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Citation:
　Guohe Jiang,Zhenzhen Liu,Yuanyuan Liu,et al.Contribution Ratio of Excitation Sources to the Underwater Acoustic Radiation of the X-BOW Polar Exploration Cruise Ship[J].Journal of Marine Science and Application,2025,(3):646-657.[doi:10.1007/s11804-024-00457-8]
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Contribution Ratio of Excitation Sources to the Underwater Acoustic Radiation of the X-BOW Polar Exploration Cruise Ship

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Title:
Contribution Ratio of Excitation Sources to the Underwater Acoustic Radiation of the X-BOW Polar Exploration Cruise Ship
Author(s):
Guohe Jiang;  Zhenzhen Liu;  Yuanyuan Liu;  Gang Wu
Affilations:
Author(s):
Guohe Jiang;  Zhenzhen Liu;  Yuanyuan Liu;  Gang Wu
Merchant Marine College, Shanghai Maritime University, Shanghai, 201306, China
Keywords:
X-BOW polar exploration cruise; Admittance matrix; Excited force; Underwater acoustic radiation; Contribute ratio
分类号:
-
DOI:
10.1007/s11804-024-00457-8
Abstract:
A finite element and boundary element model of the 100 m X-BOW polar exploration cruise ship is established. The vibrated velocity-excited force admittance matrix is calculated by frequency response analysis, and the vibrated velocity in the stern plate and main engine foundations is tested during the trial trip. Then, the excited force of the propeller and main engine is derived using the vibrated velocity and admittance matrix. Based on the excited force, the cabin-simulated vibrated velocity is compared with the tested vibrated velocity, and the tolerance is within the allowable scope in engineering. Loading the excited forces on the boundary element model, the distribution characteristics of sound level underwater are analyzed. Then, forces excited by the main engine and propeller are loaded on the model, and the contribution ratio of excitation sources to underwater acoustic radiation is analyzed. The result provides a reference for vibration assessment in the early stage and control in the late stage.

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Memo

Memo:
Received date:2023-6-6;Accepted date:2024-3-27。
Corresponding author:Yuanyuan Liu,E-mail:202130110123@stu.shmtu.edu.cn
Last Update: 2025-05-28