Semi Active Control of Chaos in Systems Excited by Non-Ideal DC Motor
In this paper, semi active control of non-ideal mechanical system with Magneto-Rheological (MR) damper is presented. The setup composed of a motor operating on a structure with mass M connected to a fixed frame by a non-linear spring and with a linear viscous damper. From the investigations carried out it is possible to observe the DC motor influence on the vibrating system along with non-periodic motions with chaotic characteristic. To control this system linear viscose damper is substituted by MR damper. A semi-active control method, sky-hook control is used in this study. Our results suggest that the addition of a MR damper turns the phase space smoother and it is so effective to suppress chaos.
S. Farokhi et al., "Semi Active Control of Chaos in Systems Excited by Non-Ideal DC Motor", Applied Mechanics and Materials, Vols. 110-116, pp. 5367-5372, 2012