Sensitivity Analysis of Tip-Thickness and Slope on the Tip Strength of Spur Gear Sets

摘要

For gears working on a specific rotational direction it is possible to change coast side's profile in order to increase strength on the root of the tooth. It is easily appreciated that increasing root's thickness would result in increased strength for tooth's root, but it would also result in decreased tip thickness. A highly decreased tip thickness would deteriorate the overall strength of the tooth. In this paper, in order to define the acceptable limits for tip thickness, a straight line approximation with variable slope was used as coast side tooth profile in order to cover a wide range of values as a first estimate.