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A Feedback Control System for Suppressing Crane Oscillations with On-Off Motors  

Hekman, Keith A. (Engineering Department, Calvin College)
Singhose, William E. (George W. Woodruff School of Mechanical Engineering, The Georgia Institute of Technology)
Publication Information
International Journal of Control, Automation, and Systems / v.5, no.3, 2007 , pp. 223-233 More about this Journal
Abstract
Crane payloads frequently swing with large amplitude motion that degrades safety and throughput. Open-loop methods have addressed this problem, but are not effective for disturbances. Closed-loop methods have also been used, but generally require the speed of the driving motors to be precisely controlled. This paper develops a feedback control method for controlling motors to cancel the measured payload oscillations by intelligently timing the ensuing on and off motor commands. The effectiveness of the oscillation suppression scheme is experimentally verified on an industrial bridge crane.
Keywords
Crane control; non-linear feedback; on-off control; vibration suppression;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 3  (Related Records In Web of Science)
Times Cited By SCOPUS : 4
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