独立钢丝绳芯钢丝绳应力及变形分布  

Distribution of equivalent stresses and deformations for 6 strand warrington-seale rope with an independent wire rope core

作　　者：吴娟[1,2] 寇子明[1,2] 刘玉辉[1,2] 吴国雄[1,2] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024 [2]山西省矿山流体控制工程(实验室)技术研究中心,山西太原030024

出　　处：《煤炭学报》2014年第11期2340-2347,共8页Journal of China Coal Society

基　　金：国家自然科学基金青年科学基金资助项目(51205272);国家国际科技合作专项资助项目(2011DFA72120)

摘　　要：以右交互捻钢丝绳为例,在一次螺旋线空间方程的基础通过Frenet-Serret标架上推导出二次螺旋线空间矢量表达式。构建了14-6×36WS-IWRC-s Z和14-6×36WS-IWRC-z Z两种钢丝绳有限元分析模型。采用Augmented-Lagrangian算法,分析两种捻向钢丝绳外股层钢丝应力及变形分布规律。研究结果表明:钢丝的捻制方式和空间位置对股内钢丝的应力及变形影响很大;右交互捻和右同向捻钢丝绳二次捻制钢丝的等效应力呈现不均匀分布,钢丝的最大等效应力随着曲率的变化而变化;右交互捻和右同向捻钢丝绳变形基本相同,同层钢丝变形呈现抛物线分布且绳股中离绳芯较近钢丝的变形均大于同层其它钢丝;右同向捻钢丝绳股内钢丝应力、变形及钢丝之间的错动量幅值均大于右交互捻钢丝绳。并进行14-6×36WS-IWRC-s Z钢丝绳拉伸试验,在误差允许范围内,试验结果与模拟结果基本吻合,验证了模型的正确性。The space curve of double helical wire for the right lang lay rope was deduced based on the space curve of single helical wire by Frenet-Serret frame. A realistic three-dimensional modeling approach and finite element analysis of ropes with 14 mm diameter were developed and two cables with different lay directions were modeled. The finite element analyses of two ropes were conducted based on Augmented-Lagrangian algorithm and the corresponding contact parameters. The results show the variation regularity of equivalent stresses and deformations of two ropes. The lay direction and spatial position of double helical wires have a great influence on the equivalent stresses and deformations of wires. In the two ropes,the equivalent stresses of double helical wires are not homogeneous. The double helical wires＇ stress has a great relationship with the spatial position of wires. The zone of maximum equivalent stresses is the zone of curvature change. The distribution of deformations in the right lang lay rope is analogous to that of the regular lay rope.The distributions of wires＇ deformations in each layer are sine or cosine distributions. In two ropes,the deformations of wire near to the core strand are larger than that of strand central wire,and the deformations of wires far away from the core strand are smaller than that of strand central wire. The equivalent stresses and deformations of the right lang lay rope are higher than those of the right regular lay rope. The results of present finite element analysis are valid in com-parison with those of experimental data.

关 键 词：独立绳芯 多股层 应力及变形分布 有限元法 

分 类 号：TD532[矿业工程—矿山机电]