Frictional Forces Acting in a Strand or Wire Rope

本研究分析了在轴向、扭转和弯曲载荷作用下钢丝绳和单股钢丝绳的摩擦力，并通过实验室实验验证了结果。本研究的第一部分将估计有效长度，从电线断裂的一端测量，以维持其适当的负荷份额。这种分析将涉及接触力、摩擦系数和圣维南原理的调用。研究的第二部分将确定有摩擦的绳子的弯曲应力。这将涉及到一根细导线的非线性平衡方程的解。将对几种类型的钢丝绳进行实验，以检查分析中所作假设的有效性。

This research performs an analysis of the frictional forces in wire ropes and in the individual strands when subjected to axial, torsional, and bending loads and verifies the results with laboratory experiments. The first portion of this research will estimate the effective length, measured from the fractured end of a wire, to sustain its appropriate share of the load. This analysis will involve the contact forces, the coefficient of friction, and an invocation of Saint-Venant's principle. The second portion of the research will determine the bending stresses in a rope with friction. This will involve the solution of the nonlinear equations of equilibrium for a thin wire. Experiments will be performed on several types of wire ropes to check the validity of the assumptions made in the analysis.