Results 81 to 90 of about 602 (159)

Numerical Simulation of Caisson-Supported Offshore Wind Turbines Involving Uniform Liquefiable Sand Layer

, 2022
In this research, a series of the non-linear finite element (FE) analyses was conducted to analyze the influence of the contact pressure caused by the offshore wind turbine and motion characteristics on the settlement pattern and seismic demand of the ...
Ibsen, Lars Bo, Nguyen, Duy Manh, Palacios, Alfonso Estepa, Barari, Amin, Markovic, Vladimir, Farahani, Sina; id_orcid   +5 more
core   +1 more source

Semi-Active Structural Control of Offshore Wind Turbines Considering Damage Development

Journal of Marine Science and Engineering, 2018
High flexibility of new offshore wind turbines (OWT) makes them vulnerable since they are subjected to large environmental loadings, wind turbine excitations and seismic loadings.
Arash Hemmati, Erkan Oterkus
doaj   +1 more source

A reliability-constrained optimisation framework for offshore wind turbine support structures

International Journal of Sustainable Energy
A new approach that links finite element analysis (FEA) and a genetic algorithm (GA) with Monte Carlo simulation (MCS) for the reliability-constrained optimal design of offshore wind turbine (OWT) support structure is presented.
Mohammad Rezvanipour, Athanasios Kolios, Peyman Amirafshari, Lin Wang   +3 more
doaj   +1 more source

Application of an Eddy Current-Tuned Mass Damper to Vibration Mitigation of Offshore Wind Turbines

Energies, 2018
Offshore wind turbine (OWT) structures are highly sensitive to complex ambient excitations, especially extreme winds. To mitigate the vibrations of OWT structures under windstorm or typhoon conditions, a new eddy current with tuned mass damper (EC-TMD ...
Jijian Lian, Yue Zhao, Chong Lian, Haijun Wang, Xiaofeng Dong, Qi Jiang, Huan Zhou, Junni Jiang   +7 more
doaj   +1 more source

Onsite installation of floating offshore wind turbines utilizing a low-height lifting mechanism

The offshore wind turbines are exposed to challenging environments during the installation phase. The installation costs of an offshore wind park will be a substantial part of the project's total capital expenditures.
Ataei, Behfar
core   +1 more source

Superelement approach in fully coupled offshore wind turbine simulation: Influence of the detailed support structure modelling on simulation results for a 5-MW turbine on a tripod substructure

, 2022
S.711-718Fatigue design and certification of offshore wind turbines (OWT) is performed using aero-servo-hydro-elastic time domain simulations. So far, the local flexibility of the joints in branched OWT support structures has been neglected in those ...
Vorpahl, F.R., Busmann, H.-G., Kleinhansl, S., Strobel, M.   +3 more
core  

Experimental investigation and welding modelling of improved fatigue TMCP steels for Offshore Wind Turbine (OWT) support structures

With offshore wind deployment accelerating, thick-section steel structures must be reliable, weldable, and economically manufactured. Thermo-mechanically controlled processed (TMCP) steels, such as S355ML, are widely adopted for offshore wind turbine (OWT) support structures (e.g., monopiles and transition pieces) because they combine high strength ...
openaire   +1 more source

Behavior Analysis of a Bucket Foundation with an Offshore Wind Turbine during the In-Water Sinking Process

Journal of Marine Science and Engineering
To enhance the safety of the in-water sinking operation for an integrated system, including a bucket foundation (BF), tower, and rotor nacelle assembly (RNA), in complex marine environmental conditions, a model test of in-water sinking for an offshore ...
Fangdi Ye, Jijian Lian, Tianrun Xiao, Dongzhi Xiong, Haijun Wang, Yaohua Guo, Nan Shao   +6 more
doaj   +1 more source

Generic framework for the reliability assessment of ageing offshore wind turbine jacket support structures. [PDF]

, 2020
Wind Europe annual report for 2019 shows that a significant amount of installed offshore wind turbines will reach their design service life in the next decade.
Ivanhoe, Oribi Richard
core  

On the implications of advanced monopile design methodologies in offshore wind turbines [PDF]

, 2017
The design of Offshore Wind Turbines (OWT) is a complex process involving several stages: wind turbine selection, tower and sub-structure design, as well as foundation design and installation.
Abadias Gomez, D, Potts, DM, Zdravkovic, L, Taborda, DMG   +3 more
core