DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0735133
Title:
Far Field Sound Patterns from Anisotropic Cylindrical Shells under Lateral Point Loading at Low Frequencies.
Descriptive Note:
Technical rept.,
Corporate Author:
J G ENGINEERING RESEARCH ASSOCIATES BALTIMORE MD
Report Date:
1971-07-01
Pagination or Media Count:
63.0
Abstract:
The report presents an approximate theory and a computer program for calculating the far field sound radiation patterns from cross stiffened and sandwich cylindrical shells under lateral point loading. The far field radiation patterns are given for a range of low ka. It has been found that a practical structure at low frequencies acts as a dipole and then, as the frequency is increased, transforms into a quadrapole. As the frequency is increased further, the higher lobes come into the picture. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE