Acoustic radiation from the elastic impact of a sphere with a slab |
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Authors: | Adnan Akay Thomas H. Hodgson |
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Affiliation: | National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709 USA;Center for Acoustical Studies, North Carolina State University, Raleigh, NC 27607 USA |
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Abstract: | The transient sound radiation from the impact of a spherical object with a slab is analysed theoretically and compared with experimental results. It is shown that the major source of sound radiation when a sphere impinges on a massive plate is due to the sudden change of velocity of the sphere. By using the method of images, an analytical expression predicting the sound pressure waveform is obtained. Experimental results confirm the theoretical analysis and provide further explanation of this rigid body type of acoustic radiation. |
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