Traditionally, container cranes are modeled as a simple pendulum with a lumped mass at the end of a cable. In the case of large container cranes, the actual configuration of the hoisting mechanism is significantly different; it consists typically of a set of four hoisting cables. These cables are hoisted from four different points on the trolley and are attached on the load side to four points on a spreader bar used to lift containers. The dynamics of the actual hoisting assembly of a container crane is different from that of a simple pendulum. A controller design based on the actual model will more likely result in a response superior to those based on simple models. In this work, a nonlinear mathematical model of the actual container crane is developed. A delayed position-feedback controller is designed. Performance of the controller is simulated on a 1/10 scale model of a 65-ton container crane using the full nonlinear model. Simulation results are verified experimentally on a 1/10 scale model of the same container crane.
- Design Engineering Division and Computers and Information in Engineering Division
Sway Reduction on Container Cranes Using Delayed Feedback Controller: Simulations and Experiments
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Masoud, ZN, Nayfeh, NA, & Nayfeh, AH. "Sway Reduction on Container Cranes Using Delayed Feedback Controller: Simulations and Experiments." Proceedings of the ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Chicago, Illinois, USA. September 2–6, 2003. pp. 2221-2229. ASME. https://doi.org/10.1115/DETC2003/VIB-48571
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