Torsional Vibration Damper

A method for damping torsional vibrations of a crankshaft of a piston machine having a torsional vibration damper or torsional vibration absorber, the method comprising:

• (S1):
• providing the torsional vibration damper or torsional vibration absorber fitted to the crankshaft, wherein the damper or absorber comprises:
• a rotating system having:
• (i) a primary mass, which primary mass is arranged on a rotatable shaft and which is securable in a rotationally secure manner, (ii) a secondary mass which is movable relative to the primary mass, and (iii) a sub-assembly for vibration damping and/or vibration absorption of the relative movement between the primary mass and the secondary mass, wherein
• the sub-assembly for vibration damping and/or vibration absorption of the relative movement between the primary mas and the secondary mass has at least one pressure store within the rotating system of the torsional vibration damper or the torsional vibration absorber,
• (S2):
• adjusting the at least one pressure store which is installed in the torsional vibration damper or torsional vibration absorber with a gas or air which is acted on with pressure;
• and
• (S3):
• damping the torsional vibrations of the crankshaft during operation of the piston machine by way of the torsional vibration damper or torsional vibration absorber.