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Modelling and control of a novel vibratory feeder

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2 Author(s)
W. Y. Du ; George W. Woodruff Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; S. L. Dickerson

The system identification and real-time control of a vibratory feeder (VF) are discussed. The feeder simply uses a horizontally-vibrating flat bed to feed various parts. Only the 2D motions (translations in the x and y axes) are analyzed here. The system is nonlinear and highly uncertain, because the motion of the part depends on the Coulomb friction on the contacting surface. A modified pulse-width modulation (MPWM) signal is developed to control the vibration of the bed. A four-time-interval control algorithm is investigated so that both bed and part move in the desired manners. Both open- and closed-loop simulations of the VF system are implemented to verify the feasibility of the system model, the MPWM signal, and the control algorithms

Published in:

Advanced Intelligent Mechatronics, 1999. Proceedings. 1999 IEEE/ASME International Conference on

Date of Conference: