by a damper 4 fig1 shows a simple oscillation damper with a plate sliding between two further plates there are however a lot of possible dampers for the oscillation absorber 33 known in the art as an alternative to the damper 4 a damper based on the generation of eddy currents or the deformation of an elastomer could be used there are also many possible ways to connect the damper 4 to the wall 6 of the structure or other components of the structure and to the pendulum 2 preferably more than one damper 4 can be used the damper 4 dampens the oscillation of the pendulum and converts the kinetic energy of the pendulum into heat or power that can be used for other purposes therefore the oscillation energy of the structure 1 is first transferred to the pendulum 2 and then to the dampener 4 where it is dissipated or used to limit the zone of danger 14 in which objects can be hit by the oscillating pendulum 2 and to prevent the pendulum 2 from hitting the wall 6 of the structure 1 and damaging them a containment ring 5 is used in the oscillation absorber 33 the pendulum passes vertically through the containment ring 5 the containment ring 5 limits the deflection of the pendulum 2 and therefore defines the zone of danger 14 it also ensures that the pendulum 2 cannot hit the wall 6 the containment ring 5 is attached to the wall 6 via the shear dampers 7 the.