Beam forming of the underwater sound field from impact pile driving

被引：15

作者：

Dahl, Peter H. ^{[1
,2
]}

Reinhall, Per G. ^{[3
]}

机构：

[1] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA

[2] Univ Washington, Dept Mech Engn, Seattle, WA 98105 USA

[3] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2013年 / 134卷 / 01期

关键词：

Arrival angles - Energy budgets - Impact driving - Radial expansions - Supersonic speed - Underwater noise - Underwater sound - Vertical line arrays;

D O I：

10.1121/1.4807430

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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. (C) 2013 Acoustical Society of America

引用

页码：EL1 / EL6

页数：6

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