| 裂纹漏磁场的数值模拟 |
| |
| 引用本文： | 郑慕林,刘富君,孔帅,凌张伟,钱岳强,赵力伟,夏珺芳.裂纹漏磁场的数值模拟[J].无损检测,2011(9):43-48,53. |
| |
| 作者姓名： | 郑慕林 刘富君 孔帅 凌张伟 钱岳强 赵力伟 夏珺芳 |
| |
| 作者单位： | 浙江省特种设备检验研究院; |
| |
| 基金项目： | 国家公益性行业科研专项资助项目(2012424059) |
| |
| 摘 要： | 漏磁检测技术广泛应用于储罐底板扫查、管道内壁缺陷检测中。文章以裂纹漏磁场为研究对象，以麦克斯韦方程组为理论基础，以数值模拟为手段，建立裂纹漏磁场三维静态数值模拟模型，用数值模拟和试验方法研究裂纹深度、宽度、裂纹倾斜角度以及裂纹间距等参数对裂纹漏磁场的影响，得到裂纹参数与裂纹漏磁场幅值之间的关系。结果表明：裂纹倾斜角度对裂纹漏磁场幅值影响显著，因此在工程实际检测中，要从不同方向进行漏磁扫描，以防止漏检；当两条裂纹间距〈5mm时，裂纹漏磁场将产生叠加。数值模拟结果与试验数据较为一致，表明所用数值方法的有效性。文章所得结论对裂纹漏磁检测工程实践有重要的拳者意义。
|
| 关 键 词： | 裂纹 漏磁场 3D数值模拟 |
Numerical Simulation of Crack Magnetic Flux Leakage Field |
| |
| ZHENG Mu-Lin,LIU Fu-Jun,KONG Shuai,LING Zhang-Wei,QIAN Yue-Qiang,ZHAO Li-Wei,XIA Jun-Fang.Numerical Simulation of Crack Magnetic Flux Leakage Field[J].Nondestructive Testing,2011(9):43-48,53. |
| |
| Authors: | ZHENG Mu-Lin LIU Fu-Jun KONG Shuai LING Zhang-Wei QIAN Yue-Qiang ZHAO Li-Wei XIA Jun-Fang |
| |
| Affiliation: | ZHENG Mu-Lin,LIU Fu-Jun,KONG Shuai,LING Zhang-Wei,QIAN Yue-Qiang,ZHAO Li-Wei,XIA Jun-Fang (Zhcjiang Provincial Special Equipment Inspection and Research Institute,Hangzhou 310020,China) |
| |
| Abstract: | Magnetic flux leakage(MFL) testing is widely used to inspect and characterize defects in pipelines, storage tanks and other structures.In this paper,based on the Maxwell Equations,numerical simulation and experimental research of crack magnetic flux leakage field were carried out.The three-dimensional models of cracks were established,the influence of the generalized crack parameters to the magnetostatic MFL field,including depth, width,inclination angle and crack spacing,was discussed.The relationship betw... |
| |
| Keywords: | Crack Magnetic flux leakage field 3D numerical simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
