Performance Tests and Hysteresis Model of MRF-04K Damper
Publication: Journal of Structural Engineering
Volume 131, Issue 8
Abstract
Magnetorheolgical (MR) fluid is a kind of smart material whose rheological properties can be rapidly varied by application of a magnetic field. To take full use of the advantages of MR fluid for devices, a double-ended shear mode combined with a valve mode MRF-04K damper has been designed and manufactured, and the dynamic characteristics of the damper under sinusoidal excitation were experimentally studied. The maximum force at a full magnetic field strength is about 20 kN, while the maximum power required is less than 50 W. To accurately reproduce the dynamic behavior of the MRF-04K damper, the modified Bouc–Wen model has been investigated. Comparison with the data between the experimental and the predicted indicates that the modified Bouc–Wen model can accurately portray the behavior of the MRF-04K damper and is appropriate for use in control system design for civil structures.
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Acknowledgment
This research was sponsored by the National Science Fund for Distinguished Young Scholars of China through Grant No. 50425824 and the National Natural Science Foundation of China through Grant No. 50178047.
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Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 8 • August 2005
Pages: 1303 - 1306
Copyright
© ASCE.
History
Received: Feb 20, 2003
Accepted: Jan 4, 2005
Published online: Aug 1, 2005
Published in print: Aug 2005
Notes
Note. Associate Editor: Michael D. Symans
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