Results 51 to 60 of about 15,231 (275)

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Environmental impact assessment of wind turbine blades analysis based on life cycle

Shenzhen Daxue xuebao. Ligong ban, 2023
Wind energy is an important renewable energy source with natural 'green' properties. However there may be certain ecological and environmental impacts during the production, manufacturing and installation of wind turbine components.
CAI Xiaoping, DUAN Huabo, MA Yi, LI Qiangfeng, XIE Minghui   +4 more
doaj   +1 more source

The radar signature of the Wind Lens: a less disruptive wind turbine? [PDF]

, 2012
We study the radar signature of a new type of wind turbine, named the Wind Lens. This design includes a flanged shroud around the turbine which concentrates the wind flow past the turbine blades and hence improves the efficiency.
H. Griffiths, Griffiths, Hugh D., T. Matsuura, A. Balleri, A. Al-Armaghany, Al-Armaghany, A., Tong, Kenneth, K. Tong, Balleri, Alessio, Matsuura, Takashi   +9 more
core   +1 more source

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

Advanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome, Lijie Cao, Christoph Somsen, Johannes Boes, René Hesse, Werner Theisen, Gunther Eggeler   +6 more
wiley   +1 more source

Aerodynamic design and analysis of horizontal-axis wind turbine blades [PDF]

MATEC Web of Conferences
Blade design is a fundamental and critical aspect of wind turbine technology. Enhancing the aerodynamic performance of turbine blades remains a key research focus in the field of wind energy.
Qiao Zhongyuan, Binti Che Kar Suriani
doaj   +1 more source

Modeling and Control Analysis of Wind Turbine of Two Bladed and Three Bladed Wind Turbine Systems

TELKOMNIKA Indonesian Journal of Electrical Engineering, 2015
<p>The wind power industry is currently the fastest growing renewable energy sector throughout the world. the aim of this paper is to implement the mathematical model and simulations torque control of two bladed and three bladed wind turbine systems by changing power coefficient, tip speed ratio and pitch angle values for different wind speeds.To
L V Suresh Kumar, Chintu Jaganmohanarao, Sai Lakshmi B   +2 more
openaire   +2 more sources

Smart and Sustainable Sizing: Investigating the Sensing Behavior of Glass Fabrics Coated With Waterborne Polyurethane/Graphene Dispersions

Advanced Materials Technologies, EarlyView.
Waterborne polyurethane/graphene formulations are developed as piezoresistive coatings on glass fabric to enable flexible strain sensing. The graphene‐enabled conductive network provides a stable electromechanical response under cyclic compression. The coating demonstrates reliable pressure‐dependent resistance changes, highlighting its potential for ...
Vishnu Vijayan Pillai, Premika Govindaraj, Sai Aditya Pradeep, Olivia Sequerth, Srikanth Pilla, Franz Konstantin Fuss, Peter Kingshott, Nishar Hameed, Nisa V Salim   +8 more
wiley   +1 more source

Unsteady simulation of flow in micro vertical axis wind turbine [PDF]

, 2010
Though wind turbines and windmills have been used for centuries, the application of aerodynamics technology to improve reliability and reduce costs of wind-generated energy has only been pursued in earnest for the past 40 years.
BOIS, Gérard, BAYEUL-LAINÉ, Annie-Claude   +1 more
core  

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source