The airborne inertially stabilized platform suspend by an axial-radial integrated active magnetic actuator system

• Published in: Journal of advanced research Vol. 31; pp. 191 - 205
• Main Authors: Wen, Tong, Xiang, Biao
• Format: Journal Article
• Language: English
• Published: Egypt Elsevier B.V 01.07.2021; Elsevier
• Subjects: Attitude stabilization precision; Axial-radial integrated AMA; Azimuth gimbal; Inertial stabilization platform; Mathematics, Engineering, and Computer Science; Axial-radial integrated AMA; Inertial stabilization platform; Azimuth gimbal; Attitude stabilization precision
• ISSN: 2090-1232; 2090-1224
• DOI: 10.1016/j.jare.2021.01.002

The experimental results show that the better attitude stabilization precision and the fast response speed benefit from the contactless suspension and active controllability of the axial-radial integrated AMA system, and it is potential to be applied in the airborne remote sensing system to improve the measurement accuracy. [Display omitted] •A novel structure of AMA system is designed and constructed, and the axial control and radial control are integrated in the AMA system.•The magnetic forces and the gimbal torques of the axial-radial integrated AMA system have good actively controllability and linearity.•The good tracking performance of the AMA system is experimentally verified, and mid-frequency disturbance is effectively suppressed. The inertial stabilization platform (ISP) is widely used in the earth observation system to stably track the line of sight of the payload because it could isolate vibrations and angular motions of the aviation platform. an active magnetic actuator (AMA) system integrating the axial and the radial control is used to levitate the azimuth gimbal to improve attitude stabilization precision and dynamic performance of the ISP, and then the dynamic model of azimuth gimbal is developed. The magnetic force and the gimbal torque of the axial-radial integrated AMA system are investigated, and the attitude information of the suspended azimuth gimbal is measured. The attitude stabilization precision of azimuth gimbal is confined at 0.02°, and the control bandwidth of the axial-radial integrated AMA system could exceed 100 Hz. the ISP with an axial-radial integrated AMA system has better attitude stabilization precision and wider control frequency than the pure mechanical ISP, so it is potential to be applied in the airborne remote sensing system to improve the measurement precision.