inventor 苗常青徐铧东石景富崔嘉鑫史志鑫朱延楠
Owner HARBIN INST OF TECH
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