基于半解析法的钢绞线丝间摩擦学性能研究  

Interwire Tribological Properties of a Steel Strand Based on Semi-Analytical Method

作　　者：王庆 陈原培 何义团[1] 徐进[1] 周建庭[2] WANG Qing;CHEN Yuanpei;HE Yituan;XU Jin;ZHOU Jianting(College of Traffic&Transportation,Chongqing Jiaotong University,Chongqing 400074,China;State Key Laboratory of Mountain Bridge and Tunnel Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]重庆交通大学山区桥梁与隧道工程国家重点实验室,重庆400074

出　　处：《摩擦学学报》2023年第12期1453-1466,共14页Tribology

基　　金：国家自然科学基金项目(51805058);重庆市自然科学基金项目(cstc2019jcyj-msxmX0646);重庆市研究生联合培养基地建设项目(JDLHPYJD2020028);重庆市高校创新研究群体项目(CXQT21022)资助。

摘　　要：为探究钢绞线丝间摩擦学性能,考虑钢绞线丝间摩擦接触和往复滑动行为等因素,基于曲杆理论、Archard磨损理论等,建立了周期弯曲钢绞线丝间摩擦学性能求解模型,采用半解析法实现快速求解,并通过与曲杆理论、有限元仿真结果对比以及磨损试验验证模型有效性,进而研究钢绞线丝间磨损深度、摩擦接触滑移等摩擦学性能参数的分布规律,分析载荷幅值、几何结构以及材料属性等对其丝间摩擦学性能的影响.结果表明:钢绞线丝间磨损发生在弯曲中性层外侧,钢丝未接触或接触但未发生滑移之处不发生磨损;弯曲载荷越大,磨损越严重;侧丝半径、捻角越大,丝间接触压力与接触变形均增大,故而磨损加剧;总磨损深度随钢绞线材料的弹性模量和泊松比增大而增大.Steel strand is widely used as a key component in metallurgy,mining,petroleum,aerospace and other fields with its advantages such as high bearing capacity and good flexibility.For the steel strand which needs to be repeatedly wound around a drum,pulley or other parts in service,the internal steel wire frictional wear occurs due to the cyclic bending,resulting in the reduction of cross-sectional area of the steel strand and degradation of its bearing performance.Meanwhile,the load amplitude,geometrical structure and material properties will affect the improvement of the interwire tribological properties of the steel strand.Therefore,the interwire tribological properties of the steel strand under different service conditions were explored,which provided theoretical basis for the design and application of the steel strand.Firstly,a numerical analysis model of interwire tribological properties of a steel strand subjected to cyclic bending load was built based on Kirchhoff-Love theory and Archard’s theory of wear,with the consideration of the interwire frictional contact and reciprocating sliding behavior within the strand,during which a semi-analytical method was adopted to realize the fast calculation.Then,the present numerical model was validated through comparisons with Kirchhoff-Love theory and the finite element method,as well as a wear experiment.In addition,the results were consistent with the theoretical results,finite element simulation results and test data,respectively.It showed that the present numerical analysis model was able to give a reasonable evaluation of the interwire tribological properties of the steel strand under a cyclic bending load condition.Finally,the distributions of tribological parameters such as wear depth,slip distance,contact pressure and contact deformation of the steel strand were studied.The influences of load amplitude,geometrical structure and material properties on the interwire tribological properties of the wire strand were also analyzed.In conclusion,it was revealed that

关 键 词：钢绞线 往复滑动 摩擦接触 丝间磨损 半解析法 

分 类 号：TH117.1[机械工程—机械设计及理论]