Results 91 to 100 of about 3,629 (222)
Structural Characteristics of Wind Turbines with Different Blade Materials Under Yaw Condition
The uneven distribution of airflow on the blade surface of a yaw wind turbine triggers a complex non-constant flow, resulting in turbine flow field operation disorder, which, in turn, affects the structural field.
Huanran Guo +5 more
doaj +1 more source
Power Quality‐Oriented Multiloop Design of Floating Wind Turbines Pitch Control
ABSTRACT Floating offshore wind turbines (FOWTs) face inherent control limitations in above‐rated operating conditions due to right‐half‐plane zeros in the blade‐pitch‐to‐rotor‐speed dynamics, which restrict achievable control bandwidth and may lead to closed‐loop instability.
Marco De Pascali +5 more
wiley +1 more source
Evaluation of Creep Life and Damage for AISI 304 Under Combined Tension/Torsion Multiaxial Loading
ABSTRACT In the present study, to investigate the effects of temperature and principal stress ratio on the multiaxial creep rupture time of AISI 304 stainless steel, creep tests were conducted under various principal stress ratios at 650°C and 700°C.
Lei He, Takamoto Itoh, Noritake Hiyoshi
wiley +1 more source
Wind energy is a source of renewable energy that can be converted to electricity using a wind turbine. The typical lifespan of a wind turbine is at least 20–25 years.
Mongkol Kaewbumrung +3 more
doaj +1 more source
Comparison of experimental and model‐predicted erosion rates for carbon fibre‐reinforced polymer (CFRP) and glass fibre‐reinforced polymer (GFRP) under low‐velocity (2 m/s) and at varying angles and sand concentrations (0.0, 0.05, 0.4 g/L). The results demonstrate good agreement between experimental data and model predictions across different erosive ...
Ali Al‐Darraji +4 more
wiley +1 more source
The work demonstrates that strategic wall‐thickness grading in diamond triply periodic minimal surface lattices enables precise tuning of deformation and failure behavior under compression. Different gradation patterns guide how and where the structure collapses, improving energy absorption or promoting controlled brittle failure.
Giovanni Rizza +3 more
wiley +1 more source
A Machine Vision Method for Identifying Blade Tip Clearance in Wind Turbines
This paper introduces a machine vision method for measuring the blade tip clearance in a wind turbine. An industrial personal computer (IPC) is installed in the nacelle of the wind turbine to continuously receive video data from a digital camera mounted ...
Le Zhang, Jiadan Wei
doaj +1 more source
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang +7 more
wiley +1 more source
ABSTRACT Fatigue is the most common reliability failure mechanism and has been studied widely since the 19th century. Material specimens are used in laboratory experiments to obtain fatigue test data. An S‐N curve is used to depict the relationship between the stress (or strain) S$$ S $$ and the number of cycles to failure N$$ N $$. Statistical methods
Diaz F. Aksioma +2 more
wiley +1 more source
Eagles see ahead. Now our model does too. By modeling how eagles respond to terrain and wind conditions in their line of sight, we can predict where they'll fly in the next 3 min with 3× better accuracy than current methods—protecting eagles while maximizing energy production.
Rimple Sandhu +9 more
wiley +1 more source

