Accession Number : AD0728382

Title :   Acoustic Radiation Impedance of Caps and Rings on Oblate Spheroidal Baffles.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Baier,R. V.

Report Date : 16 JUL 1971

Pagination or Media Count : 45

Abstract : The acoustic radiation impedance seen by curved vibrating caps and rings located on hard baffles of oblate spheroidal shape has been analyzed using eigenfunction expansion in oblate spheroidal wave functions. With the help of extensive computer programs the formulas have been numerically evaluated. The results are presented in families of plotted curves showing the effect of curvature on the acoustic radiation impedance. Calculations were made for ranges in acoustic size of 0.1 less than or equal to 20. (Author)

Descriptors :   (*UNDERWATER SOUND, *ACOUSTIC IMPEDANCE), TRANSDUCERS, BAFFLES, WAVE FUNCTIONS, MATHEMATICAL ANALYSIS

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE