Finite element analysis on the stress state of rope hoisting equipment based on the ABAQUS
This paper presents a simulation of the steel wire rope of a certain type hoisting equipment to explore the distributions of stress and deformation in the process of lifting heavy loads. The SolidWorks software was used to establish the 3D solid model of the 6*6+WS structure of stone cross strand wire rope for a certain lifting equipment. Then the solid model of steel wire rope was imported into the ABAQUS directly through the SolidWorks and ABAQUS interface plugin, the material properties were defined, the contact pairs were established, the model was meshed, and the constraints were applied to solve the finite element model. In the normal working range of the wire rope, axial tension of 5000 N was loaded to analyse the stress and deformation distributions. The results show that the stress of wire rope presents a space spiral distribution and the stress of the lateral steel wire of the rope strand is the largest of the steel wire rope, which will provide reference for the design and improvement of the steel wire rope.
Stress analysis of steel wire in strand based on optical lever principle and finite element calculation
Stress characteristics of 1 × 19 IWS steel strand are studied by an optical lever experimental device and a three-dimensional finite element model. The stress distribution of steel strand and its influences by friction coefficient and twist ratio are obtained. The results show that the deviation error between the experimental and simulated values of the deformation of steel strand is about 1%. The axial stress distribution of steel wire in strand is spiral along the strand axis and periodic variation, and layered along the strand radial direction. The increase in friction coefficient will significantly increase the shear stress between wires. Equivalent stress is less affected by twist ratio. The decrease in wire bending degree caused by the increase in twist ratio will reduce the shear stress.
Response of a wire rope strand to axial and torsional loads: Asymptotic modeling of the effect of interwire contact deformations
Abstract The refined discrete mathematical model of a simple helical wire rope strand is developed. The effect of the transverse contraction of the wire strand through Poisson’s ratio and also through local contact deformations (wire flattening) has been studied in detail. In order to express the interwire contact deformation in terms of the parameters describing the strand deformation, we formulate a two-dimensional model interwire contact problem. The interwire contact interaction is treated as a frictionless unilateral plain strain problem. The nonlinear model interwire contact problem has been solved by the method of matched asymptotic expansions. The constitutive equations for a helical wire rope strand, which take into account both the Poisson’s ratio effect and the effect of contact deformation, are obtained in a closed form.