Results 41 to 50 of about 3,387,018 (354)
Cage Loads of Wind Turbine Blade Bearing
Journal of Physics: Conference Series, 2020 Abstract Slewing bearings of wind turbine blades pitch system allow the required oscillation while transferring complex dynamical loads from the rotor blades towards the hub. Most common for this application are double rowed four-point contact ball bearings consisting of two rings and two rolling element sets either equipped with a ring ...
Büscher, Max Karim +3 more
openaire +2 more sources
Alleviation of unbalanced rotor loads by single blade controllers [PDF]
, 2009 A novel approach to reducing the unbalance rotor loads by pitch control is presented in this paper. Each blade has its own actuator, sensors and controller.
Dominguez, S. +2 more
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FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Applied SciencesSince fan blades are exposed to fatigue, and in some cases harsh loading conditions, they may exhibit fracture failures due to crack propagation, resulting in significant losses.
Mariem Ben Hassen +2 more
doaj +1 more source
Metals, 2021 Axial compressor blades with a deformed initial torsion angle caused by aerodynamic excitation resonated at the working speed and changed the rule of fatigue damage accumulation.
Xi Fu +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
Applied Sciences, 2019 Predicting the extreme loads in power production for the preliminary-design of large-scale wind turbine blade is both important and time consuming. In this paper, a simplified method, called Particle Swarm Optimization-Extreme Load Prediction Model (PSO ...
Caicai Liao, Kezhong Shi, XiaoLu Zhao
doaj +1 more source
Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
Formation of Sectoral Residual Thermoplastic Tension Fields in Circular Saw Blade
Лесной журнал, 2023 The efficiency of a stationary circular saw is determined by the performance and operational reliability of the woodcutting unit. During operation, the circular saw blade is exposed to a variety of complex loads and thermal conditions.
Vladimir I. Melekhov, Ivan I. Solovev
doaj +1 more source
Variation of loads on a three-bladed horizontal axis tidal turbine with frequency and blade position
Journal of Fluids and Structures, 2018 Sustainable and cost effective design for tidal current turbines requires knowledge of the complex nature of unsteady loads on turbine components including blades, rotor and support structure.
G. Payne +3 more
semanticscholar +1 more source