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Modelling and Simulation in Engineering
Volume 2015, Article ID 729582, 11 pages
Research Article

Characterization and Modelling of LeBlanc Hydrodynamic Stabilizer: A Novel Approach for Steady and Transient State Models

Department of Mechanical Engineering, University of São Paulo, 80320-260 São Carlos, PR, Brazil

Received 14 October 2014; Revised 12 March 2015; Accepted 14 March 2015

Academic Editor: Aiguo Song

Copyright © 2015 Marlon Wesley Machado Cunico. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


As result of increase of customers’ demands, products become more complexes and dynamics control increased its role into product development. As example, clothing washing machines use LeBlanc balancers in order to reduce vibration issues. Nevertheless, the behaviour of such apparatus is still hard to describe and the numerical simulation of this sort of vibration control is based on ball rings. The main goal of this work is to define and characterize a numerical model that describes the hydrodynamics balance ring in the transient state in addition to steady state models. As consequence, the behaviour of balance ring was identified in a computational fluid dynamics tool and an equation that describes restoration forces, unbalance, force phase, and eccentricity was found.