Lomakin A. Clarification of the methodology for calculating the determination of efforts in the elements of steel wire rope when winding on the drum

The coefficient of reduction of tension of a steel wire rope is deduced. A comparison of the results is made. For a more precise solution, a correction factor is introduced which takes into account the stiffness and type of steel wire rope lay. The problem of determining the additional efforts that arise when winding the steel wire rope on the drums and bending on the blocks is considered. The element of a steel wire rope, which passes from a straight section to a bend on a block, is considered. A new calculation based on the classical theory, namely Hooke's law is proposed. The distribution of forces in the steel wire rope elements, which is winding on the drum, is considered. A new calculation based on the classical theory, namely on the Kirchhoff equations system, is proposed. Graphical representation of forcing and forces acting on a steel wire rope bent on a drum is shown. The results of theoretical study of dynamic loads arising in the lifting mechanism, and graphs of dynamic oscillations are presented. Several series of experimental studies have been carried out with the change of the investigated samples and conditions of the experiment. The analysis of the stress-strain state of a steel wire rope winding on a drum by the method of finite elements is carried out.