Vibration damping device for damping torsional vibrations in rotating components such as a drive system in vehicles comprises at least one clutch device with at least two elements rubbing against each other

摘要

Damping device includes two elements, a primary element (3.1) and a secondary element (3.2) coupled by a spring coupling. There is at least one adjustable clutch device (15,15') having at least two elements (16,17,16',17') rubbing against each other, bringing the primary and secondary elements into friction contact. A power generator is included to produce controllable friction contact for the elements rubbing against each other. An independent claim is included for a procedure to control the hysteresis of a vibration damping device.