侵彻过载实测数据的滤波及弹体侵彻刚体过载的确定

Filtering of penetration deceleration data and determining of penetration deceleration on the rigid-body

摘要: 研究了对实测侵彻过载数据进行低通滤波以确定侵彻刚体过载的方法，提出了临界截止频率的概念，确定了临界截止频率和相对应的刚体过载。由此方法确定的最大刚体过载值与半经验方法预示的最大刚体过载值符合较好。
- 爆炸力学 /
- 临界截止频率 /
- 侵彻刚体过载 /
- 低通滤波 /
- 应力波 /
- 动态响应
Abstract: Determining of penetration deceleration on rigid-body by low-pass filtering of the measured penetration deceleration data is investigated. The concept of critical filter cut-off frequency is proposed. Critical filter cut-off frequency is acquired, penetration deceleration on rigid-body is determined. The penetration deceleration on rigid-body determined by the method presented in this paper shows a good agreement with calculation results of semi-empirical method based on cavity-expansion theory.
- mechanics of explosion /
- critical cut-off frequency /
- penetration deceleration on rigid-body /
- low-pass filter /
- stress wave /
- dynamic response