圆形和矩形板辐射声的指向性模式研究

2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA) Pub Date : 2016-10-01 DOI:10.1109/SPAWDA.2016.7830032

Na Li, Xiping He, Xiuli Yan

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引用次数: 0

摘要

研究了两种用于在空气中产生高定向辐射的超声波散热器的平板和阶梯板。具有自由边的矩形板没有解析解。提出了一种基于有限元法计算自由边缘声辐射矩形板指向性图的方法。结果表明，阶梯式散热器的指向性模式优于平板散热器。计算得到的散热器指向性图的结构与试验结果非常相似。

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Investigation of directivity patterns of the sound radiated from circular and rectangular plates

Two kinds of flat and stepped plates for ultrasonic radiators for the generation of high directional radiation in air are studied. The rectangular plate with free edges has no analytical solution. An approach for calculation of the directivity pattern of the sound radiated rectangular plate with free edges is developed based on the finite element method. It shows that the directivity pattern of the stepped plate radiator is better than that of the flat one. The configuration of the calculated directivity patterns of the radiators is quite similar to that of the tested one.

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2016 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA)

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