Prediction and Control of 32m Z-Propeller Tug Cabins Vibration and Noise

Abstract:

Based on statistical energy analysis method, the 32m z-propeller tug model was built by VA One software. The numerical simulation research of vibration and noise of 32m z-propeller tug cabin was carried out by VA One. In order to prove the numerical simulation validity, the simulation data was compared with that of the experiments, which shows that the vibration prediction error is lower than 15% and the noise prediction error is about 5 dB(A). Whats more, schemes of cabin noise reduction and the power plant vibration isolation were designed to make the vibration and noise levels meet the IMO and GB5980-2000 standards requirements. The sound absorption material was pasted on the bulkhead of cabins, and the average noise reduction level achieved to 7 dB(A). Then, the single-layer vibration isolation system was designed for the diesel engines, the average noise reduction level achieved to 5 dB(A). The simulations have some guiding values on the control of tug cabins vibration and noise.

• Periodical: Applied Mechanics and Materials (Volumes 397-400)
• Pages: 461-464
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.397-400.461
• Online since: September 2013
• Authors: Jun Fang, Hua Bing Wen, Zhen Zhen Liu, Jian Min Dong
• Keywords: Control, Sound Absorption and Noise Reduction, Statistical Energy Analysis (SEA), Vibration and Noise, Z-Propeller Tug

References

[1] Courtney B. Burroughs， Raymond W. Fischer， Fred R. Kern. An introduction to statistical energy analysis courtney b. burroughs[J]. J. Acoust. Soc. Am， 1997，101(4)：1779-1789.

[2] A. Le Bot. Derivation of statistical energy analysis from radiative exchanges[J]. Journal of Sound and Vibration, 2007(300): 763-779.

DOI: 10.1016/j.jsv.2006.08.033

[3] K. Renji P.S. Nair,S. Narayanan. Acoustic response behaviour of panels mounted withequipment and its prediction using statistical energy analysis[J]. Journal of Sound and Vibration, 2006(289): 851–870.

DOI: 10.1016/j.jsv.2005.02.041

[4] V. Cotonia R.S. Langley M.R.F. Kidner. Numerical and experimental validation of variance prediction in the statistical energy analysis of built-up systems[J]. Journal of Sound and Vibration, 2005(288): 701–728.

DOI: 10.1016/j.jsv.2005.07.012

[5] Tian Ran Lin, Andy C.C. Tan, Cheng Yan. Vibration of L-shaped plates under a deterministicforce or moment excitation: a case of statistical energy analysis application [J]. Journal of Sound and Vibration, 2011(330): 4780–4797.

DOI: 10.1016/j.jsv.2011.04.015