A new and innovative rotor blade connection concept with which bushings can be reproducibly glued into a drilled hole in the GRP under vacuum.

Alternatively, the bushings glued into a GFRP wedge can also be inserted as a prefab component into the layer structure of the rotor blade. Thus, the ADC.Bushing offers all freedom for the design of a rotor blade connection or a blade-to-blade connection.

In addition, the concept can also be used to repair defective bushings. After drilling out the defective bushing, the ADC.Bushing is simply inserted into the drilled hole and bonded with the aid of the fully automatic infusion tool. Real-size pull-out tests on repaired blade connection segments show higher strength than the original bushings.

With a weight of only 1400 g in the M30 variant, the ADC.Bushing enables a connection that can withstand a pull-out strength of 750 kN. With a segment size of only 70 x 70 mm, a very light connection can be realized.

For stronger applications, the M36 variant with a pull-out strength of 1000 kN is available. Installed in a segment of 80 x 80 mm, a strong rotor blade connection can be realized with the 2800 g light steel part.

The system is suitable for both epoxy and polyether based fiber composite materials.

For further information please contact us.