物理与工程

运用大学物理知识近似计算了不考虑厚度时平板简单轨道炮的出膛速度，根据得到的速度表达式分析了影响弹丸出膛速度的因素，而实际的平板轨道是有厚度的，在不考虑厚度的计算结果的基础上进一步计算，得到了考虑平板厚度时弹丸的出膛速度，通过图像法定性反映此时平板轨道的几何尺寸是如何影响弹丸的出膛速度的，并讨论了考虑厚度所带来的影响，可发现考虑或者增大平板厚度时，相当于稀释电流，会减小弹丸的出膛速度，最后还给出了提高弹丸出膛速度的方法。

This article first approximates the muzzle velocity of a simple railgun that does not consider the thickness through the knowledge of college physics, and analyzes the influencing factors of the muzzle velocity at this time through expressions. The actual plate track has thickness, so the thickness calculation is not considered.On the basis of the results, the muzzle velocity of the projectile when considering the thickness of the plate is further obtained. The factors affecting the muzzle velocity of the railgun at this time are given by the image method, And discuss the influence of thickness, It can be found that when considering or increasing the thickness of the plate, it is equivalent to the dilution current, which will reduce the muzzle velocity of the projectile. Finally, a method to increase the muzzle velocity of the projectile is given.