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Proceedings Paper

Active vibration control of rotor system by a magnetorheological fluid damper
Author(s): Changsheng Zhu; Jiandong Jiang; David A. Robb; David J. Ewins
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Paper Abstract

A disk-type MR fluid damper based on shear mode has been developed and the experimental results show that the dynamic characteristics of a disk-type MR fluid damper can be controlled by the application of an external magnetic field with a low voltage. In this paper, the effectiveness of on-off control based on feedback of rotational speed, proportional (P) control and proportional-integral (PI) control, both based on feedback of disk vibration eccentricity, on controlling the rotor vibration are experimentally studied. It is shown that the simple on-off control was the most effective method in attaining the required objective, but as expected requires pre-knowledge of the switching speeds and there is a transient response with large amplitude at switching speeds. P and PI control can control the rotor vibrations, but both exhibit significant chattering which can adversely affect the control performance and still require to properly choose the controller parameters.

Paper Details

Date Published: 2 July 2001
PDF: 9 pages
Proc. SPIE 4331, Smart Structures and Materials 2001: Damping and Isolation, (2 July 2001); doi: 10.1117/12.432696
Show Author Affiliations
Changsheng Zhu, Imperial College of Science, Technology, and Medicine (China)
Jiandong Jiang, Imperial College of Science, Technology, and Medicine (United Kingdom)
David A. Robb, Imperial College of Science, Technology, and Medicine (United Kingdom)
David J. Ewins, Imperial College of Science, Technology, and Medicine (United Kingdom)


Published in SPIE Proceedings Vol. 4331:
Smart Structures and Materials 2001: Damping and Isolation
Daniel J. Inman, Editor(s)

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