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A deck suitable for the airtight cabin of a spacecraft

A technology for sealing cabins and spacecraft, applied in the field of spacecraft, can solve the problems of reduced structural lightweight, spacecraft mass, space waste, single function, etc., and achieves the effect of low density, good sealing, and reduced mass

Active Publication Date: 2020-06-05
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of deck structure has good processability and can meet the requirements of long life, but its function is relatively single. When it is applied to the airtight cabin of a manned spacecraft, it is necessary to set up auxiliary structures such as heat insulation layer and debris protection layer inside and outside. In addition, it is necessary to lay cables and pipelines on it, so that this type of structure has the following limitations: (1) The main structure, auxiliary structure and equipment have a single function, and the auxiliary structure is the main structure. Serious waste; (2) increases the complexity of the overall assembly integration
[0003] NASA of the United States has developed an all-composite airtight cabin structure. Due to the large number of operating openings on the airtight cabin, the composite material structure is weak at the edge of the opening, and a lot of strengthening work is required, resulting in a greatly reduced structural lightweight level, and the sealing performance is not as good as that of all metal. structure, restricting its engineering application

Method used

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  • A deck suitable for the airtight cabin of a spacecraft
  • A deck suitable for the airtight cabin of a spacecraft
  • A deck suitable for the airtight cabin of a spacecraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a kind of cabin plate suitable for the airtight cabin of spacecraft, see the attached figure 1 , including: base skin 2, hat-shaped rib 3, outer skin 4, heat insulation pad 5, connecting sticky block 6, compression screw 7, lap joint 10, cable 81, pipeline 91, cable clamping block 82 , pipeline block 92 and heat insulation foam 14;

[0039] The base skin 2 is an aluminum alloy, which is used to realize the sealing function of the airtight cabin of the spacecraft;

[0040] The hat-shaped reinforcing rib 3 is a bar-shaped rib with a U-shaped cross section, which is made of high-modulus carbon fiber, and is used to realize the high rigidity output of the spacecraft airtight cabin;

[0041] Both the cable block 82 and the pipeline block 92 are made of carbon fiber material;

[0042] The overall connection relationship is as follows: the opening end of the hat-shaped rib 3 is fixed on the base skin 2 by room temperature curing glue, and the allowab...

Embodiment 2

[0048] This embodiment provides a cabin plate suitable for the airtight cabin of a spacecraft, which is expanded on the basis of Embodiment 1, see the attached Figure 4 , the expanded deck includes: base skin 2, hat-shaped stiffener 3, outer skin 4, expansion rib 32, expansion skin 42, rib connection frame 13, heat insulation foam 14, cable 81 and pipeline 91;

[0049] The expansion rib 32 is a bar-shaped rib with a cross-section, which is made of high-modulus carbon fiber;

[0050] The overall connection relationship is as follows: the structure and connection method of the base skin 2 and the hat-shaped reinforcing rib 3 are the same as in Embodiment 1, and the bottom surface of the expansion rib 32 is installed on the hat-shaped reinforcing rib 3 through two or more rib connecting frames 13 one by one. The closed end of the rib 3, the length direction of the expansion rib 32 is consistent with the length direction of the hat-shaped stiffener 3; the outer skin 4 is installed ...

Embodiment 3

[0054] The process that the cabin plate in embodiment 1 or embodiment 2 forms the spacecraft airtight cabin is as follows:

[0055] The first type: Weld and butt the base skins 2 of two or more decks to form an airtight cabin of a spacecraft, see attached Figure 6 , add an inter-module skin 41 between the outer skin 4 / and the extended skin 42 of the two decks on both sides of the weld to make it a closed structure, and between the inter-module skin 41 and the base skin 2 The cavity between the ribs 12 is filled with insulating foam 14;

[0056] The second is to assemble the base skin 2 into the shape of the airtight cabin of the spacecraft, and then install hat-shaped ribs 3, heat-insulating foam 14, outer skin 4 / and expansion ribs 32, and expansion skin 42 layer by layer to form an aerospace vehicle. airtight compartment;

[0057] The configuration of the airtight capsule of the spacecraft may be in the shape of a cylinder, a cone, a sphere or a plane.

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Abstract

The invention discloses a cabin plate suitable for a sealed cabin of a spacecraft, and belongs to the technical field of the spacecraft. The cabin plate comprises a base skin, a hat-shaped reinforcingrib, an outer skin, a cable, a pipeline and a heat insulation foam. The open end of the hat-shaped reinforcing rib is mounted on the base skin, the hat-shaped reinforcing rib is staggered and distributed in a grid shape, and the rib cavities of the hat-shaped reinforcing rib are communicated with each other; The outer skin is mounted on the closed end of the hat-shaped reinforcing rib. The cableis installed in the cavity of the rib of the hat-shaped reinforcing rib through the cable clip, and the pipeline is installed in the cavity of the rib of the hat-shaped reinforcing rib through the pipe clip. Pipelines and cables form a through cable network and a pipe network in the interior of the bulkhead; The remaining space in the cavity of the hat-shaped reinforcing rib, the base skin, the outer skin and the space formed by the hat-shaped reinforcing rib are filled with heat insulation foam. The invention utilizes the advantages of good sealing performance of the metal structure, lightweight composite structure and strong designability, so that the cabin plate has the functions of sealing, heat insulation and debris protection.

Description

technical field [0001] The invention belongs to the technical field of spacecraft, and in particular relates to a cabin plate suitable for a sealed cabin of a spacecraft. Background technique [0002] At present, the main structure of the airtight cabin of manned spacecraft at home and abroad is mainly welded metal structure. The deck structure of the airtight cabin includes two parts: the deck skin and the grid rib, which are integrated by milling and rolling of thick aluminum plates. Forming mainly realizes two functions of sealing and carrying. This type of deck structure has good processability and can meet the requirements of long life, but its function is relatively single. When it is applied to the airtight cabin of a manned spacecraft, it is necessary to set up auxiliary structures such as heat insulation layer and debris protection layer inside and outside. In addition, it is necessary to lay cables and pipelines on it, so that this type of structure has the follow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/22B64G1/58
CPCB64G1/22B64G1/58
Inventor 赵云鹏曾福明黄磊郭军辉张涛涛
Owner BEIJING INST OF SPACECRAFT SYST ENG
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