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Proceedings Paper

Research on characteristics of radiated noise of large cargo ship in shallow water
Author(s): Yongdong Liu; Liang Zhang
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Paper Abstract

With the rapid development of the shipping industry, the number of the world’s ship is gradually increasing. The characteristics of the radiated noise of the ship are also of concern. Since the noise source characteristics of multichannel interference, the surface wave and the sea temperature microstructure and other reasons, the sound signal received in the time-frequency domain has varying characteristics. The signal of the radiated noise of the large cargo ship JOCHOH from horizontal hydrophone array in some shallow water of China is processed and analyzed in the summer of 2015, and the results show that a large cargo ship JOCHOH has a number of noise sources in the direction of the ship’s bow and stern lines, such as host, auxiliary and propellers. The radiating sound waves generated by these sources do not meet the spherical wave law at lower frequency in the ocean, and its radiated noise has inherent spatial distribution, the variation characteristics of the radiated noise the large cargo ship in time and frequency domain are given. The research method and results are of particular importance.

Paper Details

Date Published: 23 January 2017
PDF: 5 pages
Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103223D (23 January 2017); doi: 10.1117/12.2265479
Show Author Affiliations
Yongdong Liu, Science and Technology on Underwater Test and Control Lab. (China)
Liang Zhang, Science and Technology on Underwater Test and Control Lab. (China)


Published in SPIE Proceedings Vol. 10322:
Seventh International Conference on Electronics and Information Engineering
Xiyuan Chen, Editor(s)

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