Abstract

A damper system using MCF (Magnetic Compound Fluid) that is a mixture of MF (Magnetic Fluid) and carbonyl iron particles is proposed. With applying MCF to damper system, there is no sedimentation of magnetic particles (iron) that mixed with magnetic fluid so that the attenuation characteristics of the viscous damper would be kept without outer magnetic field. In this study, particular attention is paid for hysteresis characteristics of MCF with applying magnetic field so that the effect of the method of applying outer magnetic field to the damper is considered. As the results, it is found that there exists certain difference on the method of applying outer magnetic field, and it is noted that the hysteresis characteristics woulld be useful to change attenuation characteristics with applying outer magnetic field to the damper.

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