| 爆炸冲击波峰值区域频率分布特性研究 |
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| 引用本文： | 李向荣,马翊闻,李帅,王国辉,杨建兵.爆炸冲击波峰值区域频率分布特性研究[J].北京理工大学学报,2019,39(2):125-130. |
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| 作者姓名： | 李向荣 马翊闻 李帅 王国辉 杨建兵 |
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| 作者单位： | 陆军装甲兵学院兵器与控制系,北京,100072;中国人民解放军78465部队,四川,广元628000;陆军装甲兵学院教保处,北京,100072 |
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| 基金项目： | 国家自然科学基金资助项目（1150020813） |
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| 摘 要： | 针对轻型装甲车辆防爆炸冲击波能力较弱的问题，应用小波分析和时域分析相结合的方法对爆炸冲击波峰值区域频率分布特征性进行了研究，对实测信号进行时频分析.结果表明，爆炸冲击波所包含的频率范围较宽，噪声频率主要集中在高频部分，而冲击波峰值区域频率主要集中在低频部分，与峰值超压呈指数型增长趋势.
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| 关 键 词： | 爆炸冲击波 小波分析 时域分析 冲击波频谱 |
| 收稿时间： | 2018/4/10 0:00:00 |
Research on Frequency Distribution of Peak Area of Blast Shock Wave |
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| LI Xiang-rong,MA Yi-wen,LI Shuai,WANG Guo-hui and YANG Jian-bing.Research on Frequency Distribution of Peak Area of Blast Shock Wave[J].Journal of Beijing Institute of Technology(Natural Science Edition),2019,39(2):125-130. |
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| Authors: | LI Xiang-rong MA Yi-wen LI Shuai WANG Guo-hui and YANG Jian-bing |
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| Institution: | 1. Department of Arms Engineering, Academy of Armored Force Engineering, Beijing 100072, China;2. Unit 78465 of the PLA, Guangyuan, Sichuan 628000, China;3. Teaching Support Office, Army Academy of Armored Force, Beijing 100072, China |
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| Abstract: | To solve the problem that armored vehicles'' anti-blast shock performance is not strong, wavelet analysis was used together with time domain analysis to study the frequency distribution characteristics of the peak area of blast shock wave, and analyze the frequency of measured signal. The results show that the shock wave contains a wide frequency range; the noise frequency is mainly concentrated in the high frequency part; the peak frequency of the shock wave is mainly concentrated in the low frequency part, and reveals a exponential growth trend with the peak overpressure. |
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| Keywords: | blast shock wave wavelet analysis time domain analysis shock wave spectral distribution |
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