金属导爆索的爆炸水声特性

为了研究金属导爆索的水声特性,进行了水下爆炸压力测试和气泡脉动实验,获得了金属导爆索水下爆炸冲击波传播和衰减特性及气泡脉动特性.研究了金属导爆索水下爆炸的声压级、声持续时间、混响效应和功率谱特性,结果表明:(1)金属导爆索水下爆炸声压级较高,具有很强的声功率；(2)金属导爆索水下爆炸后产生的气泡脉动和随后产生的大量小气...

Underwater sound characteristics of metal-clad detonating cords

Underwater explosion pressure test and gas bubble pulsation experiment were conducted to obtain the transmission and attenuation properties as well as the gas bubble pulsation properties for the underwater explosion shockwaves of the metal-clad detonating cords.And some underwater explosion performances for the metal-clad detonating cords were explored such as the sound pressure level,sound duration,reverberation effect,and power spectrum.Results show that the metal-clad detonating cords display a high level of sound pressure and sound power;that the gas bubble pulsations following the underwater explosion of the metal-clad detonating cords and the ensuing huge amount of small bubbles will persist for a long time,which can observably increase the reverberation effect and sound duration of the underwater explosion;and that the underwater explosion sound of the metal-clad detonating cords covers a wide range of frequencies,the energy in each of which is powerful,and the energy in the low frequency range is the highest.