Notice of RetractionCoupled vibration of hoist rope with complicated operating condition

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

In order to provide help for designing hoist control system to avoid resonance and enhance the safety in mine or elevator hoist system, coupled vibration behavior of hoist rope was investigated with complicated boundary such as the hoist rope restricted by guide pulleys. According to Hamilton principle, the mathematical model of extensional-torsional coupled considering arbitrary concentrated-mass of guide pulleys and torsional displacement boundary condition was built. Basing on the property of step function, the mode function of hoist rope was obtained and the method of numerical solution for displacement was proposed. At last, the analytical expressions of extensional and torsional displacements were obtained by supposing that the extensional and torsional damping coefficients were same. And the coupled displacement was obtained as an application example while a cargo merged into a conveyance.