钢丝绳典型缺陷的漏磁场有限元仿真

采用有限元仿真的方法，分析了提离距离、缺陷宽度和深度以及缺陷在钢丝绳内的深度等参数与漏磁场的关系，得出了提离距离并不是越小越好的结论；并且缺陷宽度与提离距离的和等于漏磁场径向分量峰一峰值间距；漏磁场轴向分量与缺陷深度近似成线性关系；漏磁场轴向分量与缺陷在绳内深度成线性关系。

Magnetic Flux Leakage of Typical Defect of Wire Rope Based on FE Simulation

Finite element simulation was used to analyze the relationship between MFL and the lift-offs, defects＇ width, depth and in-rope depth. It concluded that lift-offs was not the smaller the better; the sum of defects width and lift-offs were equal to the distance of peak-peak at the radial part of MFL; the axial part of MFL and defect depth were in linear relation approximately, so were the defects＇ in-rope depth.