A space-borne flexible ultra-light folding carbon fiber extension rod

A carbon fiber, ultra-light technology, used in space navigation equipment, space navigation equipment, space navigation aircraft and other directions, can solve the problems of difficult accurate positioning, low bending and torsional stiffness, large occupied mass, etc., to achieve high folding The effect of unfolding reusability and high repeatability of unfolding

CN107323687BActive Publication Date: 2019-12-17NAT SPACE SCI CENT CAS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-12-17

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Abstract

The invention discloses a satellite-borne flexible ultra-light folding carbon fiber extending rod. The carbon fiber extending rod comprises a flexible extending rod body (1). The flexible extending rod body (1) is provided with a plurality of long circular through holes (3) which are used as flexible bent joints (15) in the axial direction of the rod. The satellite-borne flexible ultra-light folding carbon fiber extending rod adopts the integrated carbon fiber material configuration design, the carbon fiber extending rod has the characteristic of ultra-low mass, and is suitable for being used for mounting of satellites, such as the large satellites and small satellites, of different scales, and the weight per unit length of the carbon fiber extending rod is smaller than 200 g; due to the fact that the carbon fiber extending rod adopts the design of the flexible bent joints capable of automatically storing and releasing elastic potential energy, the carbon fiber extending rod has the function that the rod can automatically extend without external-demand energy and automatically extends to be fixed in shape, so that consumption of resources on a satellite is saved.
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Description

technical field

[0001] The invention relates to the technical field of expandable mechanisms in space, in particular to a space-borne flexible ultra-light folding carbon fiber extension rod. Background technique

[0002] With the continuous development of science and technology, human beings have greatly expanded the field of space science research, and space science tasks have become more and more complex. There are more and more space activities such as remote sensing of the earth and space exploration, and the detection of space vehicles that meet the needs of different tasks The load puts forward higher requirements, for example: low-frequency large-size antennas, payload detection instruments protruding from the satellite body for a certain distance, and high-precision and high-resolution loads that require interferometric measurements all require corresponding extension rod mechanisms to achieve retraction during launch , function unfolded while in orbit.

[0003] In ...

Examples

Embodiment 1

[0058] A space-borne flexible and ultra-light folding carbon fiber extension pole, which can realize non-destructive 180-degree folding, that is, a 1-fold carbon fiber extension pole. Its technical indicators and functional requirements are:

[0059] (1) It is required to be able to fold 180 degrees without damage;

[0060] (2) Two detection loads are installed on the flexible extension rod, one detection load is installed at the end of the flexible extension rod, and the other detection load is 300mm away from it;

[0061] (3) The retracted state of the carbon fiber extension rod is reliable and fixed, which can meet the mechanical environment requirements and thermal environment requirements of overload force, sinusoidal vibration, random vibration during launch and transportation;

[0062] (4) The deployment time of the carbon fiber extension rod is ≤5s;

[0063] (5) The fundamental frequency of the extended carbon fiber rod is >15Hz;

[0064] (6) The repeated deployment ...

Embodiment 2

[0073] A space-borne flexible and ultra-light folding carbon fiber extension rod, which can realize non-destructive 90-degree folding, that is, a 3-fold carbon fiber extension rod, 3-fold carbon fiber extension rod technical indicators and functional requirements:

[0074] (1) It is required to be able to fold at 90 degrees without damage;

[0075] (2) Two detection loads are installed on the flexible extension rod, one detection load is installed at the end of the flexible extension rod, and the other detection load is 500mm away from it;

[0076] (3) The retracted state of the carbon fiber extension rod is reliable and fixed, which can meet the mechanical environment requirements and thermal environment requirements of overload force, sinusoidal vibration, random vibration during launch and transportation;

[0077] (4) The deployment time of each flexible bending link of the carbon fiber extension rod is ≤5s.

[0078] (5) The fundamental frequency of the extended state of t...