Experimental modal analysis of aeroelastic tailored rotor blades in different boundary conditions

ByWindmills Tech Editor

Janto Gundlach, Engineer, mechanical engineering at the German Aerospace Center

Wind Energy and High Performance Computing | Wind Turbine Aerodynamics | Wind Turbine Wakes | Wind Turbines

Wind Turbines and Wind Power Plants

ByWindmills Tech Editor

Video:Wind Turbines and Wind Power Plants Slides

Gearbox | Wind Turbine Technician Guides | Wind Turbines

Wind Turbine Gearbox : Cooling

ByWindmills Tech Editor

Heat is generated during the operation of the gearbox due to friction between the solid surfaces of the moving parts. Most of the heat is generated by the friction between the gear teeth, and between the rollers and rings of the bearings. Depending on the type of the engaging gears, the input torque and speed,…

Basics | Wind Turbine Technician Guides | Wind Turbines | Yaw Control

Wind Turbine Yaw Movements and Gyroscopic Forces

ByWindmills Tech Editor

Video : Wind Turbine Yaw Movements and Gyroscopic Forces Under normal operational conditions, yaw movement may occur when the rotor is stopped or when it is turning. When the rotor is stopped, the force applied by the yaw drive needs to overcome only the inertia of the nacelle and the frictional forces at the yaw…

Wind Turbine Noise | Wind Turbines

Real-World Noise Measurements – Emission and Immission

ByWindmills Tech Editor

Pre- and post-construction measurements Sound power measurements according to IEC 61400-11 Tomas Hansen, Team Leader, Noise and Vibration Measurements, Siemens Wind Power A/S, Denmark The French approach to noise assessment Far field effects like amplitude modulation, tonality and impulses

Wind Turbine Technician Guides | Wind Turbines | Yaw Control

Wind Turbine Yaw Controls: Part 2

ByWindmills Tech Editor

Let’s take a closer look at some of the sensors used in the yaw control system. Potentiometers,encoders and ultrasonic sensors may be used to detect wind direction. A potentiometer is a variable resistor consisting of a resistive strip, 3 terminals, and a movable wiper. The movable wind vane is connected to the wiper. As the…

Wind Turbines | Materials and Manufacturing

Wind Turbine Blades Trash Solution

ByWindmills Tech Editor

Wind turbines have a service life of about 20 to 25 years, after which they need to be replaced with newer and more efficient models. This means that there is a growing amount of old and obsolete wind turbines that need to be disposed of. While most of the components of a wind turbine, such…

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