Accession Number : AD0718313

Title :   Self and Mutual Acoustic Radiation Impedances for Pistons in a Plane Infinite Rigid Baffle,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Berkowitz,R. L. ; Baier,R. V.

Report Date : 18 JAN 1971

Pagination or Media Count : 62

Abstract : Formulas to calculate the self-impedance and mutual-impedance coefficients of acoustic radiation from disks in an infinite rigid baffle are discussed. A Fortran IV computer program which evaluates these expressions is listed, and two tables of numerical values are printed. The first table lists both the self-impedance and the mutual-impedance coefficients as a function of ka and kd, where kd = nka, for n = 2, 3, 4, ..., 151, and where ka = 0.02 (0.02) 0.10, 0.15 (0.05) 1.00, 1.20 (0.20) 3.00. The second table lists only the self impedance for ka = 2.50 (0.50) 77.0. (Author)

Descriptors :   (*UNDERWATER SOUND, SOUND TRANSMISSION), (*SONAR ARRAYS, ACOUSTIC IMPEDANCE), COMPUTER PROGRAMS, INPUT OUTPUT DEVICES, MATHEMATICAL ANALYSIS, TABLES(DATA)

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE