YUAN Li-dong, WANG Zhi-jun, WU Guo-dong
(College of Mechatronic Engineering, North University of China, Taiyuan 030051, China)
Abstract： This article uses nonlinear dynamics analysis software AUTODYN-2D to establish an interior ballistic model of central blast tube cluster munitions dispersion. The interior ballistic process of the central blast tube cluster munitions dispersion was simulated. The state of submunitions dispersion was obtained as interior ballistic conditions changed. The effect of shell stress groove on shell opening was discussed. The shell with stree groove is helpful for submunitions dispensing effectively and uniformly. The effect of liner material on submunitions dispersing was discussed. It can be found that foam liner can reduce the interior ballistic pressure, increase the pressure action time, reduce the acceleration of the submunitions and increase the submunitions dispersing velocity. These results provide some reference for the theory and experiment research of the central blast tube cluster munitions dispersion.
Key words： cluster munitions; interior ballistics; AUTODYN
CLD number： TJ760 Document code： A
Article ID： 1674-8042（2015）04-0336-06 doi： 10.3969/j.issn.1674-8042.2015.04.006
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内弹道因素对中心爆管子母弹抛撒的影响
袁利东， 王志军， 吴国东
（中北大学 机电工程学院， 山西 太原 030051）
摘要:利用非线性动力学分析软件AUTODYN-2D建立了子母弹中心爆管抛撒内弹道模型， 并对该中心爆管子母弹抛撒内弹道过程进行了数值模拟， 得到了在不同内弹道条件下子弹抛撒情况。 定性分析了壳体应力槽对壳体的影响， 相对于没有应力槽的壳体， 带有应力槽的壳体可以降低子弹所受压力， 有助于子弹均匀有效抛撒。 探讨了衬管材料对子弹抛撒的影响， 半硬质聚氨酯泡沫塑料、 尼龙塑料可以缓冲内弹道压力， 增加压力作用时间， 从而降低子弹过载， 提高子弹抛撒速度。 仿真结果为中心爆管子母弹抛撒理论和实验研究提供了依据。
关键词:子母弹； 内弹道； AUTODYN
引用格式：YUAN Li-dong, WANG Zhi-jun, WU Guo-dong. Effects of interior ballistic factors on dispersion of central blast tube cluster munitions. Journal of Measurement Science and Instrumentation, 2015, 6(4)： 336-341. ［doi： 10.3969／j.issn.1674-8042.2015.04.006］
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