Method of damping the sway of the load of a crane

Details Method of damping the sway of the load of a crane Method of damping the sway of the load of a crane

1990-06-12

1992-07-07

Basinger, Sherman D.

Traversing hoists

With haul-in line

212146, B66C 1900

Patent

active

051275333

ABSTRACT:
Procedure for damping the sway of the load (2) moved by the carriage (1) of a crane, said load being suspended on at least one hoisting rope (3). The damping is achieved by using a discrete time control system whose control interval is varied in accordance with the hoisting rope length (L) while the control parameters remain constant.

REFERENCES:
patent: 3517830 (1970-06-01), Virkkala
patent: 4717029 (1988-01-01), Yasunobu
patent: 4756432 (1988-07-01), Kawashima et al.
"Pole-Placement Control of a Pilot Gantry" by Arto Marttinen, Proceedings of the 1989 American Control Conference, Jun. 21-23 1989, vol. 3, pp. 2824.gtoreq.2826.
"Modelling and Analysis of a Trolley Crane," Proceedings of the Intern. AMSE Conference Modelling & Simulation, Pomona, Calif. (USA), Dec. 16-18, 1987, vol. 3, pp. 15-26.
"Computer Control of a Loading Bridge," IEE International Conference, Control '88, Oxford, UK, 13.-15. Apr. 1988.
"Nonlinear Modeling and Control of Overhead Crane Load Sway," Transactions of the ASME, vol. 110, Sep. 1988, pp. 266-271.

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