VIBRATION DAMPING OF A WIND TURBINE TOWER

The invention relates to a coupling element (32) prepared for fastening between a oscillatory body (12) and a tower wall (4) of a tower of a wind turbine (100) in order to influence relative motion between the oscillatory body (12) and the tower wall (4) in order to thereby influence vibration behavior of the tower, comprising a first fastening section for fastening to the oscillatory body (12) and a second fastening section for fastening to the tower wall (4) in order to establish mechanical coupling between the oscillatory body (12) and the tower wall (4) via the coupling element (32), the coupling permitting relative motion between the oscillatory body (12) and the tower wall (4), and the relative motion having a first motion direction, in the case of which the first and second fastening sections move toward each other, and a second motion direction, in the case of which the first and second fastening sections move away from each other, and the coupling element (32) having a spring element for spring-elastic coupling between the first and second fastening sections, the spring-elastic coupling being described by a spring function and the spring element being designed in such a way that the spring function is substantially the same for the first and second motion directions and additionally or alternatively the spring element being designed in such a way that motion in the first motion direction leads to compression of a first spring section and to extension of a second spring section in the spring element and motion in the second motion direction leads to extension of the first spring section and to compression of the second spring section in the spring element in order to thereby match the respective spring functions for the first and second motion directions to each other. L'invention concerne un élément de couplage (32) prévu pour montage entre un corps oscillant (12) et une paroi de tour (4) d'une tour de centrale éolienne (100) afin d'influencer le mouvement relatif entre le corps oscillant (12) et la paroi de la tour (4) pour induire ainsi un comportement vibratoire de la tour, comprenant une première section de fixation à monter sur le corps oscillant (12) et une deuxième section de fixation à monter sur la paroi de la tour (4), pour réaliser un couplage mécanique par le biais de l'élément de couplage (32) entre le corps oscillant (12) et la paroi de la tour (4), le couplage permettant un mouvement relatif entre le corps oscillant (12) et la paroi