Analysis on vibration of the gear-and-rack construction hoist

The construction hoist's vibration analysis has been caused extensive concern as the important vertical conveying machinery. The purpose of this study was to analyze the vibration of the construction hoist. The system vibration mechanical model was set up and then the system's various steps natural frequency with the different carrying loads and the different position had been obtained by using Matlab software. Finally, the tendency of the natural frequency with carrying loads and the elevator cage's position and the response about the given initial condition were analyzed.