Control of Bridge Cranes With Distributed-Mass Payload Dynamics

Dynamics and swing control of double-pendulum bridge cranes with distributed-mass beams

“…As with the double-pendulum cranes transporting point-mass payloads, increasing suspension cable length decreases the first-mode oscillation frequencies, while the payload mass has little effect on the first-mode frequency. Small variations in the mass ratio result in large changes in the second-mode frequency, while the suspension length has a small influence on the second-mode frequency [10,24]. The first-mode frequencies range from 0.40 Hz to 0.63 Hz, while the second-mode frequencies vary from 1.13 Hz to 1.65 Hz.…”

Anti-Swing Control of an Overhead Crane by Using Genetic Algorithm Based LQR

“…are used have been applied to cranes [2,3]. Open loop control schemes such as input shaping [4][5][6], adaptive input shaping [7] and distributed-mass payload dynamics [8][9][10] Although the open loop control techniques are cheaper and easy to implement since they do not require the use of sensors, they are very sensitive towards external disturbances since the control input does not account the changes of the system. Several types of closed loop control techniques have been implemented to crane systems for motion and swing control.…”

The Monospiral Motorised Cable Reel in Crane Applications

“…In papers [16,17,18] continuous anti-swing tracking schemes for crane systems are presented. Methods are based on information about the swing angle.…”