Method for determining the size of a torsional oscillation damper of a vehicle power train

• Main Authors: MAHE HERVE, LEFEBVRE YANNICK
• Format: Patent
• Language: Chinese; English
• Published: 17.04.2018
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a method for sizing the second damping stage of a torsional oscillation damper of a vehicle power train (1), said unit including: a system upstream from the torsional oscillation damper; a system downstream from the torsional oscillation damper; and the torsional oscillation damper, including: a first damping stage, including first resilient return members; the second damping stage, including second resilient return members; and a pendulum-type damping device, including a mounting (4) and pendulum bodies (3) movable relative to said mounting (4). Said method includes,given: the value of the moment of inertia (I_transmission) of the downstream system; the value of the moment of inertia of the pendulum-type damping device; the value of the stiffness (K1) of the single resilient return member modelling the first resilient return members; and the value of the stiffness (Kgis) of the input shaft of the gearbox (5), determining the value of the stiffness (K2) of thesingle resilient return m