Numerical and experimental study of functioning of typical linear pyrotechnic separation device

被引：1
|
作者：
Wang G. [1 ]
Wang X. [2 ]
Wen Q. [1 ]
Wang Y. [1 ]
机构：
[1] School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing
[2] China Academy of Launch Vehicle Technology, Beijing
来源：
Guofang Keji Daxue Xuebao/Journal of National University of Defense Technology | 2022年 / 44卷 / 06期
关键词：
arbitrary Lagrangian-Eulerian method; linear pyrotechnic separation device; numerical simulation; photonic Doppler velocimetry; sensitivity analysis;
D O I：
10.11887/j.cn.202206006
中图分类号：
学科分类号：
摘要：
At present, the optimal design of linear pyrotechnic separation device mostly depends on experiments, which is not only costly but also low efficient. Herein, a numerical model was developed with arbitrary Lagrangian-Eulerian method for a typical linear pyrotechnic separation device. The numerical model was validated via pyrotechnic separation experiments and photonic Doppler velocimetry, and it was found to have reasonable accuracy. The model was applied to study the mechanical mechanism of the transient separation process of the pyrotechnic separation device. The influence of multiple factors on the critical characteristic parameters was also studied quantitatively, such as effective plastic strain of the key areas of the device. It is found that the linear density of the detonating cord and the bottom radius of the v-notch of the separation plate have significant influence on the separation process. In addition, the material of the protection plate, the angle of the v-notch and the dimension of the rectangular notch of the separation plate also have a certain influence on the separation process, however, the influence is less than that exerted by the linear density of the detonating cord and the bottom radius of the v-notch. The study can provide a foundation for optimal design of the typical linear pyrotechnic separation device. © 2022 National University of Defense Technology. All rights reserved.
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页码：38 / 50
页数：12
相关论文
共 12 条
  • [1] HE C Q, YAN N, YE Y K., Study of stage separation device for missile[J], Spacecraft Recovery ＆ Remote Sensing, 30, 3, pp. 70-77, (2009)
  • [2] DU L F, MA Y H, CHEN H N, Et al., The simulation of action procedure of explosive bolt[J], Initiators ＆ Pyrotechnics, 3, pp. 29-32, (2015)
  • [3] WANG Z W, WU H W, YANG K, Et al., Research on the dynamics simulation of the explosive bolt separation[J], Missiles and Space Vehicles, 1, pp. 111-115, (2018)
  • [4] WANG J P, MAO Y J, LYU J, Et al., Main influence factors on pyrotechnic-shock response of explosive bolts[J], Journal of Vibration and Shock, 38, 13, pp. 42-49, (2019)
  • [5] LEE J, HAN J H, LEE Y, Et al., A parametric study of ridge-cut explosive bolts using hydrocodes[J], International Journal of Aeronautical and Space Sciences, 16, 1, pp. 50-63, (2015)
  • [6] LEE J, HWANG D H, JANG J K, Et al., Pyroshock measurement and characteristic analysis of explosive bolt and pyrotechnic initiator[J], Transactions of the Korean Society for Noise and Vibration Engineering, 27, 2, pp. 213-220, (2017)
  • [7] SUN J, YANG Z G., The simulation and optimization of the explosive separation of an expanding tube separation device [C], Proceedings of Transactions of 9th National Explosion and Safety Technology Conference, pp. 140-143, (2006)
  • [8] SONG B Y, HU Z X, SUN J, Et al., On the measurement of the separation time of expanding tube separation device[J], Journal of Experimental Mechanics, 30, 2, pp. 151-156, (2015)
  • [9] SONG B Y, WU H L, WANG S, Et al., Design parameter sensitivity analysis of super * zip separation devices, Transactions of Beijing Institute of Technology, 33, 2, pp. 76-79, (2013)
  • [10] FENG L N, LI D, TIAN J D, Et al., Simulation and tests for expansion performance of a flat tube[J], Journal of Vibration and Shock, 37, 23, pp. 149-156, (2018)
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