Effectiveness of a disk-type magnetorheologic fluid damper for rotor system vibration control

Changsheng Zhu; David A. Robb; David J. Ewins

doi:10.1117/12.432720

2 July 2001 Effectiveness of a disk-type magnetorheologic fluid damper for rotor system vibration control

Changsheng Zhu, David A. Robb, David J. Ewins

Proceedings Volume 4331, Smart Structures and Materials 2001: Damping and Isolation; (2001) https://doi.org/10.1117/12.432720
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

A disk-type MR fluid damper based on shear operation mode is presented in this paper. The magnetic field of the disk-type MR fluid damper is analysed by the finite element method. The effect of excitation current in the coil on the magnetic flux density in the axial gaps filled with MR fluid is studied both theoretically and experimentally. Finally, the effectiveness of the disk-type MR fluid damper for attenuating vibration of rotor systems and of a simple open-loop on-off control based on the feedback of rotational speed on controlling vibration of rotor systems are experimentally studied. It is shown that the dynamic characteristics of the disk-type MR fluid damper can be controlled by a simple magnetic coil with a low voltage, and the disk-type MR fluid damper is very effective to attenuate vibration of rotor systems.

Citation Download Citation

Changsheng Zhu, David A. Robb, and David J. Ewins "Effectiveness of a disk-type magnetorheologic fluid damper for rotor system vibration control", Proc. SPIE 4331, Smart Structures and Materials 2001: Damping and Isolation, (2 July 2001); https://doi.org/10.1117/12.432720

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