| 一种弱磁作用下铁磁物体感应磁场的计算方法 |
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| 引用本文： | 周国华,肖昌汉,闫辉,高俊吉.一种弱磁作用下铁磁物体感应磁场的计算方法[J].哈尔滨工程大学学报,2009,30(1). |
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| 作者姓名： | 周国华 肖昌汉 闫辉 高俊吉 |
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| 作者单位： | 海军工程大学,电气与信息工程学院,湖北武汉,430033 |
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| 摘 要： | 铁磁物体感应磁场的数值计算研究在舰艇消磁等领域具有重要的应用价值.针对弱磁作用下铁磁物体感应磁场计算的问题,根据均匀磁化体的特点,建立了基于单元表面积分的铁磁物体感应磁场模型.为了解决工程中铁磁物体磁化率难以确定的困难,从弱磁作用下铁磁物体的磁化特点出发,利用磁场垂直分量测最值建立了以单元磁化率为未知量的数学模型,并运用寻优能力强、速度快、易于求解多维优化问题的微粒群算法对磁化率数学模型进行了优化求解,进而用单元表面磁场积分法解算了铁磁物体的感应磁场.通过钢板计算实例中磁场测昔值和计算值的比较,表明该方法计算精度较高,能够较好地反映弱磁作用下铁磁物体的感应磁场分布,有一定工程实用价值.
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| 关 键 词： | 感应磁场 表面积分 微粒群算法 舰船消磁 |
A method to calculate the induced magnetic field of ferromagnetic objects in a weak magnetic field |
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| ZHOU Guo-hua,XIAO Chang-han,YAN Hui,GAO Jun-ji.A method to calculate the induced magnetic field of ferromagnetic objects in a weak magnetic field[J].Journal of Harbin Engineering University,2009,30(1). |
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| Authors: | ZHOU Guo-hua XIAO Chang-han YAN Hui GAO Jun-ji |
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| Affiliation: | College of Electrical and Information Engineering;Naval University of Engineering;Wuhan 430033;China |
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| Abstract: | It is very useful to have accurate induced magnetic field calculations for ferromagnetic objects when degaussing ships.The influence of induced magnetic fields in ferromagnetic objects in a weak magnetic field was studied for this paper.Based on the magnetization property of a uniformly magnetized body,a magnetic field model based on the element surface integral was developed.In order to remove difficulties in the calculation of the magnetic susceptibility of ferromagnetic objects in engineering,an optimiza... |
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| Keywords: | induced magnetic field surface integral particle swarm optimization ship degaussing |
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