F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16 ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
F16F15/00 Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
F16F15/10 Suppression of vibrations in rotating systems by making use of members moving with the system
F16F15/12 using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
F16F15/131 the rotating system comprising two or more gyratory masses
F16F15/133 using springs as elastic members, e.g. metallic springs