Abstract
Theoretical model of acoustic scattering by submerged thin elastic air-filled spherical shells is compared with the results of direct measurements in an underwater test facility. Elastic resonances arising in elastic shells significantly affect the scattering, as demonstrated both theoretically and experimentally. Measurements were carried out in two frequency ranges. Two kinds of resonances—extensional and bending—were expected. In the low-frequency range, a predicted sharp drop in back scattering is observed, which corresponds to an extensional resonance mode. In the high frequency region, an expected wide resonance zone with enhanced scattering was found, although differing from the theoretically predicted distribution of resonances, which may be attributed to slight imperfection of the shell used in the experiment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.