Projects:2014s2-80 Swinging Crane Project

Project aim: Swinging Crane project is aim to transporting a payload from one place to another and reducing the consuming time as much as possible.

1.Project introduction

Figure 1.Gantry crane system model

1.1.Technical background

Gantry cranes are wildly used in industry, for lifting heavy objects by a hoist which is fitted in a hoist trolley and can move horizontally on a rail or pair of rails fitted under a beam.

Figure 1 demonstrates the model of swinging crane, the DC motor controls the trolley to horizontally move a load in a short distance. There are two encoders to record the data, one is the moving distance, and another is sway angle of the load. By giving a signal from operation control system, it will generate a DC current from a current source, then injecting it into a motor, which would drive the conveyor belt. There is a trolley placed on one side of the belt, and start moving towards another side. At the bottom of the trolley, using a rod stand for the hoist, connect with a load. At the start of transporting the loads, it will cause accelerated, corresponds to a traction force, effect on the trolley. There occur an angle between the rod and vertical. After the trolley stops, the loads may turn to oscillate. If the initial angle large, the oscillation duration roses, which is a potential risk to the people on the ground.

9.Group members

Liyan Yi

Xianghui Ma

10.Supervisors

Dr.Wen Soong [1]

Dr Braden Phillips [2]