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Vibration of a rotating flexible ferromagnetic disc subject to a solenoid electromagnet

journal contribution
posted on 2023-06-07, 19:45 authored by Yong-Chen Pei, H Lu, Chris ChatwinChris Chatwin
A rotating flexible ferromagnetic annular disc with initial unstressed transverse runout subjected to a solenoid electromagnet is modelled and investigated. The total transverse deflection of the steady-state response of the rotating disc is analysed, and the condition of undamped resonance induced by the initial transverse runout and the stiffness of the electromagnetic force is evaluated. A quadratic eigenvalue problem is obtained and employed to study natural frequency and dynamic stability of the rotating disc. Analytical results show that the solenoid electromagnet can cause not only dynamic instability but also system resonance of the rotating disc if it has the initial transverse runout; the instability and resonance tend to occur at a lower rotational speed with the increase of the stiffness of the electromagnetic force.

History

Publication status

  • Published

Journal

Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics

ISSN

1464-4193

Publisher

Sage Publications Ltd

Issue

3

Volume

225

Page range

195-203

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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