In recent years, there has been increasing research in several industrial fields for development of semi-active vibration control devices. In particular, devices using magneto-rheological (MR) fluid have been attracting great research interest because they can realize high performance as capacity-variable dampers. MR fluids are controllable fluids that respond to applied magnetic fields. Applied magnetic fields drastically change the viscosity of MR fluids from an oily state to a semi-solid state. This paper describes a study on a large capacity device using an MR fluid, i.e., an MR damper. This developed MR damper provides a maximum damping force of 300 kN. Various tests were carried out and the dynamic characteristics, force-displacement hysteresis loops and controllable forces were investigated. These tests verified that the MR damper provides a technology that enables effective semi-active control of large-scale structure systems, i.e., real buildings and civil engineering structures.
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February 2004
Technical Papers
Development of Large Capacity Semi-Active Seismic Damper Using Magneto-Rheological Fluid
Hiroshi Sodeyama,
Hiroshi Sodeyama
Test and Research Department, Sanwa Tekki Corporation, Utsunomiya, Japan
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Kohei Suzuki,
Kohei Suzuki
Department of Mechanical Engineering, Tokyo Metropolitan University, Tokyo, Japan
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Katsuaki Sunakoda
Katsuaki Sunakoda
Technical Division, Sanwa Tekki Corporation, Tokyo, Japan
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Hiroshi Sodeyama
Test and Research Department, Sanwa Tekki Corporation, Utsunomiya, Japan
Kohei Suzuki
Department of Mechanical Engineering, Tokyo Metropolitan University, Tokyo, Japan
Katsuaki Sunakoda
Technical Division, Sanwa Tekki Corporation, Tokyo, Japan
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division November 7, 2002; revision received May 30, 2003. Associate Editor: G. C. Slagis.
J. Pressure Vessel Technol. Feb 2004, 126(1): 105-109 (5 pages)
Published Online: February 26, 2004
Article history
Received:
November 7, 2002
Revised:
May 30, 2003
Online:
February 26, 2004
Citation
Sodeyama, H., Suzuki, K., and Sunakoda, K. (February 26, 2004). "Development of Large Capacity Semi-Active Seismic Damper Using Magneto-Rheological Fluid ." ASME. J. Pressure Vessel Technol. February 2004; 126(1): 105–109. https://doi.org/10.1115/1.1634587
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