Dynamic damping of oscillations of the transmission output shaft of a car with an internal combustion engine

For the transmission gear box containing the mechanisms with immovable wheel axes and a planetary differential, the problem of synthesis of dynamic parameters of the model of the transmission output shaft providing dynamic damping of oscillations is solved. The problem is solved for the two highest stages of the transmission box on the fixed engine revolutions at two frequencies with the maximum amplitudes found during decomposition of the perturbing action of the engine into Fourier series. The method developed permits solving the problem of dynamic damping of oscillations for the transmission boxes with two-shaft composition. The unengaged gear wheels are used as the dynamic damper of oscillations transmitted from the engine crankshaft to the transmission. It permits reducing the wear of gear transmissions, decreasing the noise and vibration of transmission.