On Sound Transmission into an Orthotropic Shell

Author

Leslie Robert Koval, Missouri University of Science and TechnologyFollow

Abstract

A mathematical model is presented for the transmission of airborne noise through the walls of an orthotropic cylindrical shell. Parameters were varied to see how orthotropicity affected noise transmission. When compared to that for an isotropic shell, the cylinder transmission loss was found to be quite sensitive to the ratio of circumferential to axial modulus of elasticity. A modulus ratio greater than unity appears to enhance transmission loss in the mass-controlled region, while a ratio less than unity degrades it. Below the ring frequency, the trends appear to be reversed. The cylinder transmission loss appears to be relatively insensitive to changes in the shear modulus.

Recommended Citation

L. R. Koval, "On Sound Transmission into an Orthotropic Shell," Journal of Sound and Vibration, Elsevier, Jan 1979.

The definitive version is available at https://doi.org/10.1016/0022-460X(79)90376-6

Department(s)

Mechanical and Aerospace Engineering

International Standard Serial Number (ISSN)

0022-460X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1979 Elsevier, All rights reserved.

Publication Date

01 Jan 1979