NATURAL FREQUENCY AND RADIATED NOISE MEASUREMENTS ON A RING-STIFFENED CYLINDER - EXPERIMENTAL DATA ANNEX

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Authors
  1. Gilroy, L.E.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
DREA has conducted an experiment involving the mesurement of radiated noise from a ring-stiffened cylinder subjected to a harmonic load. This experiment was performed to provide validation data for structural acoustics computer codes being developed in-house and under contract. Th eexperiment was in two parts. The first involved determining the natural frequencies of the cylinder in air, while the second stage of testing involved determining the natural frequencies of the cylinder while it was submerged and measuring directivity patterns of radiated noise when the submerged cylinder was excited at some of its natural frequencies. The report contains all the directivity patterns produced in the trials, as well as listings of the measured natural frequencies, both in-air and submerged and, as such, serves as an annex to an earlier report describing the experiment.
Keywords
Radiated noise
Report Number
DREA-TC-93-313 — Technical Communication
Date of publication
01 Dec 1993
Number of Pages
37
DSTKIM No
94-01062
CANDIS No
137152
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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