Sensing System to Detect Center of Gravity of a Lifting Load for a Crane

Experiments Using a Model near Actual Load

Abstract

When lifting heavy load with a crane, misalignment between the crane hook and the center of gravity of the load causes sometimes accidents. This work can be performed safely by adjusting the crane hook after measuring the misalignment of the load. In this report, we measure the side forces of the load by placing the force sensors when lifting the load. We calculate the misalignment from the relationship of the detected forces and the lifting force. We prove this possibility by experiments using a load model of about the size of 1m³ near actual condition.