Synthesis of composite gear trains

Abstract

Composite gear trains can be described and defined by a series of index numbers. Inversions of these gear trains are examined and bounds on the index numbers are deduced. A table of index numbers is developed for gear trains providing up to sixteen output speeds; these trains include those of most practical interest.

A method is described for predicting a suitable design region, and a design criterion based on the maximum value of speed progression ratio is proposed as a means of synthesizing the most suitable gear trains from a large number of candidate systems.