Prediction of Performance of Involute Helical Gears by Observation of Tooth Contact Pattern. 2nd Report. Accuracy of Prediction for Composite Error Surface and Gear Performance.

Abstract

A practical algorithm to generate the composite form deviation of mating tooth flanks defined on the plane of action of cylindrical involute gears, referred to as "composite error surface", as a function of tooth contact pattern of the gear set was proposed in the first report of this investigation. In this report, the reliability of the proposed algorithm is examined by applying this method to some gears with different kinds of tooth contact patterns. The algorithm has enabled successful reconstruction of the composite error surface to produce a tooth contact pattern that matches the target pattern fairly well. Using the reconstructed composite error surface, the simulation of gear performance as a function of tooth contact pattern becomes possible. Using this software, the reliability of the predicted stress values and vibrational excitation as a function of tooth contact pattern was examined.