Experimental Study, Simulation and Analysis of the Fracture Failure of the Drum Shaft of a Casting Bridge Crane

This study investigated the fatigue fracture of bilateral drive drum shafts in casting bridge cranes including its morphology and factors, such as materials, manufacturing processes, loads. Seven conditions were designed to test effects changes speed torque during startup, commissioning braking under different A dynamic model was developed for structure control system hoisting mechanism. Changes motor simulated common operating load motor, asynchrony single-motor towing. The results showed that asynchronous starting braking, dragging other behaviors led left right undergo oscillated with a value reached 2 × 105 N∙m period approximately 13 s, residual about 3 104 retained after braking. torques on changed suddenly processes starting, shifting Dynamic loading root cause shafts.