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首页> 外文会议>17th world conference on nondestructive testing (17th WCNDT) >Magnetic Field Mapping for Complex Geometry Defect - 3D Transient Problem
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Magnetic Field Mapping for Complex Geometry Defect - 3D Transient Problem

机译：复杂几何缺陷的磁场映射-3D瞬态问题

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摘要

A 3D visualisation of transient magnetic field mapping via finite element simulation for the characterisation of complex geometry defect is presented in this paper. In this work, we nalyse the Pulsed Eddy Current (PEC) testing application on detection and characterisation of complex geometry defect, i.e. angular slots, through the mapping of magnetic field distribution subject to the interaction between eddy current and defects in conductive samples. The investigation is implemented via time-stepping 3D Finite Element Analysis (FEA). Finite Element (FE) simulations conducted in transient mode were explored for the characterisation of angular slots. The results indicate the potential of complex geometry defect characterisation based on the visualisation and mapping of the magnetic field distribution. It is expected that the investigation will help in sensor (array) design and inverse models for complex geometry characterisation.
机译：本文通过有限元模拟对瞬态磁场映射进行了3D可视化，以表征复杂的几何缺陷。在这项工作中，我们通过分析分布在电磁场中涡流与缺陷之间相互作用的磁场分布图，分析了脉冲涡流（PEC）测试应用在复杂几何缺陷（即角槽）的检测和表征中的作用。通过时步3D有限元分析（FEA）进行调查。探索了在瞬态模式下进行的有限元（FE）仿真，以表征角槽。结果表明，基于磁场分布的可视化和映射，可以对复杂的几何缺陷进行表征。预期该调查将有助于传感器（阵列）设计和逆模型的复杂几何表征。

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