Sound Transmission into a Laminated Composite Cylindrical Shell
In the context of the transmission of airborne noise into an aircraft fuselage, a mathematical model is presented for the transmission of an oblique plane sound wave into a laminated composite circular cylindrical shell. Numerical results are obtained for geometry typical of a narrow-bodied jet transport. Results indicate that from the viewpoint of noise attenuation a laminated composite shell does not appear to offer any significant advantage over an aluminum shell. However, the transmission loss of a laminated composite shell is sensitive to the orientation of the fibers and this suggests the possibility of using a laminated composite shell to tailor the noise attenuation characteristics to meet a specific need.
L. R. Koval, "Sound Transmission into a Laminated Composite Cylindrical Shell," Journal of Sound and Vibration, Elsevier, Jan 1980.
The definitive version is available at http://dx.doi.org/10.1016/0022-460X(80)90724-5
Mechanical and Aerospace Engineering
Article - Journal
© 1980 Elsevier, All rights reserved.