A vibration damping component of a large self-deploying satellite antenna

A satellite antenna, self-expanding technology, applied in antenna parts, antennas, folded antennas, etc., can solve the problems of nonlinear friction and vibration, large energy consumption, control frequency bandwidth, etc., to facilitate disassembly and replacement of parts, suppress frequency bandwidth, The effect of suppressing lateral vibration
CN111129689BActive Publication Date: 2021-10-01BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2021-10-01

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Abstract

The invention discloses a vibration damping component of a large self-deploying satellite antenna, which aims to solve the surface accuracy error caused by vibration during the deployment process of the existing deployment antenna mechanism and during the attitude adjustment process after deployment. It includes multi-finger friction damper and self-resetting spring support friction damper, elastic drive hinge and satellite structure rod. The multi-finger friction damper controls the lateral vibration of the satellite deployment antenna, including a multi-finger rod, which is pressed on the structural rod through an adjustable pressure ring. The self-resetting elastic friction damper controls axial vibration, including metal rubber, guide rod, SMA pulling wire and outer sleeve. The elastically driven hinge provides deployment power through a vortex spring, and controls the deployment rate and synchronization through gears. The satellite structural rods are fixedly connected with other components to ensure the integrity of the deployed antenna. The invention is used in satellites and space probes.
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Description

technical field

[0001] The invention relates to the technical field of satellite flexible deployment mechanism, in particular to a vibration damping component of a large self-deploying satellite antenna, belonging to the technical field of aerospace equipment and equipment. Background technique

[0002] The development of mobile communication satellites equipped with large-aperture antennas, astronomical exploration satellites, geosynchronous observation satellites, and military reconnaissance satellites is the core technology for establishing high-resolution earth observation systems and space-based earth observation and detection systems. With the development of satellite technology, large-scale flexible self-deploying antennas are gradually developing towards the two technical characteristics of large deployment size and high surface accuracy, and the design requirements are getting higher and higher. Due to the limitation of the payload of the launch vehicle and the size...

Claims

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