Physics / Engineering
Crane and anti-sway control
Lift and transfer steel blocks with a bridge crane; compare motion with and without sway feedback.
What happens
Lower the magnetic head onto a block, switch the magnet on, lift and travel. Compare anti-sway on/off. The cable can go slack; release returns cargo to gravity. The magnet is a short-range latch, not a computed electromagnetic field. Trolley drives are prescribed.
Equations used in the module
Equations |xhead − xtrolley| ≤ L; rope tension ≥ 0 Small-angle pendulum: θ″ + (g/L) θ = −xtrolley″/L
