| The primary goal of this research involves the description and creation of an analytical finite element model of a double-stage helical gear reduction. This model is used to gain additional insight into the vibration generation that results from helical gear meshing action. The model is also used to perform a limited number of parametric studies. The principal results from a 3D ANSYS partial helical gear model are the static transmission error and torsional mesh stiffness. These two outputs are used as the main inputs into a finite element analytical MATLAB model. In MATLAB, the finite element modelling approach is combined with the torsional-translational gear dynamic model to obtain an overall system model. Output shaft angle has negligible effect on the system's dynamic transmission errors and bearing forces (amplitudes and natural frequencies) while the shaft element length, bearing stiffness and gear positioning effects are significant. |
