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Modelling of Dual Controlled Maglev ISP System

Dommeti Rajesh, Jakkani Sivanaidu, Anusha Gunda, Mallikarjuna Rao Pasumarthi

Abstract


High precision pointing is one of the most eminent features of an airborne remote image sensing system.To provide accurate Line of Sight (LOS), the gimbal actuation system torque disturbance rejection capability is approximately proportion to the bandwidth of the stabilization loop.This is limited by the structural resonance in large inertially stabilized platform (ISP). Compared with traditional mechanical ISP, magnetic suspension ISP (MSISP) can efficiently suppress high frequency of vibrations via a magnetic suspension bearing system with five degrees of flexibility between azimuth and pitch gimbals. Although, the force acting between rotor and stator will introduce combine torque to roll and pitch gimbals.On other hand, complex structure of the magnetically suspended gimballing introduces the parametric uncertainties into modeling of magnetic suspension force. The disturbance between the magnetic fields brings the un-modeled force into dynamics of magnetically suspended gimballing. In this paper, a magnetic levitated system is consider on top of two axis elevation over Azimuth gimbal system and modeled with all magnetic, frictional and Physical non- linarites are into consideration. The results are compared existing mechanical ISP system shows better decoupling isolation with improved bandwidth characteristics.

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References


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DOI: https://doi.org/10.37628/ijemd.v1i2.314

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