Methods: The cyclindered-projectile weighed 0.845 kg was pushed under the pressure of 4 kg and 6 kg, and was impacted at the chin of 6 fresh goat head in this experiment.

• 方法 :采用颏部撞击法对 6个新鲜羊头颅以 4kg和 10kg的压力推动 0 .；84 5kg的圆柱形钢质抛射体进行撞击；对头颅加速度、双侧下颌骨体部、髁突颈部以及颞骨部的应变变化情况进行检测；应用新研制的生物撞击系统数据采集与分析软件对采集到的信号进行分析。