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Acoustics: Sound Fields, Transducers and Vibration, 2nd Edition by Tim Mellow, Leo Beranek

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13.14. Radiation from an infinitely long oscillating strip in an infinite baffle [37,38]

Boundary conditions

Essentially this is the limiting case of a rectangular piston as one of its dimensions tends to infinity. The infinitely long strip of width d shown in Fig. 13.40 is mounted in an infinite baffle in the xy plane and oscillates in the z direction with a harmonically time-dependent velocity u ˜ 0 image . As with the circular piston in an infinite baffle, the monopole source elements, together with their images, coalesce to form elements of double strength. Because of the symmetry of the pressure fields on either side of the ...

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