Command shaping boom crane control system with nonlinear inputs Conference Paper uri icon

abstract

  • This paper presents the application of a command shaping control method for suppressing payload swing caused by operator commanded maneuvers, in rotary, ship-based, boom cranes. The crane configuration investigated, consists of a payload mass that swings on the end of a spherical pendulum of varying lift-line length (hoisting). The lift-line is attached to a boom capable of elevation (luffing) and rotation about a vertical axis (slewing). Positioning of the payload is accomplished through luff, slew and hoist commands issued in real-time by an operator. Payload oscillation is excited by a nonlinear combination of the operator's inputs. It is shown that linear filters are sufficient under certain conditions. The command shaping strategy, consisting of a time-varying filter, reduces payload oscillation by 18 dB in experiments using the 1/16th scale Navy Crane Testbed at Sandia National Laboratories.

published proceedings

  • IEEE Conference on Control Applications - Proceedings

author list (cited authors)

  • Parker, G. G., Groom, K., Hurtado, J., Robinett, R. D., & Leban, F.

complete list of authors

  • Parker, GG||Groom, K||Hurtado, J||Robinett, RD||Leban, F

publication date

  • December 1999