| 底排燃气二次扩张压力场研究 |
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| 引用本文： | 钱建平,都兴良,申屠德忠,沙志龙,李坚. 底排燃气二次扩张压力场研究[J]. 弹道学报, 2002, 14(4): 55-59,66 |
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| 作者姓名： | 钱建平 都兴良 申屠德忠 沙志龙 李坚 |
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| 作者单位： | 南京理工大学机械工程学院,南京,210094 |
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| 摘 要： | 提出了底排燃气压力不随外部压力变化即可改善底部弹射击精度又可提高关阻效果的二次扩张原理，建立了底排燃气二次扩张压力的计算模型，并通过采用二次扩张原理的新型底排装置与传统底排装置的对比试验，验证了新型底排装置结构实现的可行性。
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| 关 键 词： | 底部装置 底排燃气 二次扩张 减阻效果 |
STUDY ON THE SECONDARY EXPANSION PRESSURE FIELD OF THE BURNING GAS |
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| Abstract. STUDY ON THE SECONDARY EXPANSION PRESSURE FIELD OF THE BURNING GAS[J]. Journal of Ballistics, 2002, 14(4): 55-59,66 |
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| Authors: | Abstract |
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| Abstract: | A secondary expansive principle of the burning gas pressure vary without the external pressure is presented in this paper. It can be used not only to change the fire precision of the base bleed projectile,but also to improve the effect of reduction drag and expansion range. The calculating model of the secondary expansive pressure of the burning gas is constructed. By means of analysis of the experimental resuits,it has been confirmed that the new base bleed device can be designed, with the se condary expansive principle of the burning gas pressure. |
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| Keywords: | base bleed device burning gas secondary expansion reduction drag |
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