Pekeris水声波导环境中水面和水下状态船体辐射噪声的差异分析

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摘要本文基于一个实尺度的单层壳水下船舶结构声辐射计算模型，加载典型的船舶机械激励力。采用Pekeris水声波导环境中的船舶三维声弹性分析方法，计算该模型在极浅水环境水面状态下以及浅海环境水下状态下的辐射噪声。通过数值结果的定量分析，揭示了极浅水环境水面状态下船体水下辐射噪声存在的一些特点，同时，说明了极浅水环境水面状态与浅海环境水下状态下船体辐射噪声的差异。

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	邹明松1
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	3 刘树晓1
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关键词 ：船舶, 声弹性理论, Pekeris水声波导, 声辐射

Abstract：Based on the 1∶1 computational model of a single-shell underwater ship, typical mechanical exciting loads were applied and the radiated noise was obtained by using the sono-elastic method in Pekeris hydro-acoustic waveguide. The radiated noise of the model was analyzed both under the water-surface condition in extremely shallow water environment and under the underwater condition in shallow water environment. The characteristics of the radiated noise under the water-surface condition in extremely shallow water environment were analyzed quantitatively. Besides, the difference of the characteristics of the radiated noise under these two conditions was investigated.

Key words： Ships Sono-elasticity Pekeris hydro-acoustic waveguide Acoustic radiation

收稿日期: 2018-04-16 出版日期: 2019-11-15

引用本文:

邹明松1,2,3 刘树晓1,2. Pekeris水声波导环境中水面和水下状态船体辐射噪声的差异分析[J]. 振动与冲击, 2019, 38(22): 204-209.
ZOU Mingsong1,2,3 LIU Shuxiao1,2. Comparative study on the acoustic radiation of a ship under water-surface and underwater conditions in Pekeris acoustic waveguide. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(22): 204-209.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I22/204

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