Folding and unfolding method of an inflatable reentry deceleration flexible unfolding structure

A technology of inflatable structure and folding method, which is applied in the direction of inflatable space structure, space navigation vehicle returning to the earth's atmosphere, space navigation vehicle, etc. It can solve the problem that the unfolding process can only be carried out in one direction, increase the operation link, and the folding compression ratio is large and other problems, to achieve the effect of reducing damage to inorganic fabrics, reducing operating links, and compressing packaging volume

Active Publication Date: 2021-07-13
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The disadvantages of the traditional folding and unfolding method are: it is separated from the assembly link, which increases the operation link; the folding compression ratio is too large, and disorderly entanglement interference is prone to occur during the folding process; it is necessary to use a press to assist in the pressure packaging, which is easy to cause damage to the structure; Process can only go in one direction; inflation by ambient gas is not stable enough

Method used

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  • Folding and unfolding method of an inflatable reentry deceleration flexible unfolding structure
  • Folding and unfolding method of an inflatable reentry deceleration flexible unfolding structure
  • Folding and unfolding method of an inflatable reentry deceleration flexible unfolding structure

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Embodiment Construction

[0050] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0051] like figure 1 , 2 , The inflatable re-entry deceleration flexible deployment structure of the present invention includes a nose cone, an air intake valve, an inflatable ring, a connecting belt, a heat-resistant skin, a wrapping cloth, and a cutter.

[0052] In the folded state, the inner side of the inflatable ring is connected to the nose cone, and the inflatable ring, connecting belt and heat-resistant skin are first compressed axially to flatten all the inflatable rings and heat-resistant skin; then press the diagonal line radially Carry out quartering, fold the four corners to the inside in turn, and then rotate the folded part around the center of the cone; finally, wrap the folded flexible structure with wrapping cloth to maintain the compressed state of the flexible structure.

[0053] In the unfolded state, firs...

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Abstract

A folding and unfolding method of an inflatable reentry deceleration flexible unfolding structure belongs to the technical field of spacecraft reentry, return and landing. The invention relates to providing an efficient and reasonable folding and unfolding method for an inflatable reentry deceleration flexible unfolding structure. Mainly through compression and folding, the flexible unfolding structure is folded inside the vehicle during launch and before re-entry deceleration; the connection and fixation with the vehicle is simple, and the packet unlocking is reliable; it can be unfolded in an orderly manner during re-entry deceleration to ensure the normal operation of the flexible deployment structure. The invention adopts the folding packaging method, which can effectively reduce the volume of the inflatable reentry deceleration flexible deployment structure in the spacecraft, simplify the connection and unlocking form, and at the same time ensure the orderly deployment of the flexible deployment structure, which has high application value.

Description

technical field [0001] The invention relates to a folding and unfolding method of an inflatable reentry deceleration flexible unfolding structure, which belongs to the technical field of spacecraft reentry, return and landing. Background technique [0002] In order to improve the means and capabilities of space vehicle reentry and return, and extend the application field of human spaceflight activities. Advanced space reentry deceleration structures suitable for new situations and new technology requirements must be developed. The inflatable reentry deceleration flexible deployment structure is one of the important light-weight space structures with great application prospects. [0003] The inflatable reentry deceleration flexible deployment structure is wrapped by a folded high-temperature-resistant flexible braid around the payload compartment, which is folded and shrunk into a small volume during launch. After launching into orbit, it relies on its own internal gas The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/22B64G1/62
CPCB64G1/222B64G1/62B64G1/2227
Inventor 廖航曹旭王立武陈旭竺梅芳李博黄明星许望晶林汝领李少腾
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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