Structural Design and Analysis of a Deployable Parabolic-cylinder Antenna

doi:10.3901/JME.2020.05.100

Abstract

Abstract: A deployable parabolic-cylinder antenna can be used in satellite systems to realize functions such as wireless communication, deep space exploration, and space target search. In recent years, with the rapid development of the aerospace industry, the requirements of surface accuracy for space antennas are getting higher and higher. A deployable mesh parabolic cylindrical antenna mechanism is proposed and designed. The mechanism consists of a mesh support mechanism, a cable, a wire mesh, an axial drive and locking device, a radial drive and a positioning and locking device. The mesh support mechanism is constructed by linking radial and axial deployable mechanisms. In the research, a novel type of planar deployable mechanism is proposed as the component of the radial deployable mechanism to realize the radial expansion. The equivalent mechanism of the expandable mechanism is optimized. The design of the axial display mechanism is realized by linking the scissor linkages. The drive component design of the deployable mesh parabolic cylindrical antenna is performed. The CAD model of the proposed mechanism is built in Solidworks, and the model of the support mechanism is kinematically simulated.

Key words: deployable antenna, configuration design, rocker-slider mechanism, kinematic analysis, parabolic cylinder

CLC Number:

TN823

QIN Bo, Lü Shengnan, LIU Quan, DING Xilun. Structural Design and Analysis of a Deployable Parabolic-cylinder Antenna[J]. Journal of Mechanical Engineering, 2020, 56(5): 100-107.

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