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Prediction of structure borne noise ...

Kim, Huikwan.

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Prediction of structure borne noise radiation and propagation from offshore impact pile driving.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Prediction of structure borne noise radiation and propagation from offshore impact pile driving./
作者:	Kim, Huikwan.
面頁冊數:	151 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-08(E), Section: B.
Contained By:	Dissertation Abstracts International75-08B(E).
標題:	Ocean engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3619458
ISBN:	9781303886904

Prediction of structure borne noise radiation and propagation from offshore impact pile driving.
Kim, Huikwan.

Prediction of structure borne noise radiation and propagation from offshore impact pile driving. - 151 p.

Source: Dissertation Abstracts International, Volume: 75-08(E), Section: B.

Thesis (Ph.D.)--University of Rhode Island, 2014.

This item must not be sold to any third party vendors.

This study investigates prediction of structure borne noise radiation and propagation from offshore impact pile driving in shallow water environment. Noise generated by offshore impact pile driving radiates into and propagates through the air, water, and sediment medium. Predicting noise levels around the pile structure at sea is required to estimate the effects of the noise and vibration on marine life. This study used one of the commercial FE (Finite Element) code Abaqus 6.11 to calculate harmonic and transient response of the offshore wind turbine support structure and associated acoustic pressure amplitudes due to hydraulic hammer impact on top. First of all, the study focuses on long range prediction of acoustic pressure by utilizing the results from FE model to existing parabolic equation model as its starting field. In addition to numerical approach, a simple analytic solution has been developed based on the theory of free and forced vibration of thin cylindrical shell. It is useful to calculate structural response by inputting basic pile design parameters such as length, radius and material properties instead of developing numerical models. Then the study numerically investigated effects of noise and vibration along the water - ocean bottom interface because many benthic animals live on the seabed. The ocean bottom for this study was considered as elastic medium which supports propagation of shear and interface waves in addition to compressional waves. Finally, it is important how much we can reduce the noise to protect biological damages on marine life. This study quantitatively predicted noise attenuation of air bubble curtain by putting small size air bubbles in the water column.

ISBN: 9781303886904Subjects--Topical Terms:

660731
Ocean engineering.

Prediction of structure borne noise radiation and propagation from offshore impact pile driving.
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245 1 0 $a Prediction of structure borne noise radiation and propagation from offshore impact pile driving.
300 $a 151 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-08(E), Section: B.
500 $a Adviser: James H. Miller.
502 $a Thesis (Ph.D.)--University of Rhode Island, 2014.
506 $a This item must not be sold to any third party vendors.
520 $a This study investigates prediction of structure borne noise radiation and propagation from offshore impact pile driving in shallow water environment. Noise generated by offshore impact pile driving radiates into and propagates through the air, water, and sediment medium. Predicting noise levels around the pile structure at sea is required to estimate the effects of the noise and vibration on marine life. This study used one of the commercial FE (Finite Element) code Abaqus 6.11 to calculate harmonic and transient response of the offshore wind turbine support structure and associated acoustic pressure amplitudes due to hydraulic hammer impact on top. First of all, the study focuses on long range prediction of acoustic pressure by utilizing the results from FE model to existing parabolic equation model as its starting field. In addition to numerical approach, a simple analytic solution has been developed based on the theory of free and forced vibration of thin cylindrical shell. It is useful to calculate structural response by inputting basic pile design parameters such as length, radius and material properties instead of developing numerical models. Then the study numerically investigated effects of noise and vibration along the water - ocean bottom interface because many benthic animals live on the seabed. The ocean bottom for this study was considered as elastic medium which supports propagation of shear and interface waves in addition to compressional waves. Finally, it is important how much we can reduce the noise to protect biological damages on marine life. This study quantitatively predicted noise attenuation of air bubble curtain by putting small size air bubbles in the water column.
590 $a School code: 0186.
650 4 $a Ocean engineering. $3 660731
690 $a 0547
710 2 $a University of Rhode Island. $b Ocean Engineering. $3 3175737
773 0 $t Dissertation Abstracts International $g 75-08B(E).
790 $a 0186
791 $a Ph.D.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3619458