电磁探伤用于金属边际裂纹检测的仿真研究

摘要

For the common internal and external rectangular marginal crack which often difficult to detect with existing detection system in metal structure and its characteristics,a new kind of non-planar eight-coil electromagnetic testing sen-sor structure is present in this paper.The material Steel_1010 is chosen to be test metal plate material,and using Ansys simulation software Maxwel and finite element analysis for the sensor structure modeling.%针对金属结构中常出现的、现有检测系统较难检测的内直角型和外直角型边际裂纹及其特点,提出了一种新型的、非平面型的电磁探伤八线圈传感结构.选择了以金属材料Steel_1010为被测金属板,利用Ansys Maxwel 仿真计算软件及有限元分析法对该传感结构进行建模,提出了仿真失真值的概念和计算式,并将之作为仿真结果分析的主要依据之一,在此基础上对非平面型八线圈传感阵列检测的可行性及激励模式进行了仿真分析和验证,并选取了适合不同边际裂纹的电磁探伤激励模式.