On the design of an acoustically isolating bubble screen for the Carr Inlet Acoustic Range.

dc.contributor.advisorSanders, James V.
dc.contributor.authorMarr, Kenneth William
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentPhysics and Chemistry
dc.contributor.secondreaderWilson, O.B. Jr.
dc.dateJune 1981
dc.date.accessioned2012-11-20T00:17:05Z
dc.date.available2012-11-20T00:17:05Z
dc.date.issued1981-06
dc.description.abstractThe theoretical acoustic behavior of an underwater bubble screen was examined using Rayleigh reflection theory. A microcomputer model simulates the acoustic impedance mismatch at the interfaces of an ideal, bubble screen. A sensitivity analysis indicates that the angle of incidence of sound energy and the speed of sound in the layer are the most important screen properties for predicting the insulating capability of a bubble screen. In the neighborhood of frequencies for which the screen thickness is an integral number of half wavelengths, the interference results in a reduced reflection coefficient and a corresponding increase in transmission through the screen. So that for a broad band spectrum wide enough to cover a number of such frequencies, the attenuation to be expected exceeds 10 dB only over about 90 percent of the spectrum. The interest for this work came from the need for a noise insulating screen at the Carr Inlet Acoustic Range.
dc.description.distributionstatementApproved for public release; distribution is unlimited.
dc.description.serviceLieutenant, United States Navy
dc.description.urihttp://archive.org/details/ondesignofncoust1094520625
dc.identifier.urihttps://hdl.handle.net/10945/20625
dc.language.isoen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.subject.authoracoustic isolation
dc.subject.authoracoustic reflection
dc.subject.authorbubble screen
dc.subject.lcshPhysicsen_US
dc.titleOn the design of an acoustically isolating bubble screen for the Carr Inlet Acoustic Range.en_US
dc.typeThesisen_US
dspace.entity.typePublication
etd.thesisdegree.disciplineEngineering Acoustics
etd.thesisdegree.grantorNaval Postgraduate School
etd.thesisdegree.levelMasters
etd.thesisdegree.nameMaster of Science in Engineering Acoustics
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