DeRisk — Accurate Prediction of ULS Wave Loads. Outlook and First Results

Bredmose, Henrik; Dixen, Martin; Ghadirian, Amin; Larsen, Torben J.; Schløer, Signe; Andersen, Søren Juhl; Wang, Shaofeng; Bingham, Harry B.; Lindberg, Ole; Christensen, Erik Damgaard; Vested, Malene Hovgaard; Carstensen, Stefan; Engsig-Karup, Allan Peter; Petersen, Ole Skov; Hansen, Hans Fabricius; Mariegaard, Jesper Sandvig; Taylor, Paul H.; Adcock, Thomas A. A.; Obhrai, Charlotte; Gudmestad, Ove T.; Tarp-Johansen, Niels Jacob; Meyer, C. P.; Krokstad, Jørgen R; Suja-Thauvin, Loup; Hanson, T.

doi:10.1016/j.egypro.2016.09.197

Cited by 25 publications

(22 citation statements)

References 17 publications

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“…Differences at higher orders are expected because no piston or boundary movement is included in the model. However, good consistency with experiments using this approach has been presented in earlier work Paulsen et al (2014a) and as part of DeRisk project Bredmose et al (2016) and Ghadirian et al (2016Ghadirian et al ( , 2017. A top view of the computational domains is shown in figure 1.…”

Section: The Numerical Modelsupporting

confidence: 79%

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Detailed force modelling of the secondary load cycle

Ghadirian¹,

Bredmose²

2020

J. Fluid Mech.

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Section: The Numerical Modelsupporting

confidence: 79%

“…The experiments were conducted at DHI Denmark in scale 1:50 as part of the DeRisk project (Bredmose et al 2016). The used shallow water wave basin was 35 m long and 25 m wide.…”

Section: Methodsmentioning

confidence: 99%

Detailed force modelling of the secondary load cycle

Ghadirian¹,

Bredmose²

2020

J. Fluid Mech.

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“…Data from two sets of experiments are used in the present study, performed as part of the DeRisk project [19] and the Wave Loads project [20].…”

Section: Experiments and The Data Analysis Methodsmentioning

confidence: 99%

Investigation of the effect of the bed slope on extreme waves using First Order Reliability Method

Ghadirian¹,

Bredmose²

2019

Marine Structures

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“…Unlike for the free surface, where, building on the fundamental work of Stokes, we expect a harmonic structure to the higher harmonics we do not have a similar theoretical basis, to arbitrary order, for forces on a column. Recent work [5,11], as well as unpublished work from the De-Risk project [20], does suggest that this may be a good model for non-breaking waves on columns. Clearly for breaking waves the physics is strongly non-linear and a model based on powers of some linear timeseries will not be appropriate.…”

Section: Focussed Wave-groupsmentioning

confidence: 97%

Application of Phase Decomposition to the Analysis of Random Time Series From Wave Basin Tests

Adcock

Tang

Bremer

et al. 2019

Volume 9: Rodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium On

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Many ocean engineering problems involve bound harmonics which are slaved to some underlying assumed close to linear time series. When analyzing signals we often want to remove the bound harmonics so as to "linearise" the data or to extract individual bound harmonic components so that they may be studied. For even moderately broadbanded systems filtering in the frequency domain is not sufficient to separate components as they overlap in frequency. One way to overcome this difficulty is to use input signals with the same linear envelope but with different phases and then use simple addition and subtraction of the resulting signals to extract different harmonics. This approach has been established for the analysis of wave groups. In this paper we examine whether this approach can be used on random time series as well. We analyse random wave time series of wave elevation from the towing tank in Shanghai Jiao Tong University and force measurements on a cylinder taken in the Kelvin tank at the University of Strathclyde. * Also Visiting Prof. University of Oxford. In the open ocean we have no control over the phase of

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DeRisk — Accurate Prediction of ULS Wave Loads. Outlook and First Results

Cited by 25 publications

References 17 publications

Detailed force modelling of the secondary load cycle

Detailed force modelling of the secondary load cycle

Investigation of the effect of the bed slope on extreme waves using First Order Reliability Method

Application of Phase Decomposition to the Analysis of Random Time Series From Wave Basin Tests

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