Study on underwater vibro-acoustic characteristics of carbon/glass hybrid composite laminates
Author:
Tang Yuhang1, Tang Yang2, Wang Xueren12, Zhou Tao1, Li Haichao12
Affiliation:
1. Naval Research Institute , Beijing , 100161 , People’s Republic of China 2. College of Shipbuilding Engineering, Harbin Engineering University , Harbin , 150001 , People’s Republic of China
Abstract
Abstract
At present, in addition to the high-strength alloy steel still used in the main load-bearing structure of foreign nuclear submarines, many composite materials have been used for non-load-bearing components, and the common laminate is the main form of the composite plate and shell. The composite laminate with a carbon/glass hybrid material has excellent structural mechanical properties. The vibration and acoustic radiation theories of the composite laminate were analytically deduced, the effect of ply parameters in hybrid shell plates was analyzed, and the influence of the hybrid ratio on the stiffness of shell plate was also investigated. Furthermore, according to the theoretical description, the typical carbon/glass hybrid shell plate was designed and the experimental comparison on the vibro-acoustic properties with a steel plate was carried out. The results showed that the mass and stiffness of a 12 mm carbon/glass hybrid shell plate were only 30 and 70% compared with an 8 mm steel plate. The mass and stiffness of a 15 mm carbon/glass hybrid shell plate were about 40 and 160% of that of an 8 mm steel plate, and its vibration and noise reduction performance was far superior to the steel plate. Therefore, the composite shell plate can achieve excellent acoustic performance while meeting the structural-functional indicators.
Publisher
Walter de Gruyter GmbH
Subject
Condensed Matter Physics,General Materials Science
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