Long term effect of operating loads on large monopile-supported offshore wind turbines in sand
Offshore wind turbines (OWTs) are known to experience modal property and foundation tilt
changes during operation. These may negatively influence their serviceability and can lead …
changes during operation. These may negatively influence their serviceability and can lead …
Modelling damping sources in monopile‐supported offshore wind turbines
C Chen, P Duffour - Wind Energy, 2018 - Wiley Online Library
Vibration damping in offshore wind turbines is a key parameter to predict reliably the
dynamic response and fatigue life of these systems. Damping in an offshore wind turbine …
dynamic response and fatigue life of these systems. Damping in an offshore wind turbine …
Fatigue reliability of large monopiles for offshore wind turbines
J Velarde, C Kramhøft, JD Sørensen, G Zorzi - International journal of …, 2020 - Elsevier
Upscaling of traditional monopiles to support larger offshore wind turbines introduces fatigue-
related design challenges. The design becomes mainly driven by wave-induced fatigue …
related design challenges. The design becomes mainly driven by wave-induced fatigue …
Continuous dynamic monitoring of an onshore wind turbine
G Oliveira, F Magalhães, Á Cunha, E Caetano - Engineering Structures, 2018 - Elsevier
Current utility-scale wind turbines are highly dynamic systems excited by a large variety of
loading sources. The proper operation of wind turbines thus requires a complete knowledge …
loading sources. The proper operation of wind turbines thus requires a complete knowledge …
Evaluation of damping estimates by automated operational modal analysis for offshore wind turbine tower vibrations
A Bajrić, J Høgsberg, F Rüdinger - Renewable Energy, 2018 - Elsevier
Reliable predictions of the lifetime of offshore wind turbine structures are influenced by the
limited knowledge concerning the inherent level of damping during downtime. Error …
limited knowledge concerning the inherent level of damping during downtime. Error …
[HTML][HTML] Critical assessment of hydrodynamic load models for a monopile structure in finite water depth
The response from steep and breaking waves for a monopile structure is investigated by
analysis of experimental results and by application of numerical models for six irregular sea …
analysis of experimental results and by application of numerical models for six irregular sea …
[HTML][HTML] Probabilistic analysis of offshore wind turbines under extreme resonant response: Application of environmental contour method
Offshore wind turbines can exhibit dynamic resonant behavior due to sea states with wave
excitation frequencies coinciding with the structural eigenfrequencies. In addition to …
excitation frequencies coinciding with the structural eigenfrequencies. In addition to …
Numerical analysis of the long-term performance of offshore wind turbines supported by monopiles
H Ma, J Yang, L Chen - Ocean Engineering, 2017 - Elsevier
Offshore wind turbines (OWT) are often supported on large-diameter monopiles and
subjected to cyclic loading such as wind and wave actions. The cyclic loading can lead to an …
subjected to cyclic loading such as wind and wave actions. The cyclic loading can lead to an …
[HTML][HTML] Estimation of natural frequencies and damping using dynamic field data from an offshore wind turbine
K Norén-Cosgriff, AM Kaynia - Marine Structures, 2021 - Elsevier
The dynamic characteristics of offshore wind turbines are heavily affected by environmental
loads from wave and wind action and nonlinear soil behaviour. In the design of the monopile …
loads from wave and wind action and nonlinear soil behaviour. In the design of the monopile …
Stall-induced vibrations analysis and mitigation of a wind turbine rotor at idling state: Theory and experiment
C Chen, J Zhou, F Li, E Zhai - Renewable Energy, 2022 - Elsevier
With the development of wind turbine manufacturing technology, the wind turbine rotor is
facing more design challenges for exposing to complex environmental conditions and …
facing more design challenges for exposing to complex environmental conditions and …