弹丸外弹道相似性分析

ANALYSES OF SIMILARITY FOR FLIGHT TRAJECTORIES

探讨以小口径弹丸代替大口径弹丸进行外弹道测试的可能性及相关技术问题，近年来受到有关研究人员的重视．本文以旋转稳定弹丸为对象，讨论了外弹道诸元相似的可能性，相似性条件及实际应用中可能存在的一些问题，对今后外弹道测试技术中所遇到的一些具体问题，有一定参考和指导意义．

The similarity of flight trajectory for projectiles with different kind calibres is a problem which we often encounter in our research work, especially in the measuring techniques of flight trajectories. Taking a spinstabilized projectile as an example, a lot of thing heve been discussed in this paper, such as whether or not the flight trajectories to be similar, or how many flight parameters possibly to be similar, what conditions and ballistic errors of similarity for two projectiles there are in practice, etc. All of these will be useful for ballistic measurement in future.