Application of Bolt Vibration Isolation Structure in Torpedo Noise Control

CAO Hao; LIU Yanpeng; WEN Lihua; WANG Zhijie

doi:10.11993/j.issn.2096-3920.2023-0164

Volume 32 Issue 5

Oct 2024

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CAO Hao, LIU Yanpeng, WEN Lihua, WANG Zhijie. Application of Bolt Vibration Isolation Structure in Torpedo Noise Control[J]. Journal of Unmanned Undersea Systems, 2024, 32(5): 906-915. doi: 10.11993/j.issn.2096-3920.2023-0164

Citation:

CAO Hao, LIU Yanpeng, WEN Lihua, WANG Zhijie. Application of Bolt Vibration Isolation Structure in Torpedo Noise Control[J]. Journal of Unmanned Undersea Systems, 2024, 32(5): 906-915. doi: 10.11993/j.issn.2096-3920.2023-0164

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Application of Bolt Vibration Isolation Structure in Torpedo Noise Control

doi: 10.11993/j.issn.2096-3920.2023-0164

1.
College of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China
2.
Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China
3.
The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China

Received Date: 2023-12-16
Accepted Date: 2024-03-13
Rev Recd Date: 2024-03-07

Available Online: 2024-10-16

Abstract

Abstract

To further investigate the role of vibration isolation structure in torpedo noise control, in this paper, a dynamic characteristic identification bench of vibration isolation materials based on a beam model was established, and the elastic modulus and damping of poly-ether-ether-ketone materials were identified and verified. The finite element model of bolt vibration isolation structure was established, and the accuracy of the model was verified. The model was applied to the connection between the torpedo engine and the shell. Combined with the vibration isolation ring modeling theory and bolt vibration isolation structure, a torpedo-powered vibration isolation simulation model was established for the first time. The simulation results show that the vibration noise of torpedoes can be reduced by 3.64 dB by comprehensively using vibration isolation rings combined with bolt connections. The results provide strong theoretical support for torpedo vibration noise control.
- torpedo,
- vibration isolation,
- poly-ether-ether-ketone,
- dynamic characteristics,
- vibration noise control

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References(12)

References

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