Satellite-borne flexible ultra-light folding carbon fiber extending rod

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.

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 ...

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Problems solved by technology

[0023] To sum up, among the current mainstream spatial extension arms: thin-walled tubular extension arms have low bending and torsional rigidity, making it difficult to achieve precise positioning; Larger mass; the articulated extension arm is generally used for larger spacecraft or space stations due to its large scale of equipment. For general-scale satellites, especially for micro-satellites that are getting more and more attention, their volume and mass are too large ; Although the coiled extension arm has a simple structure and light weight, it has low rigidity and cannot be used for a payload support system with high detection accuracy; although the inflatable space extension arm has good characteristics, it needs to be equipped with inflatable auxiliary equipment. It will take up relatively tight on-board resources

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