1aSA3. Radiation from small acoustic sources located close to a submerged, compliantly coated cylindrical shell.

Session: Monday Morning, December 1


Author: Michael D. Gray
Location: Undersea Res. Program Office, Georgia Tech. Res. Inst., 505 Tech Way N.W., Atlanta, GA 30318
Author: Gary W. Caille
Location: Undersea Res. Program Office, Georgia Tech. Res. Inst., 505 Tech Way N.W., Atlanta, GA 30318
Author: John R. Bogle
Location: Georgia Inst. of Technol., Atlanta, GA 30332
Author: Peter H. Rogers
Location: Georgia Inst. of Technol., Atlanta, GA 30332

Abstract:

Measurements were made of the radiation from individual, small acoustic sources located close to a submerged, compliantly coated, thin cylindrical shell in the 1ka>5, the field is simple, and is well approximated by a source and its negative image. For ka<4, the pressure field is characterized by significant spatial variations, owing to contributions from the elastic response of the coated cylinder. Finite-element model results are compared with the measurements, and are used to provide insight into the interactions between the source and the coated shell. [Work supported by ONR.]


ASA 134th Meeting - San Diego CA, December 1997