Comparison of blade loads of fixed and free yawing wind turbine [PDF]
The self regulating composite bearingless wind turbine utilizes an automatic pitch control concept and a completely unrestrained yawing degree of freedom.
Bielawa, R. L., Cheney, M. C.
core +1 more source
Effects of Hold Time on the Elevated Temperature Fatigue Crack Growth Behavior of Alloy 247LC‐DS
ABSTRACT Creep–fatigue crack growth (CFCG) experiments were performed at 850°C and 950°C on nominally 12.70‐mm‐thick compact‐type specimens of alloy 247LC‐DS, a Ni‐base superalloy. The loading cycles consisted of trapezoidal waveforms with hold times of 2 and 20 min at the maximum force.
Zachary B. Towner +5 more
wiley +1 more source
ABSTRACT In this study, the influence of resin cross‐link density on thermomechanical properties and fatigue behavior of polyurethane resins and glass fiber‐reinforced polyurethane (PUR‐GFRP) composites was investigated. This material is a candidate for renewable energy applications like rotor blades in wind turbines.
Martin Demleitner +5 more
wiley +1 more source
Performance of a steel spar wind turbine blade on the Mod-0 100 kW experimental wind turbine [PDF]
The performance and loading of a large wind rotor, 38.4 m in diameter and composed of two low-cost steel spar blades were examined. Two blades were fabricated at Lewis Research Center and successfully operated on the Mod-0 wind turbine at Plum Brook. The
Keith, T. G., Jr. +2 more
core +1 more source
Dynamic blade loading in the ERDA/NASA 100 kW and 200 kW wind turbines [PDF]
Dynamic blade loads, including aerodynamic, gravitational, and inertial effects, are presented for two large horizontal-axis wind turbines: the ERDA-NASA 100 kW Mod-0 and 200 kw Mod-0A wind power systems.
Janetzke, D. C. +2 more
core +1 more source
RESEARCH ON STRUCTURAL DESIGN OF 5 MW VERTICAL AXIS WIND TURBINE
Vertical axis wind turbines have gradually become a research hotspot due to their ease of scalability, but the research involving structural aspects is relatively limited.Therefore, a blade and strut composite layup design solution was proposed to meet ...
ZHU Haibo +4 more
doaj
Description of the 3 MW SWT-3 wind turbine at San Gorgonio Pass, California [PDF]
The SWT-3 wind turbine, a microprocessor controlled three bladed variable speed upwind machine with a 3MW rating that is presently operational and undergoing system testing, is discussed.
Rybak, S. C.
core +1 more source
Thermal-stress analysis for wood composite blade [PDF]
The thermal-stress induced by solar insolation on a wood composite blade of a Mod-OA wind turbine was investigated. The temperature distribution throughout the blade (a heat conduction problem) was analyzed and the thermal-stress distribution of the ...
Fu, K. C., Harb, A.
core +1 more source
Multiclass Dataset for Intelligent Detection of Wind Turbine Blade Defects Using Drone Imagery. [PDF]
Ji L, Cheng J, Wu S.
europepmc +1 more source
CEA-DETR: A Multi-Scale Feature Fusion-Based Method for Wind Turbine Blade Surface Defect Detection. [PDF]
Luo X, Wang R, Zhang J, Zeng J, Cai X.
europepmc +1 more source

