Lafeber, Frans Hendrik; Bosschers, Johan
13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark, no. ID105, 2016.
@conference{Lafeber2016,
title = {Validation of computational and experimental prediction methods for the underwater radiated noise of a small research vessel},
author = {Frans Hendrik Lafeber and Johan Bosschers},
url = {http://www.marin.nl/web/Publications/Papers/Validation-of-computational-and-experimental-prediction-methods-for-the-underwater-radiated-noise-of-a-small-research-vessel.htm},
year = {2016},
date = {2016-09-04},
booktitle = {13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark},
number = {ID105},
abstract = {The underwater radiated noise of a small research vessel, The Princess Royal, has been predicted using computational methods and model tests and has been compared to full-scale data. For the model tests, a correction for the Lloyd’s mirror effect has been implemented in the analysis. The results are then compared to data from full-scale measurements. After correcting for the viscous scale effects on vortex cavitation, there is a good agreement between the model tests and full scale at the lowest speed. For the higher speeds (more cavita-tion), the agreement is good at the low and high frequency range, but there is a difference of about 10 dB between the model tests and full scale at mid frequency range.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Abeil, Bastien
Experimental prediction of anti roll tanks on the rolling of ships Conference
13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark, 2016.
@conference{Abeil2016,
title = {Experimental prediction of anti roll tanks on the rolling of ships},
author = {Bastien Abeil},
url = {http://www.marin.nl/web/Publications/Papers/Experimental-prediction-of-anti-roll-tanks-on-the-rolling-of-ships.htm},
year = {2016},
date = {2016-09-04},
booktitle = {13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark},
pages = {ID146},
abstract = {Over the last years MARIN has developed an integrated model testing approach for the prediction of the performance of free-surface Anti Roll Tanks (ART) in reducing the roll motion of vessels. Beside the tailor-made test programme, the approach is mostly characterised by the specific test set-up that allows the measurement of the reaction forces generated by the ART on the ship model during seakeeping tests in a wave basin. After a brief introduction of the working principle of free-surface ARTs and the MARIN test set-up and programme, the paper describes in detail the measurements obtained from ARTs during a series of seakeeping test campaigns.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
H.J. Prins, Flikkema
Suppression Of underwater Noise Induced by Cavitation: SONIC Conference
6th European Transport Research Conference, Warsaw, Poland, 2016.
@conference{Prins2016b,
title = {Suppression Of underwater Noise Induced by Cavitation: SONIC},
author = {Prins, H.J., Flikkema, M.B., Bosschers, J., Koldenhof, Y., Jong, C.A.F. de, Pestelli, C., Mumm, H., Bretschneider, H., Humphrey, V., Hyensjö, M.},
url = {http://www.marin.nl/web/Publications/Papers/Suppression-Of-underwater-Noise-Induced-by-Cavitation-SONIC.htm},
year = {2016},
date = {2016-04-01},
booktitle = {6th European Transport Research Conference, Warsaw, Poland},
abstract = {In EU FP7 project SONIC, partners set out in October 2012 to study the underwater radiated noise of ships and shipping. The objectives of the project were (1) to study the numerical and experimental techniques to determine the underwater noise; (2) to develop methods for mapping the noise of ships and shipping; and (3) to determine mitigation measures to reduce the underwater radiated noise.
Numerical methods focused on determination of the cavitation extent and dynamics on propellers which is the main source of noise of commercial shipping. Research also focused on methods to determine the underwater radiated noise from machinery. Experimental methods in model test facilities have been studied and validated against dedicated full scale measurements. The ship noise source levels obtained from these numerical and experimental methods provide input to shipping noise mapping tools to determine the overall underwater noise in a certain sea area.
Based on the experience gained in the SONIC project, a set of guidelines for regulators concerned with underwater radiated noise of ships were developed together with the AQUO project. These guidelines discuss the definitions, numerical and experimental methods and mitigation solutions for underwater radiated noise.
This paper gives an overview of the work done by all partners in the SONIC project.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Numerical methods focused on determination of the cavitation extent and dynamics on propellers which is the main source of noise of commercial shipping. Research also focused on methods to determine the underwater radiated noise from machinery. Experimental methods in model test facilities have been studied and validated against dedicated full scale measurements. The ship noise source levels obtained from these numerical and experimental methods provide input to shipping noise mapping tools to determine the overall underwater noise in a certain sea area.
Based on the experience gained in the SONIC project, a set of guidelines for regulators concerned with underwater radiated noise of ships were developed together with the AQUO project. These guidelines discuss the definitions, numerical and experimental methods and mitigation solutions for underwater radiated noise.
This paper gives an overview of the work done by all partners in the SONIC project.
2016
Lafeber, Frans Hendrik; Bosschers, Johan
13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark, no. ID105, 2016.
