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The Sound Radiation Characteristic from Un-baffled Rectangular Plates

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Abstract

The sound radiation characteristic from un-baffled rectangular plates is studied in this paper. Both the pressure jump and the transverse displacement of vibrating rectangular plates are also presented. The sound power level radiated from un-baffled plates is numerically calculated by using a double layer integral representation of the sound radiation pressure and the modal coupling coefficients. Rectangular plates with clamped support and elastically support encountered frequently are calculated as numerical experiments. The sound power level radiated from baffled rectangular plates with the same boundary conditions are also calculated in numerical experiments for comparison. From the viewpoint of energy, average velocity square of un-baffled and baffled rectangular plates with␣different boundary conditions is also calculated respectively. The relationship of sound radiation efficiency between un-baffled and baffled rectangular plates is also deduced.

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Correspondence to Yufeng Qiao.

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This Works is supported by the National Natural Science Foundation of China (Grant No. 50075029)

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Qiao, Y., Huang, Q. The Sound Radiation Characteristic from Un-baffled Rectangular Plates. Int J Mech Mater Des 2, 245–258 (2005). https://doi.org/10.1007/s10999-006-9005-z

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  • DOI: https://doi.org/10.1007/s10999-006-9005-z

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