Space unfolding structure

A space-expanding, cylinder-based technology, applied to the power supply system of aerospace vehicles, etc., can solve the problems of high structural reliability, prone to mechanical failure, and low storage rate, etc., to achieve improved reliability and simple structure , The effect of increasing the acceptance rate

Active Publication Date: 2014-03-26
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this method, its storage rate is not very high, and due to the limitation of the volume and weight of the space transportation system, this method has certain limitations
For large-volume antennas, the traditional deployment method is complicated to operate, requires high reliability of the structure, and is prone to mechanical failures

Method used

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] Such as Figure 1~6 As shown, the present invention includes a cylinder 1, an end cap 2, a heater, a memory alloy 4, a film 7 and an inflation nozzle 9, wherein the heater is installed in the cylinder 1 and includes a heating rod 3, a first heat insulating sleeve 5 and The second heat insulating sleeve 6 .

[0024] Cylinder 1 is an internal hollow structure, and an end cap 2 is installed on its open end; a plurality of rectangular through holes (four through holes in this embodiment) are evenly distributed on the outer peripheral surface of cylinder 1 for memory alloy 4 through; the bottom surface of the cylinder 1 and the center of the end cover 2 are provided with round holes.

[0025] A plurality of memory alloys 4 are evenly distributed along the circumferential direction on the periphery of the cylinder 1 , and four memory alloys 4 are evenly di...

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PUM

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Abstract

The invention relates to a foldable structure, in particular to a space unfolding structure which can be unfolded without needing a driving device. The space unfolding structure comprises a cylinder, a heater, memory alloys and films. The heater is installed in the cylinder, a plurality of memory alloys are evenly distributed on the periphery of the cylinder in the circumferential direction, one end of every memory alloy penetrates through the cylinder and is connected with the heater, the other end of every memory alloy is a free end, the memory alloys are sleeved with the films in a stacked mode through the free ends of the memory alloys, the films are in sealed connection with the cylinder, the free ends of the memory alloys sleeved with the films are sequentially bent in the clockwise direction and coiled around the cylindrical surface of the cylinder, and an inflation nozzle capable of inflating the cylinder is installed on the cylinder. The space unfolding structure does not need to be driven by a motor, is simple in structure and easy to install and does not occupy too much space, and reliability of the space unfolding structure is greatly improved.

Description

technical field [0001] The invention relates to a deployable structure, in particular to a space deployable structure that can be deployed without a driving device. Background technique [0002] With the continuous development and wide application of spacecraft technology, the structure and function of spacecraft are constantly changing and becoming more and more complex, and various structures and mechanisms are required to complete corresponding tasks. an essential component of. A deployable structure is a structure and mechanism that realizes the main structure, secondary structure or a certain part of a spacecraft structure from an initial collapsed configuration to a final deployed configuration and maintains this configuration. The deployable structure is widely used in aerospace Various space vehicles and planetary probes in the field, such as satellite vehicle antennas, large optical mirrors, spacecraft solar arrays, large support structures for space stations, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/44
Inventor 刘金国孙澍锋
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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