Determination of the complex mass density of air contained in a rigid porous solid by an acoustic method
By: Kevin A. Grundy
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1993
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 69
Description: An acoustical method for determining the frequency dependent complex effective mass density p(eff) of air contained in a rigid porous solid is investigated. An apparatus was designed and built which holds an air-filled porous solid sample within a cylindrical tube capped on each end by identical moving-coil loudspeakers. A quantity of air is made to oscillate back and forth as a plug through the porous solid sample. P(eff) is obtained from pressure and acceleration measurements taken at the ends of the sample tube. A description of the apparatus and the experimental results are presented.
Notes: Thesis advisor(s): Steven R. Baker.

"September 1993."

Thesis (M.S. in Engineering Acoustics) Naval Postgraduate School, September 1993.

Bibliography: p. 68.

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US Navy (USN) author.