The effect of the loading position on strength of a frame in a shuttle car for LMTT

The LMTT (linear motor-based transfer technology) is a horizontal transfer system in the maritime container terminal for the port automation. The system is driven by PMLSM (permanent magnetic linear synchronous motor) that consists of stator modules on the rail and the shuttle car. A frame of shuttle car are consists of inner beam which is the backbone part of a structure, an outer beam where the container box is put on, and the cross beam that connects the outer beam with the inner beam. We adopt simply supported boundary condition for the contacting points where the stator module supports the inner beam. We investigate the effect of the loading position on strength of a frame in shuttle car for LMTT. The results of this investigation are obtained from detailed finite element analysis implemented with respect to the number of used crossbeam.