弹头侵彻明胶的运动模型

A motion model for bullet penetrating gelatin

为探讨弹头在肌肉组织中的运动规律,以明胶作为组织模拟物,结合明胶力学性质,在区别攻角和偏角的情况下,建立同时考虑水平和垂直方向弹头侵彻明胶的二维运动模型。以7.62 mm普通弹和5.8mm普通弹为杀伤元,根据龙格-库塔法原理对运动模型进行数值计算。同时,对2种弹丸侵彻明胶实验数据进行了对比分析。分析结果表明,该二维运动模型能够准确合理的描述2种弹丸侵彻明胶的运动过程,具有一定通用性,可为弹药设计和战伤救治提供理论参考。

To research the motion of a bullet into the muscular tissue,the gelatin was used to simulate the muscular tissue.Based on the properties of the gelatin,a two-dimensional motion model was established for the projectile penetrating the gelatin in which reflecting the difference between attack angle and yaw angle.And the bullet motions in the horizontal and vertical directions were taken into account in the established motion model.Based on the Runge-Kutta method,the motion model was calculated by choosing the ordinary bullets with the diameters of 7.62 and 5.80 mm,respectively,as killer elements.The calculated results were compared with the corresponding experimental results.Comparisons show that the two-dimensional motion model can describe the motion of the bullets penetrating the gelatin accurately.And the motion model established is of a certain commonality and can provide a theoretical reference for the ammunition design and the wound treatment.