捻向组合对钢丝绳应力分布的影响规律

摘要

To reveal influence laws of twisting combination of the wire rope on stress distribution of the steel wire of the wire rope, according to the twisting formation theory of the wire rope, 6 × 19 IWS right-handed wire rope twisted in the same direction and 6 × 19 IWS right-handed wire rope twisted in different directions serve as examples to build their finite element model by ANSYS, and nonlinear FEA in tensile load mode is carried out in combination with the strength theory of the wire rope. The analysis results show that the stress of inside steel wire varies as a secondary space spiral, and the closer to the outside of the wire rope, the greater the stress of the steel wire is; the stress and its variation range of the wire rope twisted in different directions are lower than those of the wire rope twisted in the same direction.%为揭示捻向组合对钢丝绳股内钢丝应力的影响规律，根据钢丝绳捻制成形理论，以6×19IWS型右同向捻和右交互捻2种钢丝绳为例，利用ANSYS软件建立了钢丝绳的有限元模型，并结合钢丝绳的强度理论，对其进行拉伸载荷下的非线性有限元分析。结果表明，钢丝绳股内侧丝的应力呈空间二次螺旋线形状变化，并且侧丝越靠近外侧，其应力值越大；交互捻钢丝绳应力水平及变化幅度低于同向捻钢丝绳。