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Li C, Su J, Wang J, et al. Effects of symmetrical foundation on sound radiation from a submarine hull structure. J Acoust Soc Am. 2015;138(5):3195-201doi: 10.1121/1.4935403.
Li, C., Su, J., Wang, J., & Hua, H. (2015). Effects of symmetrical foundation on sound radiation from a submarine hull structure. The Journal of the Acoustical Society of America, 138(5), 3195-201. https://doi.org/10.1121/1.4935403
Li, Chenyang, et al. "Effects of symmetrical foundation on sound radiation from a submarine hull structure." The Journal of the Acoustical Society of America vol. 138,5 (2015): 3195-201. doi: https://doi.org/10.1121/1.4935403
Li C, Su J, Wang J, Hua H. Effects of symmetrical foundation on sound radiation from a submarine hull structure. J Acoust Soc Am. 2015 Nov;138(5):3195-201. doi: 10.1121/1.4935403. PMID: 26627793.
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J Acoust Soc Am. 2015 Nov;138(5):3195-201. doi: 10.1121/1.4935403.

Effects of symmetrical foundation on sound radiation from a submarine hull structure.

The Journal of the Acoustical Society of America

Chenyang Li, Jinpeng Su, Jian Wang, Hongxing Hua

Affiliations

  1. Institute of Vibration, Shock and Noise, State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai, 200240, China.

PMID: 26627793 DOI: 10.1121/1.4935403

Abstract

The effects of a passive noise control method for suppressing sound radiation from a submarine hull structure are investigated. The control method is realized by symmetrizing the foundation about the horizontal plane. The coupled finite element method and boundary element method are adopted to compute the acoustic characteristics of the submerged hull. From the numerical results, the symmetrical foundation has advantages in sound radiation reduction when the hull is subjected to the axial load, but has little influences in the vertical and transverse load cases. Using the modal decomposition technique, the contributions of each individual mode to the sound radiation are analyzed to reveal the mechanism of the control method.

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