Searched for: mods_originInfo_publisher_s%3A%22Faculty%255C+of%255C+Engineering%255C+of%255C+University%255C+of%255C+Porto%22
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Van der Male, P. (author), Van Dalen, K.N. (author), Metrikine, A. (author)
In determining wind forces on wind turbine blades, and subsequently on the tower and the foundation, the blade response velocity cannot be neglected. This velocity alters the wind force, which depends on the wind velocity relative to that of the blades This blade response velocity component of the wind force is commonly referred to as added...
conference paper 2014
document
Lu, T. (author), Metrikine, A. (author)
A load moving on a center-fixed ring and the reciprocal problem, namely a rotating ring subjected to a moving load have been used in several works to study the tire dynamics. In contrast, very few papers exist in which the ring model has been used in order to study the dynamics of a train wheel. In this paper, a thin ring model is introduced to...
conference paper 2014
document
Van Dalen, K.N. (author), Metrikine, A. (author), Tsouvalas, A. (author)
Transition radiation is emitted when a perturbation source (e.g., electric charge, mechanical load), which does not possess an inherent frequency, moves along a straight line at a constant velocity in or near an inhomogeneous medium. The phenomenon was described for the first time in electromagnetics, but it is universal from the physical point...
conference paper 2014
document
Versteijlen, W.G. (author), Van Dalen, K.N. (author), Metrikine, A. (author), Hamre, L. (author)
In this contribution, in situ seismic measurements are used to derive the small-strain shear modulus of soil as input for two soil-structure interaction (SSI) models to assess the initial soil stiffness for offshore wind turbine foundations. This stiffness has a defining influence on the first natural frequency of offshore wind turbines (OWTs),...
conference paper 2014
document
Kudarova, A. (author), van Dalen, K.N. (author), Drijkoningen, G.G. (author)
Effective-medium approaches are widely used to model initially heterogeneous systems: it saves computational time. In poroelasticity (two-phase media), it is advantageous to use one-phase effective medium if possible: it simplifies computations even more. In this paper we discuss situations where phase reduction introduces significant inaccuracy...
conference paper 2014
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Nord, T.S. (author), Lourens, E. (author), Oiseth, O. (author), Metrikine, A. (author)
The level-ice forces exerted on a scale model of a compliant bottom founded structure are identified from noncollocated strain and acceleration measurements by means of a joint input-state estimation algorithm. The identification is performed based on two different finite element models: one entirely based on the blueprints of the structure, and...
conference paper 2014
Searched for: mods_originInfo_publisher_s%3A%22Faculty%255C+of%255C+Engineering%255C+of%255C+University%255C+of%255C+Porto%22
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