Abstract | Links | BibTeX | Tags: cavitation, computations, model tests, propeller, underwater radiated noise
@conference{Lafeber2016,
title = {Validation of computational and experimental prediction methods for the underwater radiated noise of a small research vessel},
author = {Frans Hendrik Lafeber and Johan Bosschers},
url = {http://www.marin.nl/web/Publications/Papers/Validation-of-computational-and-experimental-prediction-methods-for-the-underwater-radiated-noise-of-a-small-research-vessel.htm},
year = {2016},
date = {2016-09-04},
booktitle = {13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark},
number = {ID105},
abstract = {The underwater radiated noise of a small research vessel, The Princess Royal, has been predicted using computational methods and model tests and has been compared to full-scale data. For the model tests, a correction for the Lloyd’s mirror effect has been implemented in the analysis. The results are then compared to data from full-scale measurements. After correcting for the viscous scale effects on vortex cavitation, there is a good agreement between the model tests and full scale at the lowest speed. For the higher speeds (more cavita-tion), the agreement is good at the low and high frequency range, but there is a difference of about 10 dB between the model tests and full scale at mid frequency range.},
keywords = {cavitation, computations, model tests, propeller, underwater radiated noise},
pubstate = {published},
tppubtype = {conference}
}
Abeil, Bastien
Experimental prediction of anti roll tanks on the rolling of ships Conference
13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark, 2016.
Abstract | Links | BibTeX | Tags: Anti roll tank, ART, model tests
@conference{Abeil2016,
title = {Experimental prediction of anti roll tanks on the rolling of ships},
author = {Bastien Abeil},
url = {http://www.marin.nl/web/Publications/Papers/Experimental-prediction-of-anti-roll-tanks-on-the-rolling-of-ships.htm},
year = {2016},
date = {2016-09-04},
booktitle = {13th International Symposium on Practical Design of Ships (PRADS), Copenhagen, Denmark},
pages = {ID146},
abstract = {Over the last years MARIN has developed an integrated model testing approach for the prediction of the performance of free-surface Anti Roll Tanks (ART) in reducing the roll motion of vessels. Beside the tailor-made test programme, the approach is mostly characterised by the specific test set-up that allows the measurement of the reaction forces generated by the ART on the ship model during seakeeping tests in a wave basin. After a brief introduction of the working principle of free-surface ARTs and the MARIN test set-up and programme, the paper describes in detail the measurements obtained from ARTs during a series of seakeeping test campaigns.},
keywords = {Anti roll tank, ART, model tests},
pubstate = {published},
tppubtype = {conference}
}
H.J. Prins, Flikkema
Suppression Of underwater Noise Induced by Cavitation: SONIC Conference
6th European Transport Research Conference, Warsaw, Poland, 2016.
Abstract | Links | BibTeX | Tags: cavitation, Full scale tests, model tests, Noise, Noise Mitigation, Shipping, Sound, Sound Mapping
@conference{Prins2016b,
title = {Suppression Of underwater Noise Induced by Cavitation: SONIC},
author = {Prins, H.J., Flikkema, M.B., Bosschers, J., Koldenhof, Y., Jong, C.A.F. de, Pestelli, C., Mumm, H., Bretschneider, H., Humphrey, V., Hyensjö, M.},
url = {http://www.marin.nl/web/Publications/Papers/Suppression-Of-underwater-Noise-Induced-by-Cavitation-SONIC.htm},
year = {2016},
date = {2016-04-01},
booktitle = {6th European Transport Research Conference, Warsaw, Poland},
abstract = {In EU FP7 project SONIC, partners set out in October 2012 to study the underwater radiated noise of ships and shipping. The objectives of the project were (1) to study the numerical and experimental techniques to determine the underwater noise; (2) to develop methods for mapping the noise of ships and shipping; and (3) to determine mitigation measures to reduce the underwater radiated noise.
Numerical methods focused on determination of the cavitation extent and dynamics on propellers which is the main source of noise of commercial shipping. Research also focused on methods to determine the underwater radiated noise from machinery. Experimental methods in model test facilities have been studied and validated against dedicated full scale measurements. The ship noise source levels obtained from these numerical and experimental methods provide input to shipping noise mapping tools to determine the overall underwater noise in a certain sea area.
Based on the experience gained in the SONIC project, a set of guidelines for regulators concerned with underwater radiated noise of ships were developed together with the AQUO project. These guidelines discuss the definitions, numerical and experimental methods and mitigation solutions for underwater radiated noise.
This paper gives an overview of the work done by all partners in the SONIC project.},
keywords = {cavitation, Full scale tests, model tests, Noise, Noise Mitigation, Shipping, Sound, Sound Mapping},
pubstate = {published},
tppubtype = {conference}
}
Numerical methods focused on determination of the cavitation extent and dynamics on propellers which is the main source of noise of commercial shipping. Research also focused on methods to determine the underwater radiated noise from machinery. Experimental methods in model test facilities have been studied and validated against dedicated full scale measurements. The ship noise source levels obtained from these numerical and experimental methods provide input to shipping noise mapping tools to determine the overall underwater noise in a certain sea area.
Based on the experience gained in the SONIC project, a set of guidelines for regulators concerned with underwater radiated noise of ships were developed together with the AQUO project. These guidelines discuss the definitions, numerical and experimental methods and mitigation solutions for underwater radiated noise.
This paper gives an overview of the work done by all partners in the SONIC project.