Chaoization of DC Motors for Industrial Mixing

Conventional industrial mixing is ineffective, which consumes a lot of energy. In this paper, an effective mixing approach is proposed and implemented by using an electrical chaoization. Namely, a permanent-magnet DC motor, which acts as the agitator, is electrically chaoized by time-delay feedback control. It is identified that there are three adjustable control parameters: the torque parameter which induces chaotic motion, the speed parameter which adjusts the motion boundary, and the time-delay parameter which tunes the refreshing rate. Both computer simulation and experimental results are given to verify the proposed chaoization. Finally, realistic mixing of an acid-base solution is used to verify the effectiveness of the proposed chaotic mixing.