Searched for: subject%3A%22Soil%255C+damping%22
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Sinke, Joël (author)
During the design phase of a foundation installation aspects are easily overlooked. When this aspect is overlooked a foundation element risks not reaching its design depth or getting damaged during the installation process. As a result significant delays and/or costs could occur. A driveability study gives insight in the installation aspects of...
master thesis 2020
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Kofou, Stavroula (author)
The offshore wind industry has been extended over the last years in areas of active seismicity, such as East Asia, where the design of offshore wind turbines becomes significantly challenging, because albeit aerodynamic and hydrodynamic loads mainly act on the offshore structures, earthquake could emerge as a potentially enormous threat. The...
master thesis 2019
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Versteijlen, W.G. (author)
Offshore wind generated electricity is currently one of the most promising sources of energy to contribute in creating a sustainable global energy mix. The latter is essential for minimising the detrimental impact of human-induced accelerated climate change. The cost of offshore wind power has strongly decreased over the past years due to ...
doctoral thesis 2018
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Versteijlen, W.G. (author), de Oliveira Barbosa, J.M. (author), van Dalen, K.N. (author), Metrikine, A. (author)
A method is presented to accurately capture the 3D interaction phenomena of a foundation pile embedded in soil, in a computationally efficient non-local 1D model. It is shown how to extract the global stiffness kernels from simulations with the 3D inhomogeneous continuum, and implement them in a 1D non-local Winkler-type model that can...
journal article 2018
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De Santis, Greta (author)
A realistic description of soil-foundation interaction in offshore wind turbines (OWT) under environmental loading requires deep understanding, and modelling capabilities for, saturated soil behaviour in presence of cyclic loads and pore pressure effects. <br/>This research investigates the dynamic energy dissipation occurring in the soil under...
master thesis 2017
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Kementzetzidis, Evangelos (author)
In recent years, offshore wind is becoming an increasingly growing market in Europe. Many resources are allocated towards ensuring its sustainable progress while one of the biggest uncertainties encountered lays in the offshore wind turbine's (OWT) foundations. In Europe, monopiles are the most widely adopted solution to found such structures in...
master thesis 2017
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Versteijlen, W.G. (author), Renting, F.W. (author), van der Valk, P. L.C. (author), Bongers, J. (author), van Dalen, K.N. (author), Metrikine, A. (author)
In an attempt to decrease the modelling uncertainty associated with the soil-structure interaction of large-diameter monopile foundations, a hydraulic shaker was used to excite a real-sized, in-situ monopile foundation in stiff, sandy soil in a near-shore wind farm. The response in terms of natural frequency and damping of a pile-only system...
journal article 2017
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Versteijlen, W.G. (author), Renting, F.W. (author), Valk, van der, P.L.C. (author), Bongers, J. (author), van Dalen, K.N. (author), Metrikine, A. (author)
It is widely accepted that the initial stiffness derived with the p-y methodology as prescribed by the American Petroleum Institute does not capture the true small-strain stiffness for rigidly behaving piles. We present an alternative method, capturing the 3D effects in the soil-pile interaction, in which the soil is characterized with in-situ...
journal article 2017
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Raikar, P. (author)
In pursuit of saving mother nature, man has been extending his boundaries to find renewable sources of energy. Wind being one of them, has been exploited in the past years with offshore wind gaining high popularity in the recent years. Owing to the high capital costs of the offshore wind sector, research has been directed to focus on technology...
master thesis 2016
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Armstrong, M. (author)
Non-invasive in-situ measurements can determine the soil properties in an undisturbed way, providing a more accurate characterization of the soil stiffness and damping. This report focuses on the multichannel analysis of surface waves (MASW) technique. The measured dispersion of a propagating seismic wave is used to characterize the variation of...
master thesis 2016
Searched for: subject%3A%22Soil%255C+damping%22
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