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论文:2016,Vol:34,Issue(5):829-836 |
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引用本文： |
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张立琛, 王英民, 郭拓. 基于磁偶极子的舰船轴频电磁场场源建模与试验验证[J]. 西北工业大学学报 |
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Zhang Lichen, Wang Yingmin, Guo Tuo. Modeling and Experiment Verification of the Ship Shaft-Rate Electromagnetic Field Based on Magnetic Dipole[J]. Northwestern polytechnical university |
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| 基于磁偶极子的舰船轴频电磁场场源建模与试验验证 |
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| 张立琛, 王英民, 郭拓 |
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| 西北工业大学 航海学院, 陕西 西安 710072 |
| 摘要: |
| 根据舰艇水下腐蚀相关轴频电磁场的产生机理，提出了以电流环与磁偶极子等效性为线索，对舰艇轴频电磁场场源进行磁偶极子建模，并给出电流环的3种近似形状及环面积的计算方法。在盐湖进行了验证试验，结果表明：将磁偶极子作为对舰艇水下轴频电磁信号进行估算的数学模型是可行的，与电偶极子相比，由于考虑海水为导电媒质的特性，因而与试验结果更加吻合；磁偶极子模型与试验结果的一致性，表明提出的环面积计算方法是可行的。磁偶极子模型在提高模型精度的前提下减少了计算量和实测数据量，因此更适合用于舰船腐蚀相关轴频电磁场的研究。分析所得典型结论为进一步的应用研究奠定了基础。 |
| 关键词:
轴频电磁场
电偶极子模型
磁偶极子模型
导电媒质
亥姆霍兹方程
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| Modeling and Experiment Verification of the Ship Shaft-Rate Electromagnetic Field Based on Magnetic Dipole |
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| Zhang Lichen, Wang Yingmin, Guo Tuo |
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| School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| According to the generation mechanism of the underwater corrosion relative shaft-rate electromagnetic (EM) field of ship, magnetic dipole modeling method with the equivalence of current loop and magnetic dipole as a clue is put forward about shaft-rate EM field source, simultaneously three kinds of the current loop shape and the calculation methods are given. In salt Lake, the verified experiment results show that:it is feasible that the magnetic dipole modeling is selected to estimate the underwater shaft-rate EM field of ship, comparing with the electric dipole modeling, as seawater is a conductive medium is considered, so the magnetic dipole is more consistent with the experimental results; the results show that the calculation method of the current loop area is feasible. Magnetic dipole modeling reduces the amount of calculation and the measured data at the premise of improving the accuracy, therefore it is more suitable for the research of corrosion relative shaft-rate EM field. The typical research results lay the foundation for the further application research. |
| Key words:
shaft rate electromagnetic field
electric dipole modeling
magnetic dipole modeling
conductive media
Helmholtz equation
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| 收稿日期: 2016-04-02
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金（N2014KA0064）与中央高校基本科研业务费专项基金（G2016KY0101）资助 |
| 通讯作者:
Email： |
| 作者简介: 张立琛(1988-),西北工业大学博士研究生,主要从事非声探测研究。
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| 作者相关文章 |
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| 张立琛 在本刊中的所有文章 |
| 王英民 在本刊中的所有文章 |
| 郭拓 在本刊中的所有文章 |
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