基于燃气生成速率比的发射药破碎程度定量表征方法
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摘要
为定量表征发射药的破碎程度,引入了燃气生成速率比的概念。通过理论推导,得出燃气生成速率比即为破碎发射装药与相应未破碎发射装药的燃烧表面积比。提出采用破碎发射药燃烧前期的燃气生成速率比的平均值来定量表征发射药的破碎程度。对标准发射药、大块发射药、小块发射药和粉末发射药进行了密闭爆发器试验,获得了不同发射药的p-t曲线,数据处理得到不同发射药破碎程度的量化值。结果表明,基于燃气生成速率比的发射药破碎程度定量表征方法是可行的。
To characterize fragmentation degree of propellant quantitatively, ratio of gas generation rates was introduced. It was deduced that the ratio of gas generation rates is correlated to the ratio of burning surface area of crushed propellant to that of the standard propellant. Fragmentation degree of propellant is characterized with the average value of the ratio of gas generation rates at the initial time. Closed-bomb test was used to test the standard propellant, massive propellant, bite-size propellant and powdered propellant, and the curves of the different propellants were obtained. The quantitative value of the fragmentation degree of propellant was obtained by processing the p-t curves. Results show that the quantitative characterization method for fragmentation degree of propellant based on the ratio of gas generation rates is feasible.
To characterize fragmentation degree of propellant quantitatively, ratio of gas generation rates was introduced. It was deduced that the ratio of gas generation rates is correlated to the ratio of burning surface area of crushed propellant to that of the standard propellant. Fragmentation degree of propellant is characterized with the average value of the ratio of gas generation rates at the initial time. Closed-bomb test was used to test the standard propellant, massive propellant, bite-size propellant and powdered propellant, and the curves of the different propellants were obtained. The quantitative value of the fragmentation degree of propellant was obtained by processing the p-t curves. Results show that the quantitative characterization method for fragmentation degree of propellant based on the ratio of gas generation rates is feasible.
引文
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[12] 王燕, 芮筱亭, 冯宾宾, 等.发射装药破碎程度表征方法研究[J].含能材料, 2015, 23(1): 57-61.WANG Y, RUI X T, FENG B B, at el. Characterization method for fragmentation degree of propellant charge[J].Chinese Journal of Energetic Materials, 2015, 23(1): 57-61.
[13] 张小兵, 金志明.枪炮内弹道学[M]. 北京: 北京理工大学出版社, 2014:13-17.ZHANG X B, JIN Z M.Interior ballistics of guns[M]. Beijing: Beijing Institute of Technology Press, 2014: 13-17.
[14] 邹瑞荣, 袁亚雄, 金志明, 等. 火炮点火初期膛内火药床运动规律研究[J]. 南京理工大学学报, 1994(2): 33-37.ZOU R R, YUAN Y X, JIN Z M, et al. A study of the movement of propellant at the initial ignition stage in guns[J]. Journal of Nanjing University of Science and Technology, 1994(2): 33-37.
[15] 叶敏.火炮膛内药床撞击与挤压的实验研究[D]. 南京: 南京理工大学, 2007.YE M. Experiment research of propellant impact and compression in the bore[D]. Nanjing: Nanjing University of Science and Technology, 2007.
[2] 芮筱亭, 贠来峰, 沙南生, 等. 发射装药发射安全性评定技术的研究进展[J]. 兵工学报, 2005, 26(5): 690-696.RUI X T, YUN L F, SHA N S, et al. Advance on launch safety for gun propellant charge[J]. Acta Armamentarii,2005, 26(5): 690-696.
[3] 陈言坤,甄建伟,武慧恩,等.粒状发射药动态破碎研究进展[J]. 爆破器材,2014,43(1):43-48.CHENG Y K, ZHEN J W, WU H E,et al.Research progress of dynamic fracture of granular propellant[J]. Explosive Materials,2014,43(1):43-48.
