Force-based feedforward control of persistent synchronous rotor/touchdown bearing contact in active magnetic bearing systems

Saket, Fawaz Y.; Keogh, Patrick

doi:10.1016/j.ymssp.2023.110657

Mechanical Systems and Signal Processing

2023

DOI: 10.1016/j.ymssp.2023.110657

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Force-based feedforward control of persistent synchronous rotor/touchdown bearing contact in active magnetic bearing systems

Fawaz Y. Saket

Patrick Keogh

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Cited by 2 publications

References 17 publications

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Multilocation-rub-impact behaviors of a magnetic-levitation bladed rotor with magnetic saturation nonlinearity

Kou,

Xu,

et al. 2025

Applied Mathematical Modelling

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Multilocation-rub-impact behaviors of a magnetic-levitation bladed rotor with magnetic saturation nonlinearity

Kou,

Xu,

et al. 2025

Applied Mathematical Modelling

View full text Add to dashboard Cite

Configuration angle effect on the control process of an oscillatory rotor in 8-pole active magnetic bearings

Kandil,

Hou,

Sharaf

et al. 2024

MATH

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<abstract> <p>In an active magnetic bearings (AMBs) model, every pair of opposite poles is aligned at an angle with the horizontal axis. In some configurations, there is a pair of poles which is in line with the horizontal axis. In other configurations, the same pair of poles might make a nonzero angle with the horizontal axis. This paper focused on the effect of changing such a configuration angle on the control process of an oscillatory rotor in an 8-pole active magnetic bearings model. Adopting the proportional-derivative (PD) control algorithm, the radial or Cartesian control techniques were applied. It was found that the rotor's oscillation amplitudes were not affected by the change in the configuration angle, even if its rotation speed and eccentricity were varied in the radial control scheme. However, the amplitudes were severely affected by the change in the configuration angle except at a specific angle in the Cartesian control scheme. The approximate modulating amplitudes and phases of the rotor's oscillations were extracted by the method of multiple-scales and a stability condition was tested based on the eigenvalues of the corresponding Jacobian matrix.</p> </abstract>

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Force-based feedforward control of persistent synchronous rotor/touchdown bearing contact in active magnetic bearing systems

Cited by 2 publications

References 17 publications

Multilocation-rub-impact behaviors of a magnetic-levitation bladed rotor with magnetic saturation nonlinearity

Multilocation-rub-impact behaviors of a magnetic-levitation bladed rotor with magnetic saturation nonlinearity

Configuration angle effect on the control process of an oscillatory rotor in 8-pole active magnetic bearings

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