Dynamics and stability of rigid rotors levitated by passive cylinder-magnet bearings and driven/supported axially by pointwise contact clutch

Andersen, Søren Bøgh; Enemark, Søren; Santos, Ilmar

doi:10.1016/j.jsv.2013.07.006

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…The permeability of free space is denoted µ 0 . r is the vector from point P to R with directionr (unit vector) and length r. The integral is solved analytically as in [44].…”

Section: (A) Definition Of the Inertial And Moving Reference Systemsmentioning

confidence: 99%

Magnetically suspended flywheel in gimbal mount – Nonlinear modelling and simulation

Dagnæs-Hansen

Santos

2018

Journal of Sound and Vibration

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“…The permeability of free space is denoted µ 0 . r is the vector from point P to R with directionr (unit vector) and length r. The integral is solved analytically as in [44].…”

Section: (A) Definition Of the Inertial And Moving Reference Systemsmentioning

confidence: 99%

Magnetically suspended flywheel in gimbal mount – Nonlinear modelling and simulation

Dagnæs-Hansen

Santos

2018

Journal of Sound and Vibration

Self Cite

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“…Inayat-Hussain [21] studied the nonlinear dynamics of a magnetically supported rigid rotor in auxiliary bearings. Andersen et al [22] and Sugai et al [23] analyzed the rotation modes stability of the magnetically suspended rotor with passive cylinder-magnet bearings. Additionally, Pei [24] presented the stability boundaries of a spinning rotor with parametrically excited gyroscopic system.…”

Section: Introductionmentioning

confidence: 99%

Rotation Modes Stability Analysis and Phase Compensation for Magnetically Suspended Flywheel Systems with Cross Feedback Controller and Time Delay

Ren

Chen

Cai

et al. 2016

Mathematical Problems in Engineering

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This paper analyzes the effects of time delay on the stability of the rotation modes for the magnetically suspended flywheel (MSFW) with strong gyroscopic effects. A multi-input multioutput system is converted into a single-input single-output control system with complex coefficient by variable reconstruction, and the stability equivalence of the systems before and after variable reconstruction is proven. For the rotation modes, the stability limits and corresponding vibration frequencies are found as a function of nondimensional magnetic stiffness and damping and nondimensional parameters of rotor speed and time delay. Additionally, the relationship between cross feedback control system stability and time delay is investigated. And an effective phase compensation method based on cross-channel is further presented. Simulation and experimental results are presented to demonstrate the correctness of the stability analysis method and the superiority of the phase compensation strategy.

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Sliding Mode Control of Active Magnetic Bearings - A Cascaded Architecture

Papageorgiou,

Santos

2023

IFAC-PapersOnLine

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Dynamics and stability of rigid rotors levitated by passive cylinder-magnet bearings and driven/supported axially by pointwise contact clutch

Cited by 7 publications

References 22 publications

Magnetically suspended flywheel in gimbal mount – Nonlinear modelling and simulation

Magnetically suspended flywheel in gimbal mount – Nonlinear modelling and simulation

Rotation Modes Stability Analysis and Phase Compensation for Magnetically Suspended Flywheel Systems with Cross Feedback Controller and Time Delay

Sliding Mode Control of Active Magnetic Bearings - A Cascaded Architecture

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