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TECHNICAL PAPERS

A Surface Wear Prediction Methodology for Parallel-Axis Gear Pairs

[+] Author and Article Information
P. Bajpai

The University of Toledo, Toledo, OH 43607

A. Kahraman

The Ohio State University, Columbus, OH 43210e-mail: kahraman.1@osu.edu

N. E. Anderson

General Motors Powertrain, Wixom, MI 48393

J. Tribol 126(3), 597-605 (Jun 28, 2004) (9 pages) doi:10.1115/1.1691433 History: Received January 14, 2003; Revised July 10, 2003; Online June 28, 2004
Copyright © 2004 by ASME
Topics: Wear , Gears , Pressure
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References

Figures

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Methodology used for the computation of wear
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A three-dimensional contact mechanics model of the example gear pair 22
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Basic involute gear parameters and the coordinate frame
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Illustration of sliding distance of a point ap on gear p at different positions r
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Illustration of the change of contact pressure (Pijκ)p of a point ij as a function or r
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Wear depth of gear p having no tooth surface modifications after geometry updates of (a) κ=3 and (b) κ=8;εκ=2 μm
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Wear depth of gear g having no tooth surface modifications after geometry updates of (a) κ=3 and (b) κ=8;εκ=2 μm
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Initial surfaces of (a) gear p and (b) gear g of a modified pair
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Worn surfaces of (a) gear p and (b) gear g having tooth surface modifications after geometry update of κ=8;εκ=2 μm
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Cumulative pressure contours of gear p, (a) (Pij0)p and (b) (Pij8)pκ=2 μm
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Tooth surfaces of gear p (a) initial measured surface having both tooth surface modifications and manufacturing errors, and (b) worn surface after κ=8;εκ=2 μm
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Tooth surfaces of gear g (a) initial measured surface having both tooth surface modifications and manufacturing errors, and (b) worn surface after κ=8;εκ=2 μm
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Worn surfaces of gear p of test-1 after 27 million input cycles: (a) measurement, and (b) prediction
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Comparison of measured and predicted maximum wear depth values as a function of input cycles; k=9.65(10)−19 m2/N

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