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Analysis of acoustic characteristics of sequential underwater explosion


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Analysis of acoustic characteristics of sequential underwater explosion
Pei Shanbao12Liu Rongzhong1Guo Rui1
(1.School of Mechanical Engineering,NUST,Nanjing 210094,China; 2.School of Mechanical Engineering,Anhui University of Technology,Maanshan 243000,China)
sequential underwater explosion acoustic characteristics acoustic source energy distribution underwater acoustic interference
O389; TB561
In order to study the underwater acoustic characteristics of the sequential underwater explosion,sequential underwater explosions with the interval time are tested and measured as the acoustic signal.According to the acoustic signal based on the obtained data,the attenuation and propagation characteristics of the shock wave of the sequential underwater explosion and the acoustic duration,sound pressure level and acoustic energy distribution of the signal are studied.Researches show that,the sequential underwater explosion can produce strong acoustic power,acoustic duration is the sum of interval time of the individual explosive unit,the signal frequency range is very wide,and the acoustic energy is mainly centralized in the frequency area under 24 kHz while the higher energy band is in the low frequency band.Results also show that the sequential underwater explosion is an acoustic source with the high power,the wide bandwidth and the long acoustic duration and it plays an important role in the underwater acoustic interference.


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Last Update: 2015-04-30