The shape of a projectile greatly affects its velocity when fired from a coil gun. A magnetic field is generated when the capacitor is discharged and current flows through a solenoid coil, and the magnitude of the resulting magnetic force depends on the projectile shape. A projectile has different amounts of drag depending on its shape. We analyzed the magnetic force and drag coefficient of a coil gun projectile according to its shape. The shape of the projectile was optimally designed to obtain high magnetic force and a small drag coefficient. ANSYS CFD was used to analyze the drag coefficient, and the electromagnetic simulation program Maxwell was used to analyze the magnetic force. The projectile design was optimized carried out using the commercial PIDO tool PIAnO. The optimal projectile was fabricated, and an experiment was conducted to measure the final velocity and verify the performance.

从线圈枪发射时，弹丸的形状会极大地影响其速度。当电容器放电并且电流流经电磁线圈时会产生磁场，并且所产生的磁力的大小取决于弹丸的形状。弹丸根据其形状而具有不同的阻力。我们根据弹丸的形状分析了弹丸的磁力和阻力系数。优化设计了弹丸的形状，以获得高磁力和小阻力系数。ANSYS CFD用于分析阻力系数，电磁仿真程序Maxwell用于分析磁力。使用商用PIDO工具PIAnO对射弹设计进行了优化。最佳弹丸被制造出来，