Simulation and Analysis of the Radiated Acoustic Field Measurement of the Underwater Vehicle Based on NAH

Abstract:

we use the NAH method for the simulation and analysis of sound power level and source level with the plan measuring surface under the same distance and size. The sound intensity integral method, the mean square sound pressure method and the NAH reversal method have been adopted in this paper. We also compare the sound power level between the plan measuring surface and the cylinder measuring surface, thus helps verifying the accuracy of the measurement of the radiated acoustic field based on the method of NAH. The conclusion we have drawn here can also provides dependable experimental basis for the choosing of measuring surfaces

• Periodical: Advanced Materials Research (Volumes 503-504)
• Pages: 1575-1579
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.503-504.1575
• Online since: April 2012
• Authors: Shao Chun Ding, Lin Na Zhou, Jing Jun Lou, Shi Jian Zhu
• Keywords: NAH, Sound Power Level, Source Level, Underwater Vehicle

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