Suspension type vertical unfolding test device for planar array antenna

Abstract

The invention discloses a suspension type vertical unfolding test device for a planar array antenna. The suspension type vertical unfolding test device comprises a truss bearing system, a gravity unloading system and an unfolding control system. The truss bearing system is used for providing gravity unloading system and unfolding control system installation interfaces. And the gravity unloading system is used for providing accurate gravity unloading in the vertical unfolding process of the planar array antenna. The unfolding control system is connected with the gravity unloading system to provide unfolding power for the planar array antenna and control the planar array antenna to be unfolded according to the unfolding speed required by a product. According to the invention, the problem that the satellite planar array antenna simulates the zero gravity condition of a space environment orbit in a ground gravity environment is solved; the defects of low gravity unloading precision, largedamping, poor safety and the like of a guide rail pulley follow-up type unfolding test device in the prior art are overcome; the device can be used for expansion test verification of the satellite planar array antenna under complex working conditions such as a thermal vacuum test chamber, and has the beneficial effects of high precision, small friction damping, simple structure, high safety and the like.

Description

technical field [0001] The invention relates to satellite ground testing technology, in particular to a gravity unloading device suitable for vertical two-dimensional deployment tests of spaceborne deployment equipment such as planar array antennas. Background technique [0002] Planar array antenna is an important payload in satellite field. Satellites need to conduct sufficient environmental tests on the ground (such as thermal vacuum tests) to assess the performance of satellites in high vacuum and low temperature environments, and the performance matching and coordination between various systems. The planar array antenna needs to be deployed in zero-gravity in a thermal vacuum test chamber, and maintain a working attitude for thermal vacuum test verification. [0003] There are two ways to deploy the planar array antenna: vertical two-dimensional deployment and horizontal two-dimensional deployment. The satellite thermal vacuum test requires that the planar array antenn...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a suspension-type vertical deployment test device for planar array antennas, which solves the problems of low gravity unloading precision, large frictional damping, and poor safety in the prior art, simplifies the deployment test device, and improves gravity unloading. Accuracy, reduced friction damping, simple structure, improved safety factor

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