Computer-aided design of a two-stage gearbox

Abstract

A design methodology for two-speed gearboxes is presented in this paper. The input horse power, the input speed and net reductions in the gearbox are the parameters to be specified. The user is given the choice of shaft and gear material. The methodology specifies the shaft dimensions, gear specifications, bearing selection and overall space occupied and the self weight of the gearbox. The methodology also involves comparison of the design stresses obtained from classical design methodology with those obtained from the FEM modeling of the problem, along with the dynamic analysis of the model. The deflections of the shaft under the action of gear forces are determined using both FEM and classical methods.