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Showing 1 to 2 of 2 for “"acoustic dipole"”.
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Attenuation of Low Frequency Structurally Radiated Noise With an Array of Weak Radiating Cells
… response leads the cell to behave as an acoustic dipole and thus as a poor sound radiating source. The control of low frequency structurally radiated noise is then achieved by covering the structure with an array of these weak radiating cells, i.e. surface treatment. Thus, the surface …
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An Analytical Study of the Weak Radiating Cell as a Passive Low Frequency Noise Control Device
At low frequency where the acoustic wavelength is greater than the size of the vibrating structure, the radiated acoustic power is directly related to the volume velocity of the structure. Thus, minimizing the volume velocity is an effective noise reduction approach for low frequency structurally …