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Why do 100 w wind turbine blades require composite materials

Mar 07, 2019

The wind propels the 100 w wind turbine propeller-like blades around the rotor, which in turn drives the generator to generate electricity. In order to convert the kinetic energy of wind into electrical energy, wind turbine blades must withstand wind, gravity and centrifugal loads. The number of blades can be increased or decreased depending on whether the wind turbine uses a traditional horizontal axis or a new vertical axis design.

 

The 100 w wind turbine blades must be wide enough to function, so engineers are required to carefully select the right material, both light and strong. These factors are the key to the blade's structural load effects, resistance to high winds, suspended particulate erosion and icing, as well as long-term stable operation.

 

Since the 1970s, composite blades have become the standard for wind turbine manufacturing. Each region of the blade corresponds to a different cyclic load history, so the use of different composite materials in different regions of the blade can improve the design.

 

The stress distribution between the skin and the spar can be observed by subjecting the blade to different loads. In this case, there is a high stress near the root of the blade and at the junction between the circular cross section and the airfoil cross section. The level of stress between the laminates and the inner layers of the laminates varies, with the highest level being in the outer carbon-epoxy layer.

 

Performing stress and modal analysis helps engineers consider different types of loads when optimizing blade designs for 100 w wind turbines. In addition, with the "composite module", it is easy to stack structural layers with different thicknesses, material properties and fiber orientations, analyze these structures and modify the material types.www.titanwindturbine.com