15th Triennial World Congress of the International Federation of Automatic Control
  Barcelona, 21–26 July 2002 
INPUT SHAPING CONTROL OF CONTAINER CRANE SYSTEMS: LIMITING THE TRANSIENT SWAY ANGLE
Chang-Do Huha and Keum-Shik Hongb
a Department of Mechanical and Intelligent Systems Engineering, Pusan National
University, 30 Jangjeon-Dong, Kumjeong-Ku, Pusan, 609-735, Korea.
Tel: +82-51-510-1481, Fax: +82-51-514-0685, Email: cdhuh@pusan.ac.kr
b School of Mechanical Engineering, Pusan National University, 30 Jangjeon-Dong
Kumjeong-Ku, Pusan 609-735, Korea. Tel: +82-51-510-2454, Fax: +82-51-514-0685
Email: kshong@pusan.ac.kr

A modified input shaping control to reduce residual vibration at the end-point and to limit the sway angle of the payload during traveling for container crane systems is investigated. When the maneuvering time is minimized, a large transient amplitude and steady state oscillations may occur inherently. Since a large swing of the payload during the transfer is dangerous, the control objective is to transfer a payload to the desired place as quickly as possible while limiting the swing angle of the payload during the transfer. The conventional shapers are enhanced by adding one more constraint to limit the intermediate sway angle of the payload. The developed method is shown to be more effective than other conventional shapers for preventing an excessive transient sway. Computer simulation results are provided.
Keywords: crane system, input shaping control, feedforward control, time-optimal control, residual vibration, robustness
Session slot T-Th-E21: Posters of Transportation and Vehicles/Area code 8b : Automotive Control