Results 21 to 30 of about 6,479 (231)
Active vibration control of a monopile offshore structure [PDF]
Journal of Structural Control, 1999 AbstractIn the Danish part of the North Sea monopile platforms with a cylindrical shaft have been used at the exploitation of marginal fields. In the paper a new principle for active vibration control of such structures is suggested. The principle is based on a control of the boundary layer flow around the cylinder of the platform, so the drag force in
Nielsen, Søren R. K. +2 more
openaire +2 more sources
A comparative study of multiple-criteria decision-making methods under stochastic inputs [PDF]
, 2016 This paper presents an application and extension of multiple-criteria decision-making (MCDM) methods to account for stochastic input variables. More in particular, a comparative study is carried out among well-known and widely-applied methods in MCDM ...
Kolios, Athanasios +3 more
core +4 more sources
Numerical Analysis of the Deformation Performance of Monopile under Wave and Current Load
Energies, 2020 The research on the deformation mechanism of monopile foundation supporting offshore wind turbines is significant to optimize the design of a monopile foundation under wave and current load.
Libo Chen +6 more
doaj +1 more source
Wind Energy, 2023 Offshore wind turbines play a critical role as a renewable energy source and are experiencing continuous growth in usage. Both the design and implementation phases of constructing these structures present difficulties.
Sacit Sarımurat
doaj +1 more source
Fatigue crack growth rates for offshore wind monopile weldments in air and seawater: SLIC inter-laboratory test results [PDF]
, 2016 The majority of fatigue crack growth (FCG) data sets available on steels in air and seawater environments are several decades old and may not be appropriate for structural integrity assessment of offshore wind turbine foundations, which are fabricated ...
Brennan, Feargal P. +2 more
core +2 more sources
Scour Reduction by Collars around Offshore Monopiles [PDF]
Scour and Erosion, 2010 Excessive scour is a threat to the stability of monopile foundations, e.g. in offshore windparks. Particularly in shallow waters with strong tidal currents such as the North Sea, protection against excessive scouring is required. Commonly applied scour protection consists of loose rock. Little is known about alternative scour protection measures.
De Sonneville, B. +2 more
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The Geotechnical Design Reliability of Offshore Wind Monopiles [PDF]
LithosphereOffshore wind energy is expected to become one of the major clean energy sources to combat climate change. Monopile foundations play a central role in shallow water offshore wind development.
Chengliang Ji +4 more
doaj +1 more source
Tsunami-induced scour around monopile foundations [PDF]
Coastal Engineering, 2017 Abstract A fully-coupled (hydrodynamic and morphologic) numerical model is presented, and utilized for the simulation of tsunami-induced scour around a monopile structure, representative of those commonly utilized as offshore wind turbine foundations at moderate depths i.e. for depths less than 30 m.
Bjarke Eltard Larsen +3 more
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Monopiles subjected to uni- and multi-lateral cyclic loading [PDF]
, 2017 Offshore wind turbines are subjected to significant environmental loads from a combination of current, wind and wave action. Under such conditions, the directions of these environmental loads vary over the service life of the structure and therefore the ...
Arthur, Iain +9 more
core +1 more source
Advances in Mechanical Engineering, 2013 Offshore wind power provides a new kind of green energy. This paper presents a comparison study on the structural properties of monopile and tripod wind-turbine support structures, which are used extensively in offshore wind farms.
Da Chen +3 more
doaj +1 more source