The prevalence of multi-rotor drones has increased dramatically in recent years, but in headwinds, they pitch upwards unpredictably. Engineers from Tohoku University, Japan, have shown that angling the rotor blades of a quad-rotor ...
Engineering
Feb 9, 2018
0
33
Wind turbines have a design life of 20 years. The rotor blades must be regularly inspected at least once every four years to verify their structural integrity. This type of work is performed by industrial climbers. But the ...
Engineering
Dec 1, 2017
0
10
An algorithm that helps engineers design better helicopters may help astronomers more precisely envision the formation of planets and galaxies.
Astronomy
Oct 12, 2017
3
26
Thanks to the innovative radar scanner from the Fraunhofer Institute for Applied Solid State Physics IAF, defects in the material composition of the wind turbine blades can now be detected with far greater accuracy and visualized ...
Engineering
Apr 10, 2017
0
9
Offshore wind turbines are becoming ever larger, and the transportation, installation, disassembly and disposal of their gigantic rotor blades are presenting operators with new challenges. Fraunhofer researchers have partnered ...
Energy & Green Tech
Oct 4, 2016
0
1
A new design for gigantic blades longer than two football fields could help bring offshore 50-megawatt (MW) wind turbines to the United States and the world.
Energy & Green Tech
Jan 28, 2016
18
103
A thin coating of graphene nanoribbons in epoxy developed at Rice University has proven effective at melting ice on a helicopter blade.
Nanomaterials
Jan 25, 2016
2
1416
Wind turbines deliver environmentally friendly electricity. Yet the fiber-reinforced plastics often used in very large rotor blades are almost impossible to recycle. Not so with steel blades: since these are composed of steel, ...
Engineering
May 7, 2015
9
39
In very cold climate zones, the wind can blow with tremendous force. But wind turbines have rarely been built in these regions up to now. The risk of ice formation on the rotor blades is just too high. But now, an energy-efficient ...
Engineering
Dec 1, 2014
0
0
Siemens has created a special mechanism for mounting its 75-meter-long rotor blades for offshore wind farms. The lifting system makes assembly work safer and lets construction take place at higher wind speeds than was previously ...
Engineering
Sep 25, 2014
0
1
