Strength Analysis of Roller-Metallic Membrane Coupling

In order to solve the problems of common metallic membrane coupling which is easily damaged a large misalignment compensation coupling is designed. The coupling joins roller coupling with membrane coupling reasonably to ensure the coupling working well in large misalignment condition. Fatigue stress for common coupling and roller-metallic membrane coupling are analyzed by CosmosWorks software. The results show that the zone around bolt holes is easily damaged due to the high stress and lower safety factor. The design of roller-metallic membrane coupling reduces the high stress and lower safety factor zone to increase the anti-fatigue capability of the coupling.