Effect of Shaft Misalignment on Time-varying Mesh Model of Spur Gear

摘要

To analyze the influence of shaft misalignment on the transmission characteristics of gearbox, a mechanical model of gears considering friction, coincidence, assembly errors and other real teeth meshing conditions is proposed. The time-varying mesh stiffness (TVMS) is accurately calculated by potential energy method. The influence of assembly errors on gear meshing is simulated, and the corresponding relationship between different forms of assembly errors and TVMS, transmission error (TE) is obtained. Finally, the TE curves under normal mesh condition and unbalanced load are obtained by experiments. The experimental results prove the accuracy of the deduction.