Beam forming of the underwater sound field from impact pile driving

2013 ◽  
Vol 134 (1) ◽  
pp. EL1-EL6 ◽  
Author(s):  
Peter H. Dahl ◽  
Per G. Reinhall
Keyword(s):  
Sound Field ◽  
Beam Forming ◽  
Pile Driving ◽  
Underwater Sound

Some new observations on the underwater sound field from impact pile driving

2016 ◽  
Vol 140 (4) ◽  
pp. 3410-3410
Author(s):  
Peter H. Dahl ◽  
David R. Dall'Osto
Keyword(s):  
Sound Field ◽  
Pile Driving ◽  
Underwater Sound

The underwater sound field from vibratory pile driving

2015 ◽  
Vol 137 (6) ◽  
pp. 3544-3554 ◽  
Author(s):  
Peter H. Dahl ◽  
David R. Dall'Osto ◽  
Dara M. Farrell
Keyword(s):  
Sound Field ◽  
Pile Driving ◽  
Underwater Sound ◽  
Vibratory Pile Driving

scholarly journals Spiral Sound Wave Transducer Based on the Longitudinal Vibration

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3674 ◽  
Author(s):  
Wei Lu ◽  
Yu Lan ◽  
Rongzhen Guo ◽  
Qicheng Zhang ◽  
Shichang Li ◽  
...  
Keyword(s):  
Sound Wave ◽  
Longitudinal Vibration ◽  
Three Dimensional ◽  
Low Frequency ◽  
Sound Field ◽  
Field Measurements ◽  
Sound Waves ◽  
Underwater Sound ◽  
Three Dimensional Finite Element ◽  
Wave Transducer

A spiral sound wave transducer comprised of longitudinal vibrating elements has been proposed. This transducer was made from eight uniform radial distributed longitudinal vibrating elements, which could effectively generate low frequency underwater acoustic spiral waves. We discuss the production theory of spiral sound waves, which could be synthesized by two orthogonal acoustic dipoles with a phase difference of 90 degrees. The excitation voltage distribution of the transducer for emitting a spiral sound wave and the measurement method for the transducer is given. Three-dimensional finite element modeling (FEM)of the transducer was established for simulating the vibration modes and the acoustic characteristics of the transducers. Further, we fabricated a spiral sound wave transducer based on our design and simulations. It was found that the resonance frequency of the transducer was 10.8 kHz and that the transmitting voltage resonance was 140.5 dB. The underwater sound field measurements demonstrate that our designed transducer based on the longitudinal elements could successfully generate spiral sound waves.

scholarly journals Parametric spatial post-filtering utilising high-order circular harmonics with applications to underwater sound-field visualisation

2021 ◽  
Vol 149 (6) ◽  
pp. 4463-4476
Author(s):  
Vasileios Bountourakis ◽  
Leo McCormack ◽  
Mathias Winberg ◽  
Ville Pulkki
Keyword(s):  
Sound Field ◽  
High Order ◽  
Underwater Sound

Underwater sound from pile driving and protected marine species issues

2012 ◽  
Vol 132 (3) ◽  
pp. 2034-2034
Author(s):  
Amy R. Scholik-Schlomer ◽  
Jason Gedamke
Keyword(s):  
Marine Species ◽  
Pile Driving ◽  
Underwater Sound

Underwater sound pressures from marine pile driving

2004 ◽  
Vol 116 (4) ◽  
pp. 2648-2648 ◽  
Author(s):  
Richard B. Rodkin ◽  
James A. Reyff
Keyword(s):  
Pile Driving ◽  
Underwater Sound
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