This invention relates to a
vibration damper for suppressing vibrations generated during rotor
system operation. Specifically, it is a combined bending-
torsional vibration damper for rotor systems. It comprises a first rotor, an inner torsional damping structure, rolling bearings, an outer bending damping structure, a circular support, and a second rotor. The inner torsional damping structure is positioned above the first and second rotors, within the rolling bearings, and suppresses torsional vibrations generated during rotor
system operation. The outer bending damping structure is positioned above the rolling bearings, within the circular support, and suppresses bending vibrations generated during rotor
system operation. Rubber rings are incorporated within both the inner and outer torsional damping structures. These rubber rings reduce
noise generated during rotor system operation and also provide some vibration damping. This invention suppresses both torsional and bending vibrations generated during rotor system operation, increasing the stability and service life of the rotor system.