Diffraction and attenuation of a tone burst in mono-relaxing media |
| |
Authors: | Dain Yefim Lueptow Richard M |
| |
Institution: | Department of Mechanical Engineering, 2145 Sheridan Road, Northwestern University, Evanston, Illinois 60208, USA. |
| |
Abstract: | The influence of intrinsic absorption in a relaxing medium and the resulting three-dimensional diffraction correction of the magnitude of the acoustic pressure averaged over the surface of a receiver is investigated for a tone burst. A rigorous formula for the damped acoustic pressure average at the receiver was obtained for arbitrary pulsed waves in a mono-relaxing medium. Depending on the pulse oscillation frequency, envelope duration, and relaxation frequency of the media, the plane wave burst envelope can be reduced, amplified, or otherwise deformed. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|