Results 91 to 100 of about 3,945 (233)

[Report of] Specialist Committee V.4: ocean, wind and wave energy utilization

, 2009
The committee's mandate was :Concern for structural design of ocean energy utilization devices, such as offshore wind turbines, support structures and fixed or floating wave and tidal energy converters. Attention shall be given to the interaction between
Argyriadis, K., Fonseca, N., Le Boulluec, M., Liu, P., Nielsen, F.G., Sirkar, J., Suzuki, H., Tarp-Johansen, N.J., Turnock, S.R., Waegter, J., Zong, Z.   +10 more
core  

Numerical study on long-term monopile foundation response

Marine Georesources & Geotechnology, 2017
ABSTRACTThis paper analyzes the long-term monopile foundation that undergoes numerous mechanical cycles. The semiempirical scheme is adopted to involve a mechanical constitutive model to extract stress and strains at the first cycle and polynomial-type strain accumulation functions to track the progressive plastic deformation. In particular, the strain
Chong, Song-Hun, Pasten, C.
openaire   +2 more sources

Numerical Simulation of Seabed Response Around Monopile Under Wave–Vibration

Journal of Marine Science and Engineering
Monopile foundation is an important foundation form for offshore wind turbines, and the stability of the seabed around it is affected by the combined effects of wave and pile vibration.
Hongyi Du, Dunge Wang, Jiankang Hou, Ziqin Yu, Ze Liu, Yongzhou Cheng   +5 more
doaj   +1 more source

Equilibrium Scour-Depth Prediction around Cylindrical Structures [PDF]

, 2017
Offshore gravity base foundations (GBFs) are often designed with complex geometries. Such structures interact with local hydrodynamics, creating an adverse pressure gradient that is responsible for flow and scour phenomena, including the bed shear stress
Harris, JM, Simons, RR, Tavouktsoglou, NS, Whitehouse, RJS   +3 more
core   +1 more source

Numerical evaluation of the soil behavior during impact driving of pipe-piles [PDF]

, 2019
During the impact driving of pipe-piles, the soil is influenced in different ways including the void ratio, stress distribution, and plugging formation.
Aubram, Daniel, Bakroon, Montaser, Daryaei, Reza, Rackwitz, Frank   +3 more
core   +1 more source

A novel post-weld treatment using nanostructured metallic multilayer for superior fatigue strength. [PDF]

Sci Rep, 2023
Brunow J, Spalek N, Mohammadi F, Rutner M.   +3 more
europepmc   +1 more source

The Effect of Lateral Loading Parameters on Monopile Behavior Based on Physical Modeling

نشریه مهندسی دریا, 2019
Monopiles are the most common type of foundation for offshore wind turbines (OWT). Monopiles have been used in more than 80% of the offshore wind turbines.
Mahdi Shahidikhah, Majid Moradi, Alireza Khamseh   +2 more
doaj  

Effect of Combined Wave and Current Loading on the Hydrodynamic Characteristics of Double-Pile Structures in Offshore Wind Turbine Foundations

Energies
The multi-pile structure is a common and reliable foundation form used in offshore wind turbines (such as jacket-type structures, etc.), which can withstand hydrodynamic loads dominated by waves and water flow, providing a stable operating environment ...
Yongqing Lai, Li Cai, Xinyun Wu, Bin Wang, Yiyang Hu, Yuwei Liang, Haisheng Zhao, Wei Shi   +7 more
doaj   +1 more source

Foundation Types of Fixed Offshore Wind Turbine

한국해양공학회지
Offshore wind turbines are supported by various foundations, each with its considerations in design and construction. Gravity, monopile, and suction bucket foundations encounter geotechnical issues, while jacket and tripod foundations face fatigue ...
Yun Jae Kim, Jin-wook Choe, Jinseok Lim, Sung Woong Choi   +3 more
doaj   +1 more source

Comparative Analysis of Scour in Riprap-Protected Monopiles and Hybrid Foundations

Journal of Marine Science and Engineering
As the demand for new sustainable solutions for harvesting energy increases, the offshore energy sector focuses on optimising well-established state-of-the-art solutions while striving for new innovative approaches.
João Chambel, Tiago Fazeres-Ferradosa, Mario Welzel, Francisco Taveira-Pinto, Pedro Lomónaco   +4 more
doaj   +1 more source