Semi-active, controllable fluid dampers and their control devices are described and studied in this paper. Such dampers can be used to eliminate oscillations in different servo drive robots and machine tools systems, where their good dynamic parameters are required. In this paper, different control circuits and its influence on MR damper properties are investigated. The experimental results of coil current transients response during switching on and off with different circuits and elements are shown. Construction of the above mentioned damper is described and finally, experimental results of control circuits influence on dampers’ dynamic performance are presented.
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