Title: Comparison of active and semi-active damping in synthesis of various mechatronic discrete systems

Authors: Katarzyna Bialas; Andrzej Buchacz; Damian Galeziowski

Addresses: Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice 44-100, A. Konarskiego St., Poland ' Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice 44-100, A. Konarskiego St., Poland ' Faculty of Mechanical Engineering, Silesian University of Technology, Gliwice 44-100, A. Konarskiego St., Poland

Abstract: Presented research highlights possibility of application of additional active absorbers to mechatronic discrete structures for vibration isolation, in relation to requirements in form of poles and zeros. This new function is defined and compared with semi-active configuration of mechatronic systems that can be obtained by LC or LRC control in external electric network with negative capacitance. Basing on selected examples and types of considered displacement models received from synthesis, respective parameters responsible for damping functions have been investigated. Comparing frequency response functions and dynamical flexibilities, active and semiactive vibration isolation methods have been confronted with regards to damping performance.

Keywords: piezostack actuators; piezoelectric actuators; vibration isolation; synthesis; active damping; semi-active damping; discrete mechatronic systems; negative capacitance; mechatronics.

DOI: 10.1504/IJMPT.2015.068555

International Journal of Materials and Product Technology, 2015 Vol.50 No.3/4, pp.340 - 355

Received: 21 Aug 2013
Accepted: 03 Oct 2014
Published online: 05 Apr 2015 *

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