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Dahl PH, Reinhall PG. Beam forming of the underwater sound field from impact pile driving. J Acoust Soc Am. 2013;134(1):EL1-6doi: 10.1121/1.4807430.
Dahl, P. H., & Reinhall, P. G. (2013). Beam forming of the underwater sound field from impact pile driving. The Journal of the Acoustical Society of America, 134(1), EL1-6. https://doi.org/10.1121/1.4807430
Dahl, Peter H, and Reinhall, Per G. "Beam forming of the underwater sound field from impact pile driving." The Journal of the Acoustical Society of America vol. 134,1 (2013): EL1-6. doi: https://doi.org/10.1121/1.4807430
Dahl PH, Reinhall PG. Beam forming of the underwater sound field from impact pile driving. J Acoust Soc Am. 2013 Jul;134(1):EL1-6. doi: 10.1121/1.4807430. PMID: 23862896.
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J Acoust Soc Am. 2013 Jul;134(1):EL1-6. doi: 10.1121/1.4807430.

Beam forming of the underwater sound field from impact pile driving.

The Journal of the Acoustical Society of America

Peter H Dahl, Per G Reinhall

Affiliations

  1. Applied Physics Laboratory and Department of Mechanical Engineering, University of Washington, 1013 Northeast 40th Street, Seattle, Washington 98105, USA. [email protected]

PMID: 23862896 DOI: 10.1121/1.4807430

Abstract

Observations of underwater noise from impact pile driving were made with a vertical line array. Previous studies [Reinhall and Dahl, J. Acoust. Soc. Am. 130, 1209-1216 (2011)] show that the dominant underwater noise from impact driving is from the Mach wave associated with the radial expansion of the pile that propagates down the pile at supersonic speed after impact. Here precise estimates of the vertical arrival angles associated with the down- and up-going Mach wave are made via beam forming, and the energy budget of the arrival structure is quantified.

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