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Gravitational force impact generator for wind turbine rotor blade testing has impact body incorporated within rotor blade for providing impact force during blade rotation
Gravitational force impact generator for wind turbine rotor blade testing has impact body incorporated within rotor blade for providing impact force during blade rotation
The impact generator is incorporated within the rotating rotor blade, for providing an impact force for testing the rotor blade twice during each rotor blade rotation at 2 angular positions offset by 180 degrees, using the gravitational force acting on an impact body (1). The impact body can be held in each of its end positions by a permanent magnet (2,3), with an electromagnetic coil (5,6) selectively supplied with a coil current (4) for weakening the magnetic force.
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