Prediction for Sound Radiated Power from Submerged Double Cylindrical Shells Based on Measuring Vibration of Inner Shell

Abstract:

A prediction method for the sound radiated power from submerged double cylindrical shells based on measuring vibration of inner shell is presented. The prediction model of submerged double cylindrical shells is established by using modal superposition method. Applied the ratio of the measuring value and theoretical value of the acceleration in one point or mean square velocity of inner shell, and combined with the theoretical value of the sound radiated power, the predicted value of the sound radiated power is derived. The corresponding experiment is carried out in lake. And then the measuring power curve is compared with the predicted power curve based on this method. The result shows that they have good agreement and the average prediction error is less than 2dB.

• Periodical: Advanced Materials Research (Volumes 779-780)
• Pages: 602-606
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.779-780.602
• Online since: September 2013
• Authors: Chao Zhang, De Jiang Shang, Qi Li
• Keywords: Double Cylindrical Shells, Measurement, Prediction, Sound Radiated Power

References

[1] S. M. Hasheminejad, H. Mousavi-akbarzadeh, Vibroacoustic response of an eccentric hollow cylinder, Journal of Sound and Vibration, 331 (2012) 3791-3808.

DOI: 10.1016/j.jsv.2012.04.002

[2] X. Cao, H. Hua, C. Ma, Acoustic radiation from shear deformable stiffened laminated cylindrical shells, Journal of Sound and Vibration, 331 (2012) 651-670.

DOI: 10.1016/j.jsv.2011.10.006

[3] J. Yan, T.Y. Li, J.X. Liu, X. Zhu, Space harmonic analysis of sound radiation from a submerged periodic ring-stiffened cylindrical shell, Applied Acoustics, 67 (2006) 743-755.

DOI: 10.1016/j.apacoust.2005.11.008

[4] J. V. de Loock, et al, Acoustic radiation of a submerged cylindrical shell in low frequency, J. Acoust. Soc. Am., 2013, 133(1) EL26-EL32.

DOI: 10.1121/1.4769398

[5] Chen Mei-xia, et al, Analysis of the vibration and sound radiation similarity between inner and outer shells of double cylindrical shell, Journal of Ship Mechanics, 2012, 16(11) 1329-1336.

[6] Chen Mei-xia, et al, Analytical solution of radiation sound pressure of double cylindrical shells in fluid medium, Applied Mathematics and Mechanics, 2002, 23(4) 463-470.

DOI: 10.1007/bf02436215

[7] He Wei-ping, et al, Calculation of acoustic power radiated from a cylindrical shell based on a limited number of measurements, Journal of Ship Mechanics, 2012, 16(10) 1204-1211.

[8] Jin Guangwen, He Lin, Calculation of noises from submerged cylindrical shell structure by radiation factor, ACTA ACOUSTICA, 2010, 35(4) 427-433.

[9] Bai Zhen-guo, Yu Meng-sa, Sound radiation of finite composite cylindrical shells with muli-layers acoustic coating, Journal of Ship Mechanics, 2007, 11(5) 788-797.

[10] Gao Yan, Li Bing, Dai Jiang, Investigation on underwater radiation sound power measurements from cylindrical shells model, Journal of Ship Mechanics, 2010, 14(10) 1189-1194.