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Title: Coupling analysis and cross-feedback control of three-axis inertially stabilized platform with an active magnetic bearing system
Authors: Wen, T
Xiang, B 
Wong, W 
Issue Date: 22-Jul-2020
Source: Shock and vibration, 22 July 2020, v. 2020, 8290369, p. 1-17
Abstract: An active magnetic bearing (AMB) system is used to suspend the yaw gimbal of three-axis inertially stabilized platform (ISP) to minimize the friction. The dynamic functions of three gimbals in ISP are developed. The base coupling at dynamic base plate is stronger than that at static base plate, and the gimbal coupling among three gimbals increases with the number of unlocked gimbals. Therefore, a cross-feedback control scheme is designed to minimize the base coupling and the gimbal coupling, and then the multi-input multioutput system of three-axis ISP with coupling terms is simplified into three decoupled single-input single-output systems. Experimental results verify that the yaw gimbal suspended by AMB system has better vibration isolation ability than the roll gimbal supported by mechanical bearing, and the gimbal coupling and the base coupling are effectively suppressed by the cross-feedback control scheme.
Publisher: Hindawi Publishing Corporation
Journal: Shock and vibration 
ISSN: 1070-9622
EISSN: 1875-9203
DOI: 10.1155/2020/8290369
Rights: Copyright © 2020 Tong Wen et al. This is an open access article distributed under the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The following publication Wen, T., Xiang, B., & Wong, W. (2020). Coupling analysis and cross-feedback control of three-axis inertially stabilized platform with an active magnetic bearing system. Shock and Vibration, 2020, 1-17 is available at
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