[4] 芮筱亭, 冯宾宾, 王国平. 发射装药发射安全性评估方法[J].兵工自动化, 2011, 30(5): 56-59,71.RUI X T, FENG B B, WANG G P. Evaluation method of launch safety of propellant charge[J]. Ordance Industry Automation,2011, 30(5): 56-59,71.
[5] 贠来峰. 发射装药发射安全性评定方法研究[D]. 南京: 南京理工大学, 2008.YUN L F. Study on the method of evaluating the launch safety for gun propellant charge[D]. Nanjing: Nanjing University of Science and Technology, 2008.
[6] 徐浩, 芮筱亭, 郁兆华, 等. 发射装药挤压应力与破碎规律研究[J]. 火炸药学报, 2012, 35(4): 61-64,68.XU H, RUI X T,YU Z H, et al. Study on extrusion stress and fracture law of propellant charge[J]. Chinese Journal of Explosives & Propellant, 2012, 35(4): 61-64,68.
[7] 冯宾宾, 芮筱亭, 徐浩, 等. 发射过程中某硝胺发射装药的动态挤压破碎情况[J].火炸药学报, 2012, 35(2): 70-73,85.FENG B B,RUI X T,XU H, et al. Dynamic compression fracture condition of one nitramine propellant charge during launch courage[J]. Chinese Journal of Explosives & Propellant, 2012, 35(2): 70-73,85.
[8] 王燕, 芮筱亭, 陈涛, 等.发射药床初始堆积形态对破碎程度的影响[J]. 火炸药学报, 2013, 36(4): 53-56,86. WANG Y, RUI X T, CHEN T, et al. Effect of initial packing pattern on fragmentation degree of propellant beds[J]. Chinese Journal of Explosives & Propellant, 2013, 36(4): 53-56,86.
[9] 姜世平, 芮筱亭, 洪俊, 等. 发射药床冲击破碎过程的数值模拟[J]. 固体力学学报, 2011, 32(4): 419-425. JIANG S P, RUI X T, HONG J, et al. Simulation on fragmentation process of propellant bed under impact load[J]. Chinese Journal of Solid Mechanics, 2011, 32(4): 419-425.
[10] 金志明, 翁春生. 火炮装药设计安全学[M]. 北京: 国防工业出版社, 2001:75-78.JIN Z M, WENG C S. Charge design safety of guns[M]. Beijing: National Defense Industry Press, 2001:75-78.
[11] 陈涛, 芮筱亭, 贠来峰. 发射药破碎程度描述方法[J]. 弹道学报, 2008, 20(2): 99-102.CHEN T, RUI X T, YUN L F.Method of describing fracture degree of propellant[J]. Journal of Ballistics, 2008, 20(2): 99-102.
[12] 王燕, 芮筱亭, 冯宾宾, 等.发射装药破碎程度表征方法研究[J].含能材料, 2015, 23(1): 57-61.WANG Y, RUI X T, FENG B B, at el. Characterization method for fragmentation degree of propellant charge[J].Chinese Journal of Energetic Materials, 2015, 23(1): 57-61.
[13] 张小兵, 金志明.枪炮内弹道学[M]. 北京: 北京理工大学出版社, 2014:13-17.ZHANG X B, JIN Z M.Interior ballistics of guns[M]. Beijing: Beijing Institute of Technology Press, 2014: 13-17.
[14] 邹瑞荣, 袁亚雄, 金志明, 等. 火炮点火初期膛内火药床运动规律研究[J]. 南京理工大学学报, 1994(2): 33-37.ZOU R R, YUAN Y X, JIN Z M, et al. A study of the movement of propellant at the initial ignition stage in guns[J]. Journal of Nanjing University of Science and Technology, 1994(2): 33-37.
[15] 叶敏.火炮膛内药床撞击与挤压的实验研究[D]. 南京: 南京理工大学, 2007.YE M. Experiment research of propellant impact and compression in the bore[D]. Nanjing: Nanjing University of Science and Technology, 2007.