Torsional vibration characteristic of powertrain equipped with different elastic couplings

The elastic couplings styles used in the heavy vehicle include the Geislinger coupling, diaphragm coupling, rubber coupling etc. The three style couplings have their own dynamic stiff and damping characteristic. The different elastic couplings have significant different effects on the natural frequency, as well as the vibration angular displacement amplitude of the lumped mass, the additional vibration torque and stress in the crankshafts and transmission shafts. This research results have been applied to the design for some elastic coupling and the match analysis between the engine and transmission.