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  4. On the prediction of pile drivimg induced underwater sound pressure levels over long ranges
 
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On the prediction of pile drivimg induced underwater sound pressure levels over long ranges

Publikationstyp
Conference Paper
Date Issued
2013
Sprache
English
Author(s)
Lippert, Tristan  
Heitmann, Kristof  
Ruhnau, Marcel  
Lippert, Stephan  
Estorff, Otto von  
Institut
Modellierung und Berechnung M-16  
TORE-URI
http://hdl.handle.net/11420/7514
Volume
3
Start Page
1872
End Page
1879
Citation
20th International Congress on Sound and Vibration 2013 (ICSV 20) : Bangkok, Thailand, 7 - 11, July 2013 / ed.: Malcolm J. Crocker ... [Under the auspices of: International Institute of Acoustics & Vibration ...]. - Red Hook, NY : Curran. - Vol. 3 (2013), Seite 1872-1879
Contribution to Conference
20th International Congress on Sound and Vibration 2013, ICSV 2013  
Scopus ID
2-s2.0-84897055624
Publisher
Curran
Underwater noise, radiated from pile driving at offshore wind farm construction sites, has become a major issue in the course of the recent reorganization of the energy supply in Germany. To predict the sound pressure levels (SPLs) of planned wind farms and to optimize the according noise insulation systems, the need for a numerical simulation tool has arisen. In this contribution, an envisaged global model, consisting of the detailed simulation of the pile/soil-interaction, the properties of insulation measures, and the prediction of SPL in large distances from the pile, is introduced. A basic finite element (FE) model is presented which models the pile itself and the surrounding water up to a distance of 50 m around the pile. This model is used to extract the acoustic source properties that are needed to couple the presented wavenumber Integration (WI) code, which is utilized as a propagation method. The pile as an acoustic source is investigated in detail and feasible simplifications of the extracted output signals are suggested. Finally, the results of the WI model are compared to the FE results and an outlook on future research activities is given.
DDC Class
600: Technik
620: Ingenieurwissenschaften
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