论文标题
球形磁铁非中心碰撞的数值模拟
Numerical simulation of non-central collisions of spherical magnets
论文作者
论文摘要
我们提出了两种球形霓虹灯铁磁体的非中心碰撞的计算模型，该模型被认为是角动量保护的一种证明。我们的程序使用有吸引力的偶极偶极力和排斥力接触力来解决磁铁的牛顿运动方程。我们确认角动量的保存，并研究整个相互作用的能量变化。使用偶极 - 偶极力的精确表达式（包括非中心项），我们正确地对最终旋转频率进行了建模，这是简单的幂律近似不可能的。
We present a computational model of non-central collisions of two spherical neodymium-iron-boron magnets, suggested as a demonstration of angular momentum conservation. Our program uses an attractive dipole-dipole force and a repulsive contact force to solve the Newtonian equations of motion for the magnets. We confirm the conservation of angular momentum and study the changes in energy throughout the interaction. Using the exact expression for the dipole-dipole force, including non-central terms, we correctly model the final rotational frequencies, which is not possible with a simple power-law approximation.
