Searched for: subject%3A%22Wave%255C+Loads%22
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Metselaar, Meno (author)
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master thesis 2024
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Jumelet, Daan (author), van Gent, M.R.A. (author), Hofland, Bas (author), Kuiper, C. (author)
Physical model tests have been performed to study static stability of rock-armoured mild slopes. Current stability design formulae for steeper rock-armoured slopes focus on plunging and surging waves. Slopes of 1:6 and milder usually have more spilling breakers which decreases the load. Also, on mild slopes displaced rocks more often remain...
journal article 2024
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van Heest, Martijn (author)
Placed block revetments on dikes are used for the protection of the structure against wave loading. The dimensions of the revetment are determined with empirical relations and design tools. The stability of the design solution needs to be checked by physical flume tests to ensure the safety of the structure. However, these tests can be costly...
master thesis 2023
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Gísladóttir, Lára (author)
Crownwalls are often placed on top of vertical composite breakwaters to reduce overtopping. Adding a seawards facing overhang at the top of crownwalls has successfully reduced overtopping even further without increasing the freeboard of the crownwall. Crownwalls with a fully curved (FC) face are most often used in seawalls where they are...
master thesis 2023
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Castellino, Francesco (author)
One of the main cost drivers of an offshore wind power plant are the support structures of the wind turbines, it is therefore of primary importance to optimize their design. Among the support structures available, the concept most widely adopted is the monopile-based support structure, whose design is often fatigue-driven. Offshore structures...
master thesis 2022
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Grolman, Wouter (author)
The demand for renewable energies is rising due to climate goals and high oil prices. Not only the established renewable sources like wind and solar are interesting to exploit. There is a vast amount of energy stored in the world’s oceans. To harvest this energy, one needs a Wave Energy Converter (WEC). There<br/>are already some prototype WECs...
master thesis 2022
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Witvoet, Martijn (author)
Fatigue lifetime has proven to be a leading design parameter for naval vessels. In the field of fatigue analysis and design of welded joints, two overall methods are distinguished: the temporal and spectral approach. Using empirical models, the spectral approach is typically preferred due to its efficiency, even though damage estimates are...
master thesis 2022
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Luijten, Tim (author)
Starting in the 1930’s, many research projects have been performed with the intent to establish rules, which can be used to design granular, geometrically closed filter structures for hydraulic structures. However, for the vast majority of these research projects, the filter structure was loaded by uniform flow, either in the parallel or...
master thesis 2022
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Li, Zhenhao (author), Tang, Tianning (author), Li, Yan (author), Draycott, Samuel (author), van den Bremer, T.S. (author), Adcock, Thomas A.A. (author)
Abrupt changes in water depth are known to lead to abnormal free-surface wave statistics. The present study considers whether this translates into abnormal loads on offshore infrastructure. A fully non-linear numerical model is used which is carefully validated against experiments. The wave kinematics from the numerical model are used as...
journal article 2022
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van Gorsel, Jan (author)
Lighthouses have guided seafarers for centuries and still play an essential role in navigating marine vessels and bringing them to safe harbours. With climate change, the already harsh ocean environment may become more severe. It is expected that future wave conditions can compromise the structural integrity of the lighthouses with their violent...
master thesis 2021
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Bakker, W. (author), Hofland, Bas (author), de Almeida Sousa, E. (author), Oldenziel, G. (author), Overmars, E.F.J. (author)
In this paper the development of a high-power pulsed LED line light and its use to apply particle image velocimetry (PIV) during wave impact measurements are described. An electrical circuit that generates high-current pulses is designed and built, which is used to overdrive a number of commercially available LEDs. The limit for this...
journal article 2021
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Dassanayake, Darshana T. (author), Antonini, A. (author), Pappas, Athanasios (author), Raby, Alison (author), Brownjohn, James Mark William (author), D’Ayala, Dina (author)
The survivability analysis of offshore rock lighthouses requires several assumptions of the pressure distribution due to the breaking wave loading (Raby et al. (2019), Antonini et al. (2019). Due to the peculiar bathymetries and topographies of rock pinnacles, there is no dedicated formula to properly quantify the loads induced by the breaking...
journal article 2021
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Meinen, Nadieh Elisabeth (author), Maria, Raphaël Daniël Johannes (author), Hofland, Bas (author), Jonkman, Sebastiaan N. (author)
Vertical slender hydraulic structures such as sluices, navigation locks, or storm-surge barriers are often dynamically loaded by waves. For a safe and economic design, an accurate description of the wave loads is needed. A widely used formula for this purpose is the Goda–Takahashi wave load formula (GT). It was derived for the assessment of...
journal article 2020
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Raby, A. C. (author), Antonini, A. (author), Pappas, A. (author), Dassanayake, D. T. (author), Brownjohn, J. M.W. (author), D'Ayala, D. (author)
Lighthouses situated on exposed rocky outcrops warn mariners of the dangers that lurk beneath the waves. They were first constructed when approaches to wave loading and structural response were relatively unsophisticated, essentially learning from previous failures. Here, we chart the evolution of lighthouses on the Wolf Rock, situated...
journal article 2019
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van Vledder, G.P. (author), Hofland, Bas (author), Tuin, Henry (author), van Maris, Bob (author)
This paper describes a numerical evaluation of design rules for the determination of wave loads of non-breaking waves on vertical structures. Design guidelines were proposed by Sainflou (1928) and Goda (1974). These guidelines use geometric parameters of the structure, an incident wave height and a wave period. In practice (cf. CERC, 1984), a...
conference paper 2019
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Dassanayake, Darshana T. (author), Raby, Alison (author), Antonini, A. (author)
Estimation of impulsive wave loading on a cylinder upon a shoal, such as an offshore rock lighthouse constructed on a partially emerged offshore rock with a steep foreshore, poses a unique challenge to marine structural engineers. Large and small scale experimental investigations are the most feasible methods to study this phenomena. However,...
conference paper 2019
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BAKALONI, LENA (author)
Wind turbines constitute a sustainable and effective solution for the production of energy using wind power. Offshore wind turbines are becoming of special interest. However, their design poses great challenges, since an offshore structure is subjected to combined wind and wave dynamic loading that is characteristic of the installation site and...
master thesis 2018
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Hendriksen, Eduard (author)
A project is under way to replace the ferry crossings in Norway's highway E39 with fixed links, such as highway bridges or tunnels. This thesis research is on the crossing located at the Sognefjord, the widest and deepest of the straight crossings in the E39 highway. Previous thesis projects at IV-Consult have yielded a design for a floating...
master thesis 2018
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van Maris, Bob (author)
During the design process of the new sea lock in IJmuiden the design wave conditions were described by a bimodal wave spectrum. With a spectral calculation method it was observed that a small low frequency component leaded to a large influence in the force spectrum. This observation served as the starting point for this thesis, where different...
master thesis 2018
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Kiskiras, Konstantinos (author)
Jumbo is a heavy lift, shipping, offshore transportation and installation contractor. Jumbo is an experienced company in ocean transportation for more than 45 years. Since 2003, building on their heavy lift capability, Jumbo is rapidly getting involved in the offshore installation market.<br/><br/>Jumbo normally uses dynamic positioning systems...
master thesis 2017
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