Open AccessExperiments on Simulation Microgravity of Composite Deployable Antenna
Author(s) -
Bin Jia,
Wenfeng Bian,
Peng Ning
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/4/042019
Subject(s) - antenna (radio) , zero gravity , satellite , aerospace engineering , modal , hinge , vibration , folding (dsp implementation) , space (punctuation) , computer science , acoustics , engineering , physics , simulation , mechanical engineering , materials science , mechanics , telecommunications , operating system , polymer chemistry
After the satellite is launched into a special orbit in space, its space environment is zero gravity or microgravity. Therefore, in ground simulation experiments, it is necessary to consider overcoming the gravity of the earth and try to reduce or eliminate the influence of gravity. In this paper, the method of counteracting gravity by air-floating platform is used to simulate the space microgravity environment, and to do the unfolding experiments for single deployable antenna. After the deployment of the single antenna, the connection structure of single antenna is tested by modal experiment. The microgravity simulation experiment shows that the shape memory hinge can normally satisfy the folding and unfolding of a single antenna. The whole unfolding process is smooth and there is no obvious vibration. The first six modes and natural frequencies are obtained and compared with the simulation results. The comparison shows that the experimental results are in agreement with the simulation results.