炮口振动与立靶散布特性试验研究

王宝元;许耀峰;周发明;衡刚;洪丽娜

振动与冲击 ›› 2014, Vol. 33 ›› Issue (8) : 83-87.

PDF(1438 KB)
PDF(1438 KB)
振动与冲击 ›› 2014, Vol. 33 ›› Issue (8) : 83-87.
论文

炮口振动与立靶散布特性试验研究

  • 王宝元,许耀峰,周发明,衡刚,洪丽娜
作者信息 +

Experimental study on muzzle vibration and vertical target dispersion

  • WANG Bao-yuan,XU Yao-feng, ZHOU Fa-ming, HENG Gang, HONG Li-na
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摘要

针对某高炮武器立靶散布中心明显发生侧偏现象,采用问题再现、原因分析、措施提出和效果验证等过程的试验研究方法,通过射击试验,测试炮箱浮动位移确定弹丸出炮口时间,用位移传感器得到炮口振动位移响应曲线,采用图像式立靶密集度测试系统得到立靶散布坐标,对炮口振动位移曲线进行频谱分析得到炮口振动固有频率,研究炮口位移响应影响立靶散布的规律。结果表明,由于火炮结构固有特性与射频不匹配,引起炮口共振,使得弹丸出炮口时刻出现在炮口振动位移最大位置,形成立靶散布中心侧偏现象。通过加强结构刚度,消除了炮口共振现象,立靶散布中心侧偏现象基本消失。

Abstract

In order to investigate the phenomena of obviously deflection in horizontal plane to the dispersion center of vertical target of antiaircraft gun, a series of experimental research methods are adopted, such as fault representation, reason analysis, method propose and results verification. In the firing experiments, the projectile exit time is obtained by testing the floating displacement of receiver, and the displacement curves of muzzle vibration are obtained by displacement transducers. Further more, the vertical target dispersion coordinates are detected by the graphics vertical target dispersion testing system, and the natural frequency of muzzle vibration is computed by frequency analysis of the displacement curves of muzzle vibration. Based on the works above, the law of vertical target dispersion influenced by muzzles vibration is summarized. It can be seen from the research results, because of the mismatch between nature frequency of gun structure and firing frequency, muzzle resonance is induced, so it follows that the projectile exit time is the same time when the muzzle vibration at it’s max. displacement. Therefore, the phenomenon of deflection to the dispersion center of vertical target is observed. In the following experiments, the phenomenon of muzzle resonance is eliminated by optimizing the structural stiffness, and it can be seen from the result that the phenomenon of deflection to the dispersion center of vertical target is basically disappeared.

关键词

高炮 / 炮口振动 / 立靶密集度 / 动态特性 / 试验研究

Key words

antiaircraft gun / muzzle vibration / vertical target dispersion / dynamic characteristic / experimental study

引用本文

导出引用
王宝元;许耀峰;周发明;衡刚;洪丽娜. 炮口振动与立靶散布特性试验研究[J]. 振动与冲击, 2014, 33(8): 83-87
WANG Bao-yuan;XU Yao-feng;ZHOU Fa-ming;HENG Gang;HONG Li-na. Experimental study on muzzle vibration and vertical target dispersion[J]. Journal of Vibration and Shock, 2014, 33(8): 83-87

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