flextensional transducer
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Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1258
Author(s):  
Duo Teng ◽  
Xiaoyong Liu ◽  
Feng Gao

To meet the requirements of low frequency, high power, small size and light weight, a type of Class I barrel-stave flextensional transducer employing improved concave stave is presented. As the key component of flextensional transducer, concave stave plays an important role in vibrating efficiently to radiate acoustic energy. The structure of concave stave has a great effect on its behavior. In this paper, the main parameters of concave stave are discussed, especially the effect of radius on flextensional transducer. Both concave stave and transducer are analyzed through finite element method, including mechanical transformation behavior of concave stave and performances of flextensional transducer. On the basis of finite element design, five prototypes employing concave staves with different radii are manufactured and measured. The simulations and tests reveal that concave stave can affect performances of flextensional transducer. A larger radius of concave stave will result in a greater amplification of vibration and a lower resonance frequency of transducer. This can be a feasible way to optimize the resonance frequency or source level of flextensional transducer through adjusting the radius of concave stave in a small range. According to the electrical and acoustical tests, our Class I barrel-stave flextensional transducer is capable of being used as underwater low-frequency small-size projector.


2021 ◽  
Vol 2012 (1) ◽  
pp. 012017
Author(s):  
Houlin Fang ◽  
Yang Liu ◽  
Tianqing Zhao ◽  
Yunzhe Liu ◽  
Kaikai Li ◽  
...  

2021 ◽  
Author(s):  
Yuchen Sun ◽  
Weiyi Chen ◽  
Zongji Li ◽  
Pingbo Wang ◽  
Qian Xie ◽  
...  

2021 ◽  
Vol 149 (4) ◽  
pp. A121-A121
Author(s):  
John Butler ◽  
Victoria Curtis

2019 ◽  
Vol 149 ◽  
pp. 25-31
Author(s):  
Rongjing Guo ◽  
Shiyang Li ◽  
Tangan Li ◽  
Xuan Sun ◽  
Luan Lin ◽  
...  

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2102 ◽  
Author(s):  
Tianfang Zhou ◽  
Yu Lan ◽  
Qicheng Zhang ◽  
Jingwen Yuan ◽  
Shichang Li ◽  
...  

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