Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System

Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System

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...

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Main Authors: Tong Wen, Biao Xiang, Waion Wong
Format: Article
Language:English
Published: Hindawi Limited 2020-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2020/8290369
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spelling doaj-3364f954085e4d13bb3c1b026ef89cfc2020-11-25T03:28:52ZengHindawi LimitedShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/82903698290369Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing SystemTong Wen0Biao Xiang1Waion Wong2School of Instrument Science and Optoelectronics Engineering, Beihang University, Beijing 100191, ChinaDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, ChinaDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, ChinaAn 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.http://dx.doi.org/10.1155/2020/8290369
collection DOAJ
language English
format Article
sources DOAJ
author Tong Wen
Biao Xiang
Waion Wong
spellingShingle Tong Wen
Biao Xiang
Waion Wong
Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System
Shock and Vibration
author_facet Tong Wen
Biao Xiang
Waion Wong
author_sort Tong Wen
title Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System
title_short Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System
title_full Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System
title_fullStr Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System
title_full_unstemmed Coupling Analysis and Cross-Feedback Control of Three-Axis Inertially Stabilized Platform with an Active Magnetic Bearing System
title_sort coupling analysis and cross-feedback control of three-axis inertially stabilized platform with an active magnetic bearing system
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 2020-01-01
description 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.
url http://dx.doi.org/10.1155/2020/8290369
work_keys_str_mv AT tongwen couplinganalysisandcrossfeedbackcontrolofthreeaxisinertiallystabilizedplatformwithanactivemagneticbearingsystem
AT biaoxiang couplinganalysisandcrossfeedbackcontrolofthreeaxisinertiallystabilizedplatformwithanactivemagneticbearingsystem
AT waionwong couplinganalysisandcrossfeedbackcontrolofthreeaxisinertiallystabilizedplatformwithanactivemagneticbearingsystem
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