Propagation of two simple acoustic transients in an isovelocity layer with perfectly-reflecting boundaries
By: Alan Charles Miller, George Frederick Wendt
Contributors: Wendt, George Frederick; Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1967
Place of publication: Monterey, Calif
Language: eng
Format: Electronic resource
Number of pages: 120
Description: The propagation of simple acoustic transients in an isovelocity water layer was investigated for the purpose of studying a relationship between the propagation of transients in ducts and in layers. The Laplace transform method was used to obtain approximate solutions for the acoustic pressure, particle velocity, and particle displacement resulting from a step-function input in velocity and the particle velocity resulting from a gated sine-wave input in velocity. Computer programs were written to evaluate and graph the resulting waveforms. The waveforms resulting from step-function and gated sine-wave inputs in velocity were observed and compared with the predicted waveforms. With the use of Mylar transducers, good correlation was obtained in the region of validity of the theoretical solutions. It was found that previously published solutions for the propogation of transients in ducts became the leading terms of the associated solutions for the layer.
Notes: Thesis Advisor(s): Coppens, Alan B.

"June 1967."

Description based on title screen as viewed on November 13, 2007.

Thesis (M.S. in Phsyics)--Naval Postgraduate School, June 1967.

Includes bibliographical references (p. 72-73).

"New limitation change: Approved for public release, distribution unlimited. Authority: ST-A USNPS LTR, 16 Nov 71."

Also available in print.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader.

US Navy (USN) author.

dk/ upgraded 1/7/08