Research on Metal-Rubber Composite Damping Steel Plate Application in Acoustic Bridge for Double Cylindrical Shell

Abstract:

In order to reduce the low-frequency line spectrum of double cylindrical shell, the research was done to apply composite damping steel plate in acoustic bridge between two shells. By suppressing vibration energy transmission along acoustic bridge, two types of composite damping rib-plate were designed with the resistance increasing technology based on the principle of damping vibration attenuation. Then the vibro-acoustic characteristics of double cylindrical shell were analyzed through numerical calculations, considering original and improved acoustic bridge. The results shows that: composite damping steel plate applying in acoustic bridge can reduce sound radiation of double cylindrical shell effectively, properly increasing damping between composite plates is beneficial for vibration and noise reduction. These research results could be a reference for submarine acoustic stealth design.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 3505-3510
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.3505
• Online since: March 2012
• Authors: Qi Qiang Xia, Zhi Jian Chen, Jie Gong, Li Jun Zhang
• Keywords: Acoustic Bridge Design, Composite Damping Steel Plate, Double Cylindrical Shell, Noise Reduction, Structure Impedance Increasing, Vibration

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