爆炸冲击波峰值区域频率分布特性研究
Research on Frequency Distribution of Peak Area of Blast Shock Wave

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.
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