Impedance optimisation of a planar piezo-actuation stage for supports of rotating machines
by Luca Pugi
International Journal of Mechatronics and Automation (IJMA), Vol. 7, No. 2, 2020

Abstract: Actuator impedance play a key role in advanced vibration control applications. In this work author propose an innovative layout for a piezo-actuation stage devoted to the force/position controls of the supports of rotating machines. Proposed solution is designed in order to obtain an isotropic behaviour and a frequency response which is optimised respect to dynamical behaviour of controlled machine taking count of performance constraints of chosen piezo-actuators. Authors also introduce an innovative design procedure to proceed to a proper sizing of the proposed solution with limited costs in terms of needed computational resources. Proposed actuation layout and corresponding design procedure have been applied successfully applied to a benchmark test case in order to demonstrate their feasibility, reliability and potential advantages.

Online publication date: Mon, 03-Aug-2020

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