Title: Vibration control of two-mass mechatronic system with low inertia ratio

Authors: Kamal Abd Al-Majeed Khandakji

Addresses: Department of Electrical Engineering, Tafila Technical University, P.O. Box 179, Tafila 66110, Jordan

Abstract: This paper illustrates a mathematical analysis of mechanical vibrations, induced in hoisting mechanisms driven voltage-controlled three-phase induction motors. A new closed-loop control system for minimising torsional vibrations is proposed. The proposed control system is based on incorporating a feedback of the speed difference of both masses. A formula for calculating the optimum feedback gain of the speed difference is derived. A mathematical model of the proposed two-mass mechatronic system is developed. Using this developed model, the effect of the proposed control system on the shape of the system transient is illustrated and analysed.

Keywords: hoisting drives; two-mass system; vibration control; mechatronics; low inertia ratio; mechanical vibrations; induction motors; torsional vibrations; feedback gain; speed difference; mathematical modelling.

DOI: 10.1504/IJAAC.2009.026781

International Journal of Automation and Control, 2009 Vol.3 No.4, pp.352 - 362

Received: 10 Dec 2007
Accepted: 14 Jan 2008

Published online: 26 Jun 2009 *

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