【摘要】 应用微分几何理论分析钢丝绳结构特点及钢丝的空间螺旋缠绕关系,利用ANSYS软件开发常用的几种金属绳芯钢丝绳的建模程序,建立6×19IWS右同向捻和右交互捻两种钢丝绳的几何模型。通过适当的网格划分得到了钢丝绳的有限元模型,以钢丝绳一端约束三个方向自由度,另一端施加轴向集中载荷作为加载工况,确立模型求解的边界条件,并进行数值模拟。分析数值模拟结果,得出钢丝绳股内处于不同位置钢丝在长度方向上应力呈螺旋状分布,钢丝截面上应力呈中心对称分布的规律,对照分析两种捻向组合钢丝绳中对应钢丝的应力分布规律,指出捻向组合对钢丝绳股中钢丝应力分布的影响。确立钢丝绳拉伸试验方案,进行6×19IWS钢丝绳拉伸试验,用四种载荷下的拉伸变形量验证了数值模拟结果,试验结果与模拟结果基本吻合。更多还原

【Abstract】 The structure and dimensional helix characteristics of wire rope are analyzed on the basis of the differential geometry theory.The process, including several kinds of normal wire ropes with metal cores, is compiled with ANSYS software and the 6×19IWS right-hand lang-lay and right-hand regular-lay wire rope models are established.The finite element model of ropes can be acquired by appropriate meshing operation.The boundary conditions are set through restricting the degree of freedom in three directions at one end of wire rope and loading the mass force at the other end.Calculation results show that stress distribution is symmetry on the section and helix distribution on the face along length direction.It is found that the twist mode affects stress distribution.The 6×19IWS wire rope experiment under four different loading forces is carried out and the test results prove the effectiveness of the numerical simulation results.更多还原