NONLINEAR VIBRATIONS OF GEAR DRIVES

Summary The contribution presents the modal synthesis method of the mathematical modelling of the gear drive nonlinear vibrations caused by internal excitation generated in gear meshings. Especially undesirable vibrations characterized by discontinuity of mesh gear can be caused by kinematic transmission errors and time dependent meshing stiffnesses in case of small static load. These gear drive impact motions are explained by direct time‐integration method and using time series, phase trajectories and Poincare map.