Results 21 to 30 of about 346 (185)

Fatigue Assessment of Monopile Supported Offshore Wind Turbine under Non-Gaussian Wind Field

open access: yesShock and Vibration, 2021
The vibration of offshore wind turbines caused by external loads is significant, which will cause fatigue damage to offshore wind turbines. Wind load is the main load during the operation period of the wind turbine, and available studies have shown that ...
Bing Li   +3 more
doaj   +1 more source

Evaluation of Soil–Foundation–Structure Interaction for Large Diameter Monopile Foundation Focusing on Lateral Cyclic Loading

open access: yesJournal of Marine Science and Engineering, 2023
In this study, the monotonic and cyclic behavior of an offshore wind turbine with a monopile foundation installed in a sand layer were evaluated in the centrifuge.
Jae-Hyun Kim   +3 more
doaj   +1 more source

A full three‐dimensional model for the estimation of the natural frequencies of an offshore wind turbine in sand

open access: yesWind Energy, 2021
The design of an offshore wind turbine (OWT) founded on a monopile foundation is principally based on dimensioning criteria related to its fundamental frequencies. These frequencies must remain outside the excitation frequencies to avoid resonance.
Philip Alkhoury   +3 more
doaj   +1 more source

Rate effects for monopile foundations

open access: yes, 2022
Monopile pile foundations are the most commonly used support system for offshore wind turbines in Europe. These foundations are subject to lateral loading, which is cyclic in nature, with the loading rate and load eccentricity varying with time. Under extreme conditions, such as the emergency stop of the turbine, yawing or ship impact, transient ...
openaire   +1 more source

An Investigation into the Effect of Scour on the Loading and Deformation Responses of Monopile Foundations

open access: yesEnergies, 2017
Severe foundation scour may occur around monopile foundations of offshore wind turbines due to currents and waves. The so-called p-y curves method is suggested in the existing design recommendations to determine the behavior of monopiles unprotected ...
Wei-Chen Tseng   +2 more
doaj   +1 more source

An assessment of pile driveability analyses for monopile foundations

open access: yes, 2022
Several methodologies to predict the static soil resistance to driving (SRD) available in the literature have found wide use in the offshore industry over the last decades. These range from simple methods that require few soil strength parameters to more advanced semi-empirical methods that correlate the driving resistance to cone penetration test ...
Kourelis, I.   +3 more
openaire   +1 more source

Large Diameter Monopile Pile-Soil Interaction in Sandy Seabed

open access: yes南方能源建设
[Introduction] This paper conducts study based on the design of monopile foundations for offshore wind turbines in sandy seabed, to analyze the influence of drainage conditions on soil-foundation interaction, and compare the initial stiffness of soil ...
Can ZHENG   +3 more
doaj   +1 more source

Configurational Influence Factor Analysis of Offshore Wind Turbine Monopile Foundation

open access: yes南方能源建设, 2019
[Introduction] Facilitated by the advancement of large diameter monopile fabrication and installation capacity, the application of monopile foundation is expanding into deeper water, a study on properties of deep water monopile foundation with different ...
LI Cong, LIU Donghua, WANG Hongqing
doaj   +1 more source

A New Ocean Rock Mass Rating and Its Application to Determine the Ultimate Bearing Capacity of an Offshore Wind Monopile Foundation

open access: yesJournal of Marine Science and Engineering, 2023
Offshore wind power is a new trend in renewable energy development. However, during the operation of offshore wind turbines, the rock-socketed monopile foundation is subjected to long-term cyclic loads, which will cause the seawater to erode the rock ...
Qi Zhang   +5 more
doaj   +1 more source

Modeling Lifetime Performance of Monopile Foundations for Offshore Wind Applications

open access: yesJournal of Geotechnical and Geoenvironmental Engineering, 2023
This paper explores the application of a numerical method for modeling pseudorandom cyclic loading, at very large cycle numbers, to the design of offshore wind turbine foundations. The work expands the development of a novel constitutive modeling framework, the hyper-plastic accelerated ratcheting model (HARM), for which the key constitutive equations ...
Abadie, Christelle   +5 more
openaire   +3 more sources

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