The Application of Topological Gradients to Defect Identification in Magnetic Flux Leakage-Type NDT

Li M.; Lowther D. A.

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The Application of Topological Gradients to Defect Identification in Magnetic Flux Leakage-Type NDT

机译：拓扑梯度在漏磁型无损检测中缺陷识别中的应用

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An inverse problem is formulated to indentify the shape and size of the defects in a nonlinear ferromagnetic material using the signal profile from magnetic flux leakage-type NDT. This paper presents an efficient algorithm based on topological shape optimization which exploits the topological gradient to accelerate the process of shape optimization to identify the defect. Topological gradient images for the cracks are obtained using 2-D and 3-D finite element models. Robustness of this imaging method in the presence of noise is also evaluated.

机译：提出了一个反问题，以利用来自磁通量泄漏型NDT的信号曲线来识别非线性铁磁材料中的缺陷的形状和大小。本文提出了一种基于拓扑形状优化的有效算法，该算法利用拓扑梯度加快了形状优化识别缺陷的过程。使用2-D和3-D有限元模型可获得裂纹的拓扑梯度图像。还评估了这种成像方法在存在噪声的情况下的鲁棒性。

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《Magnetics, IEEE Transactions on》 |2010年第8期|p.3221-3224|共4页
作者
Li M.; Lowther D. A.;
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作者单位

Department of Electrical and Computer Engineering,, McGill University,, Montreal,, Canada;

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原文格式 PDF
正文语种 eng
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关键词
Inverse problems; magnetic flux leakage signals; nondestructive testing; topology optimization;

机译：反问题;漏磁信号;无损检测;拓扑优化;

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1. Topological sensitivity of energy cost functional for wave-based defect identification [Gradient topologique d'une fonction-co?t énergétique pour l'identification de défauts en élastodynamique] [J] . Bonnet M. Comptes rendus. Mecanique . 2010,第7a8期

机译：用于基于波的缺陷识别的能量成本函数的拓扑敏感性[用于识别弹性动力学缺陷的能量成本函数的拓扑梯度]
2. Induced vacuum magnetic flux in quantum spinor matter in the background of a topological defect in two-dimensional space [J] . Yurii A. Sitenko, Volodymyr M. Gorkavenko Physical review, D . 2019,第8aPta2期

机译：在二维空间的拓扑缺陷的背景下诱导真空磁通量。
3. Quantum effects due to a magnetic flux associated to a topological defect [J] . Marques GD, Bezerra VB, Furtado C, International Journal of Modern Physics, A. Particles and Fields, Gravitation, Cosmology . 2005,第26期

机译：由与拓扑缺陷相关的磁通量引起的量子效应
4. New Approach to Defect Detection for NDT Applications by Using Topological Derivative [C] . L. L. Ge, Y. J. Zhang International Conference on Visual Information Engineering . 2008

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5. Magnetic and optical holonomic manipulation of colloids, structures and topological defects in liquid crystals for characterization of mesoscale self-assembly and dynamics. [D] . Varney, Michael C. M. 2014

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6. Magnetically Actuated Manipulation and Its Applications for Cartilage Defects: Characteristics and Advanced Therapeutic Strategies [O] . Chi Zhang, You-Zhi Cai, Xiang-Jin Lin, 2020

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7. Induced vacuum magnetic flux in quantum spinor matter in the background of a topological defect in two-dimensional space [O] . Yurii A. Sitenko, Volodymyr M. Gorkavenko 2019

机译：在二维空间的拓扑缺陷的背景下诱导真空磁通量。

The Application of Topological Gradients to Defect Identification in Magnetic Flux Leakage-Type NDT

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