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http://dx.doi.org/10.5050/KSNVE.2014.24.11.907

A Analysis on the Estimation Method of the 3D Underwater Radiation Noise Pattern of Cylindrical Structure with the Underwater Experiments  

Yi, Jongju (Agency for Defense Development)
Kang, Myunghwan (Agency for Defense Development)
Han, Seungjin (Agency for Defense Development)
Jeong, Hyunjoo (Agency for Defense Development)
Oh, Junseok (Agency for Defense Development)
Bae, Sooryong (Agency for Defense Development)
Jung, Woojin (Agency for Defense Development)
Seo, Young Soo (Agency for Defense Development)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.24, no.11, 2014 , pp. 907-918 More about this Journal
Abstract
In this study for the prediction of 3D underwater radiated noise pattern, a comparison between the proposed method(DHIE, Discrete Helmholtz Integral Equation) and the 3D underwater radiated noise calculation results using the measurement of near-field acoustic pressure data is performed. The near-field acoustic pressure in water is measured for the calculation of the far-field radiated noise pattern and the far-field acoustic power. Also the vibration field of the underwater structure is measured in simultaneously. Using the total far-field acoustic power and the vibration field on the surface of the structure, the proposed method(DHIE) can predict the underwater radiated noise pattern of the far-field The predicted results show the reasonable agreement within about 5dB comparing with the experiment result.
Keywords
Underwater Far-field Prediction; Velocity Cross-spectrum;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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