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course:interesting_problems:2023:topic8:start [2022/09/05 18:06] 黄腾 修正笔误 |
course:interesting_problems:2023:topic8:start [2022/11/13 11:05] (当前版本) liqiuqi |
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| * Take a thick plate of non-magnetic material and fix a neodymium magnet on top of it. Suspend a magnetic rod (which can be assembled from cylindrical neodymium magnets) underneath it. Deflect the rod so that it touches the plate only with highest edge and release it. Study the motion of such a pendulum under various conditions. | * Take a thick plate of non-magnetic material and fix a neodymium magnet on top of it. Suspend a magnetic rod (which can be assembled from cylindrical neodymium magnets) underneath it. Deflect the rod so that it touches the plate only with highest edge and release it. Study the motion of such a pendulum under various conditions. | ||
| * 取一非磁性材料的厚板并在其上固定一个钕磁铁。在板下方悬挂一根磁性棒(可由一系列圆柱形钕磁铁组装而成)。偏转此棒使其只有顶部的边缘与板接触，然后释放它。研究这个摆在不同条件下的运动。 | * 取一非磁性材料的厚板并在其上固定一个钕磁铁。在板下方悬挂一根磁性棒(可由一系列圆柱形钕磁铁组装而成)。偏转此棒使其只有顶部的边缘与板接触，然后释放它。研究这个摆在不同条件下的运动。 | ||
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| + | ==== 课题组成员 ==== | ||
| + | 指导老师：苏卫锋 | ||
| + | |||
| + | 助教：罗熠晨 | ||
| + | |||
| + | 张世范 冯靖 李秋奇 | ||
| + | |||
| + | ==== 参考文献 ==== | ||
| + | • Wikipedia (2022). https://en.wikipedia.org/wiki/Eddy_current | ||
| + | |||
| + | • Wikipedia (2022). https://en.wikipedia.org/wiki/Magnetoresistance | ||
| + | |||
| + | • Wikipedia (2022). https://en.wikipedia.org/wiki/Hall_effect | ||
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| + | • China Ferrite And Neodymium Magnet Manufacturer (Supplier) – Courage Magnet. https://www.dgcourage.com/xinwen/hyxw/318.html | ||
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| + | • D. Rantidev, Are Rare Earth Magnets Conductive? https://keepthatshort.com/are-rare-earth-magnets-conductive | ||
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| + | • Caps, H., Dorbolo, S., Ponte, S., Croisier, H., & Vandewalle, N. Rolling and slipping motion of Euler’s disk. Physical Review E, 69(5), (2004). | ||
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| + | • Stanislavsky, A. A., & Weron, K. Nonlinear oscillations in the rolling motion of Euler’s disk. Physica D: Nonlinear Phenomena, 156(3-4), 247–259, (2001). | ||