Analysis on the structure strength of the marine winch's roller

It is important to research the work stress of the roller, which is the key part of mooring winch. This paper use the three-dimensional CAD software Pro-E to build a three-dimensional solid model of the roller, and analyse the force of the roller under the action of single layer cable. Then research the forces of roller and the side panels of the roller under the multi-layer cable and caculate the stress by the finite element method. Finally, replace the roller by a flexible body and research the change law of the drum during the cable winding process based on the theory of Rigid-Flexible coupling.