A broadband omnidirectional barrel-stave flextensional transducer
A broadband omnidirectional barrel-stave flextensional transducer
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DOI：
10.1121/1.427032
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发表时间：
1999-08-01
影响因子：
2.4
通讯作者：
Christopher, DA
中科院分区：
文献类型：
--
作者：
Jones, DF;Christopher, DA
压电III类桶形板条弯张换能器是一种能够在宽频带上产生声音的水下声源。这种宽带性能是通过耦合的基本弯曲和纵向振动模式。在低频弯曲共振附近，III类换能器与波长相比很小，并且其辐射是全向的。然而，在纵向谐振附近的频率处，辐射是定向的。在这篇文章中，我们通过使用有限元模型，III类换能器可以设计为全方位辐射在整个频带。
The piezoelectric Class III barrel-stave flextensional transducer is an underwater acoustic source that is capable of generating sound over a wide frequency band. This broadband performance is achieved through coupling the fundamental flexural and longitudinal modes of vibration. Near the low frequency flexural resonance, the Class III transducer is small compared to a wavelength, and its radiation is omnidirectional. However, at frequencies in the vicinity of the longitudinal resonance, the radiation is directional. In this article, we show through the use of a finite element model that the Class III transducer can be designed for omnidirectional radiation over the entire band.