Abstract: Rotationally symmetric dampers (FIG. 3A) of a new type for eliminating and avoiding vibrations in machines and installations, particularly wind turbines. The damping occurs by magnetically generated eddy currents. In addition, vibration absorbers, particularly pendulum absorbers (7), are equipped with such magnetic dampers, and to installations, particularly wind turbines, that are exposed to vibratory forces and that comprise such vibration absorbers.

Abstract: Rotationally symmetric dampers (FIG. 3A) of a new type for eliminating and avoiding vibrations in machines and installations, particularly wind turbines. The damping occurs by magnetically generated eddy currents. In addition, vibration absorbers, particularly pendulum absorbers (7), are equipped with such magnetic dampers, and to installations, particularly wind turbines, that are exposed to vibratory forces and that comprise such vibration absorbers.

Abstract: A teeter bearing, preferably for use in wind turbines, which is built up from elastic, in particular conical multilayered spring elements, which can optionally be varied in their stiffness behaviour by hydraulic devices and are arranged constructively in the region of the rotor hub so that they are consequently highly suitable both for adjustment of the rotor blades and also for reduction of undesired forces transmitted to the turbine through the rotor blades. In particular, the teeter bearings are suitable for use in one- and two-bladed rotor wind turbines.