| 爆轰波在阻尼管道中声吸收的实验研究 |
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| 引用本文： | 郭长铭,李剑.爆轰波在阻尼管道中声吸收的实验研究[J].爆炸与冲击,2000,20(4):289-295. |
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| 作者姓名： | 郭长铭 李剑 |
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| 作者单位： | 中国科学技术大学力学和机械工程系,安徽合肥 230026 |
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| 基金项目： | 国家自然科学基金;19372058; |
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| 摘 要： | 实验旨在研究气相爆轰波在阻尼管道 (管壁上衬有吸收材料 )中传播时的衰减现象。先是在光滑管壁的管道中产生稳定的具有胞格结构的爆轰波 ,然后使其通过专门设计的管壁上衬有吸收材料 (金属丝网或不锈钢纤维 )的阻尼段。利用高速摄影、压力传感器和烟迹技术等手段 ,记录和测试了阻尼段对几种混合气体爆轰波的传播速度、爆压及胞格结构产生的影响。实验分别在方管和圆管中进行。发现在某些条件下爆轰波可以被衰减成强爆燃。
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| 关 键 词： | 气相爆轰 强爆燃 阻尼段 吸收材料 爆轰波 阻尼管道 声吸收 |
| 文章编号： | 1001-1455(2000)04-0289-07 |
| 修稿时间： | 1999年9月1日 |
Experimental Investigation of Acoustic Absorption of Detonation by Absorbing Materials Lining Wall |
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| GUO Chang-ming,LI Jian.Experimental Investigation of Acoustic Absorption of Detonation by Absorbing Materials Lining Wall[J].Explosion and Shock Waves,2000,20(4):289-295. |
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| Authors: | GUO Chang-ming LI Jian |
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| Abstract: | The present experimental investigation attempts to understand the attenuation of detonation waves propagating through an absorbing material lining section.A stable cellular detonation wave was generated in tube section with smooth walls firstly.Then it would propagate through a specially designed section lining with wire mesh or steel wool.High speed spark schlieren,pressure transducers and smoked foil are used to record the structure of detonation wave front,the cellular structure and measure the pressure and speed of detonation.The experiment was carried out in a rectangular tube and a circular tube respectively.Under certain conditions,detonation can be attenuated and transformed into fast deflagration. |
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| Keywords: | gaseous detonation intensive combustion damping section absorbing material |
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