| 管道磁化的有限元优化设计 |
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| 引用本文： | 黄松岭.管道磁化的有限元优化设计[J].清华大学学报(自然科学版),2000,40(2):67-69. |
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| 作者姓名： | 黄松岭 |
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| 作者单位： | 清华大学核能技术设计研究院,北京,100084 |
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| 摘 要： | 为计算磁路设计中永磁体几何参数对管道磁化效果的影响，采用了有限元方法研究管道磁化磁路中永磁体长度（10～40mm）、直径（25～100mm）改变时，管道表面缺陷（0.2mm深，0.2mm宽）产生的漏磁场的变化情况，得到了缺陷漏磁场水平分量B
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| 关 键 词： | 管道磁化 有限元方法 永磁体NdFeB 漏磁检测 |
| 文章编号： | 1000-0054(2000)02-0067-03 |
| 修稿时间： | 1999-04-26 |
Optimizing design of pipeline magnetization using the finite element method |
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| HUANG Songling.Optimizing design of pipeline magnetization using the finite element method[J].Journal of Tsinghua University(Science and Technology),2000,40(2):67-69. |
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| Authors: | HUANG Songling |
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| Institution: | HUANG Songling;
(Institute of Nuclear Energy Technology,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The influence of the geometric size of permanent magnets on pipeline magnetization in magnetic circuit design was analyzed using the finite element method. The flux leakage B x due to a pipeline defect (0.2mm depth, 0.2mm width) was calculated for various permanent magnet lengths (10~40mm) and diameters (25~100mm). Correlation curves are given for the magnetic flux leakage along with the length and polar area of magnet. The result can be used in magnetic circuit design for improving testing sensitivity and for providing a method for optimizing the magnetization design in magnetic flux leakage testing. |
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| Keywords: | pipeline magnetization finite element method permanent magnet NdFeB magnetic flux leakage testing |
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