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Technical Briefs

Prediction of Steady State Adhesive Wear in Spur Gears Using the EHL Load Sharing Concept

[+] Author and Article Information
S. Akbarzadeh

Department of Mechanical Engineering, Louisiana State University, 2508 Patrick Taylor Hall, Baton Rouge, LA 70803

M. M. Khonsari1

Department of Mechanical Engineering, Louisiana State University, 2508 Patrick Taylor Hall, Baton Rouge, LA 70803khonsari@me.lsu.edu

1

Corresponding author.

J. Tribol 131(2), 024503 (Mar 05, 2009) (5 pages) doi:10.1115/1.3075859 History: Received May 27, 2008; Revised December 20, 2008; Published March 05, 2009

The concept of load sharing between asperities and fluid film is applied in conjunction with lubricated sliding wear formulation proposed by Wu and Cheng (1991, “A Sliding Wear Model for Partial-EHL Contacts,” ASME J. Tribol., 113, pp. 134–141; 1993, “Sliding Wear Calculation in Spur Gears,” ASME J. Tribol., 115, pp. 493–500) to predict the steady state adhesive wear in gears. Thermal effects are included using a simplified thermoelastohydrodynamic analysis. The prediction of the model is verified by comparing simulation results with published experimental data pertinent to steady state wear rate. The main advantages of this method are the accuracy and the remarkable computational efficiency. The results of parametric simulation study are presented to investigate the effect of speed and surface roughness on a portion of load carried by asperities and wear rate.

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Copyright © 2009 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Comparison of experimental data with current simulation

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Figure 2

Variation in transmitted load along the LoA

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Figure 3

Variation in film parameter along the LoA

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Figure 4

Variation of scaling factors along the LoA

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Figure 5

Variation in surface temperature

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Figure 6

Variation in volumetric wear rate along the LoA

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Figure 7

Variation in wear depth along the LoA

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Figure 8

Comparison of volumetric wear rate for different speeds

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Figure 9

Variation in volumetric wear rate with surface roughness

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