Affiliations: [a] State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace in Xi’an Jiaotong University, China | [b] School of Civil Engineering, University of Sydney, Australia
Correspondence:
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Corresponding author: Minglong Xu, State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, Shaanxi, China. E-mail: mlxu@xjtu.edu.cn
Abstract: In this paper, we propose a hybrid structure for an adaptive feedback system. The proposed structure was validated through a two-dimensional pointing mechanism involving simulations and experiments, to provide an active vibration control strategy for a range of satellite antennas in a space environment. The performance of the adaptive hybrid control system was investigated numerically to suppress the simulated vibration both in a steady-state and under random excitation. Experiments were carried out with the two-dimensional pointing mechanism to further verify the capability of the proposed control system. Both the simulation and experimental results revealed that the proposed two-dimensional pointing mechanism with an adaptive hybrid feedback system was effective in reducing the deflection angle vibration response of antenna pointing.
