| 调幅交变磁场下圆柱形金属液内电磁力分布 |
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| 引用本文： | 雷作胜,任忠鸣,邓康.调幅交变磁场下圆柱形金属液内电磁力分布[J].中国有色金属学报,2002,12(Z1):30-35. |
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| 作者姓名： | 雷作胜 任忠鸣 邓康 |
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| 作者单位： | 上海大学,上海市钢铁冶金新技术应用开发重点实验室,上海,200072 |
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| 基金项目： | 国家自然科学基金资助项目(59734080,59974017) |
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| 摘 要： | 从Maxwell方程出发,推导并计算了连续交变磁场和调幅交变磁场作用下,圆柱形金属液中电磁力密度在半径方向上的分布及其随时间的变化情况.发现在连续及调幅磁场情况下,电磁力频率均以原输入电磁场频率的两倍变化,且在调幅磁场的线性上升段和下降段,电磁力幅值的变化近似为二次抛物线形,在调幅磁场的恒值段则与连续施加时一样.这为合理设计电磁连铸时的调幅磁场打下基础.
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| 关 键 词： | 调幅磁场 电磁连铸 电磁力 |
| 文章编号： | 1004-0609(2002)S1-0030-06 |
| 修稿时间： | 2001年10月9日 |
Distribution of electromagnetic force in cylinder shape liquid metal under amplitude modulated alternating magnetic field |
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| LEI Zuo sheng,REN Zhong ming,DENG Kang.Distribution of electromagnetic force in cylinder shape liquid metal under amplitude modulated alternating magnetic field[J].The Chinese Journal of Nonferrous Metals,2002,12(Z1):30-35. |
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| Authors: | LEI Zuo sheng REN Zhong ming DENG Kang |
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| Abstract: | The distribution of electromagnetic force along with radius and time in cylinder shape liquid metal under continuous and amplitude modulated alternating magnetic field was deduced and calculated based on Maxwell equation. It is found that the frequency of electromagnetic force is the twice of the magnetic field under both continuous and amplitude modulated condition, and its amplitude changes in a square parabola type while amplitude of magnetic field changes in a linear type. |
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| Keywords: | amplitude modulated magnetic field electromagnetic continuous casting electromagnetic force |
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