Demonstration of non-collocated vibration control of a flexible manipulator using electrical dynamic absorbers
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This paper describes an experimental study into the vibration control of a servo system comprising a servo motor and a flexible manipulator. Two modes of the system are controlled by using the servo motor and an accelerometer attached to the tip of the flexible manipulator. The control system is thus non-collocated. It consists of two electrical dynamic absorbers, each of which consists of a modal filter and, in case of an out-of-phase mode, a phase inverter. The experimental results show that each absorber acts as a mechanical dynamic vibration absorber attached to each mode and significantly reduces the settling time for the system response to a step input.
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Smart Materials And Structures. Bristol: Iop Publishing Ltd, v. 22, n. 12, 4 p., 2013.
