Lifetime of large twisted and tension-tension loaded wire ropes

大扭力和张力负载钢丝绳的使用寿命

• 批准号: 279164903
• 负责人: Professor Dr.-Ing. Robert Schulz, since 7/2019
• 金额: --
• 依托单位: Institut für Fördertechnik und Logistik (IFT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/279164903?language=en
• 关键词: Lifetime; large; twisted; tension; loaded

The proposed research project aims to develop a basic understandingof the size effect on the life of wire ropes with combined tensiontensionand torsional loads, building up on the test series of Wehking /Ernst conducted in 2011 with 12 mm. In addition, a useful data basefor the calculation and interpretation of standing guy ropes, more than20,000 in the offshore area in use, shall be developed. The results willenable tension-tension loaded wire ropes to use their superiorpotential in durability. In addition, a security vulnerability in terms ofpreviously unknown influences in torsion is closed. The ropes should be tested as in the at IFT performed and positive peer reviewedresearch project with systematic variation of the relevant parametersin tension-tension-tests to break. The evaluation is done using thegenerated in Wehking / 2011 Ernst basis of calculation. The relevantparameters are defined:1. rope construction,2. rope diameter,3. twisting of the wire about its longitudinal axis,4. amplitude of the tension-tension load and5. underload of the tension-tension load.

拟议的研究项目的目的是在2011年进行的12毫米Wehking/Ernst测试系列的基础上，对拉伸和扭转联合载荷下钢丝绳的尺寸效应对寿命的影响有一个基本的了解。此外，还应开发一个有用的数据库，用于计算和解释直立拉索，在使用的近海区域有2万多条。研究结果将使张力加载钢丝绳在耐久性方面发挥其优越的潜力。此外，在扭转方面以前未知的影响方面的安全漏洞也被关闭。钢丝绳的测试应与AT IFT中进行的测试一样，并对研究项目进行积极的同行评审，同时对拉伸测试中的相关参数进行系统变化以使其断裂。评估是使用Wehking/2011 eRnst计算基础生成的。定义了相关参数：1.钢丝绳结构，2.钢丝绳直径，3.钢丝绳绕其纵轴扭转，4.拉伸载荷的幅值，5.钢丝绳的直径。拉伸过载--拉紧载荷。