Study on Vibro-acoustic Characteristics of Laminated Composite Cylindrical Shell

Abstract

Composite cylindrical shells are widely used in various transportation vehicles. Its vibration and radiated sound characteristics have attracted the attention of many researchers. In this paper, the vibro-acoustic characteristics of laminated composite shell are investigated using wave approach method. The dynamic response of composite shell is carried out based on the Love`s thin shell theory and compared with results solved by FEM under unit driving force. It is found that the two results are in good agreement on isotropic steel and composite shell, respectively. Additional, the vibro-acoustics characteristic of composite shell are discussed when they are filled with water. When applied to the pipe system, the vibration acceleration level of composite cylindrical shell is the same level as isotopic steel pipe. This work could provide some guidance for the vibration control of composite cylindrical shell.