Structural analysis of single girder overhead crane using SS400 and ST52-3 steel plate

Abstract

This paper is aimed to review the structure of single girder overhead crane using finite element analysis (FEA) technique. The strength and stiffness of existing single girder overhead crane with the capacity of 10 tons SWL and a span of 14 meters are calculated. The existing structure using SS400 steel plates is evaluated and compared with a new design using ST52-3. The stress and deformation of the existing structure are analyzed using Ansys software and a new design is proposed. Further, the effect of girder weight reduction to the decreasing of power required by the long-traveling motor is identified. The analysis shows the reduction of structure mass on the new design is 0.8 tons and the decrease in required traveling power is 1 kW. The maximum stresses of the existing and the new structure are 25 percent and 23 percent of the yield strength of the SS400 and ST52-3. The percentages of the maximum deformation to the allowable deflection limit are 43 percent and 58 percent, respectively.