Frictional Forces Acting in a Strand or Wire Rope

作用在股线或钢丝绳上的摩擦力

• 批准号: 8504520
• 负责人: George Costello
• 金额: $ 14.5万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-12-15 至 1988-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8504520&HistoricalAwards=false
• 关键词: Frictional; Forces; Acting; Strand; Wire

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.

这项研究对钢丝绳和单股钢丝在承受轴向、扭转和弯曲载荷时的摩擦力进行了分析，并通过实验室实验验证了结果。 这项研究的第一部分将估计有效长度，从电线的断裂端开始测量，以维持其适当的负载份额。 该分析将涉及接触力、摩擦系数以及圣维南原理的调用。 研究的第二部分将确定带有摩擦的绳索的弯曲应力。 这将涉及细线非线性平衡方程的求解。 将在几种类型的钢丝绳上进行实验，以检查分析中所做假设的有效性。