| 线圈炮弹丸受力的两种表示及等价性 |
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| 引用本文： | 刘彦鹏,杨丽佳,欧阳建明. 线圈炮弹丸受力的两种表示及等价性[J]. 大学物理, 2009, 28(9) |
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| 作者姓名： | 刘彦鹏 杨丽佳 欧阳建明 |
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| 作者单位： | 国防科技大学,理学院,物理系,湖南,长沙,410073 |
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| 摘 要： | 从物理学基本原理出发,以线圈炮的简单模型为例,导出了计算弹丸所受磁场力的两种表示.证明了它们的等价性,并把结论推广到一般线圈炮的情形.
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| 关 键 词： | 线圈炮 电感梯度 安培力 等价性 |
Two kinds of expressions and their equivalence of the force on the projectile in coilguns |
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| LIU Yan-peng,YANG Li-jia,OUYANG Jian-ming. Two kinds of expressions and their equivalence of the force on the projectile in coilguns[J]. College Physics, 2009, 28(9) |
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| Authors: | LIU Yan-peng YANG Li-jia OUYANG Jian-ming |
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| Affiliation: | Department of Physics;National University of Defense Technology;Changsha;Hunan 410073;China |
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| Abstract: | There are expressions of two kinds about how to calculate the magnetic force accelerating the projectile in coilguns. However, the inductance gradient expression had been quoted incorrectly by many researchers. It is necessary to demonstrate them correctly and prove their equivalent relation. In this paper, these problems are solved perfectly on the base of several physics principles. |
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| Keywords: | coilgun inductance gradient Ampere force equivalence |
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