A new wear prediction method of tooth surfaces of involute gears based on a real tooth surface model and a modified fractal method is developed. The real tooth surface model of an involute gear pair is introduced, and microgeometry feature detection of tooth surfaces is achieved by monitoring variations of normal vectors of each discrete data point of the real tooth surface model. To predict wear progression of tooth surfaces of a gear pair, an abrasive wear analysis model and the modified fractal method are used to analyze contact performance and its changes with accumulation of surface wear. The abrasive wear analysis model can analyze wear depths of gear tooth surfaces with sliding distances, local contact pressure, and directions of wear progression based on Archard's model. The modified fractal method is proposed to calculate instantaneous contact stiffness and estimate elastic and plastic deformation regions based on an asperity contact model. Microgeometry features of tooth surface asperities can be described as the basis of an asperity contact model and allow tooth contact analysis of real tooth surface models with their local microgeometry feature changes due to plastic deformations. Feasibility and effectiveness of this wear prediction method were verified by comparing predicted results of gear surface wear progression with gear wear test results.
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March 2019
Research-Article
Prediction of Surface Wear of Involute Gears Based on a Modified Fractal Method
G. Li,
G. Li
Department of Mechanical Engineering,
University of Maryland,
Baltimore County,
1000 Hilltop Circle,
Baltimore, MD 21250
e-mail: ligangteller@163.com
University of Maryland,
Baltimore County,
1000 Hilltop Circle,
Baltimore, MD 21250
e-mail: ligangteller@163.com
Search for other works by this author on:
Z. H. Wang,
Z. H. Wang
School of Mechanical Engineering,
University of Shanghai for
Science and Technology,
Shanghai 200093, China
e-mail: wang_zhonghou18@163.com
University of Shanghai for
Science and Technology,
Shanghai 200093, China
e-mail: wang_zhonghou18@163.com
Search for other works by this author on:
W. D. Zhu
W. D. Zhu
Fellow ASME
Division of Dynamics and Control,
School of Astronautics,
Harbin Institute of Technology,
Harbin 150001, China;
Division of Dynamics and Control,
School of Astronautics,
Harbin Institute of Technology,
Harbin 150001, China;
Department of Mechanical Engineering,
University of Maryland,
Baltimore County,
Baltimore, MD 21250
e-mail: wzhu@umbc.edu
University of Maryland,
Baltimore County,
1000 Hilltop Circle
,Baltimore, MD 21250
e-mail: wzhu@umbc.edu
Search for other works by this author on:
G. Li
Department of Mechanical Engineering,
University of Maryland,
Baltimore County,
1000 Hilltop Circle,
Baltimore, MD 21250
e-mail: ligangteller@163.com
University of Maryland,
Baltimore County,
1000 Hilltop Circle,
Baltimore, MD 21250
e-mail: ligangteller@163.com
Z. H. Wang
School of Mechanical Engineering,
University of Shanghai for
Science and Technology,
Shanghai 200093, China
e-mail: wang_zhonghou18@163.com
University of Shanghai for
Science and Technology,
Shanghai 200093, China
e-mail: wang_zhonghou18@163.com
W. D. Zhu
Fellow ASME
Division of Dynamics and Control,
School of Astronautics,
Harbin Institute of Technology,
Harbin 150001, China;
Division of Dynamics and Control,
School of Astronautics,
Harbin Institute of Technology,
Harbin 150001, China;
Department of Mechanical Engineering,
University of Maryland,
Baltimore County,
Baltimore, MD 21250
e-mail: wzhu@umbc.edu
University of Maryland,
Baltimore County,
1000 Hilltop Circle
,Baltimore, MD 21250
e-mail: wzhu@umbc.edu
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received February 9, 2018; final manuscript received September 20, 2018; published online November 8, 2018. Assoc. Editor: Sinan Muftu.
J. Tribol. Mar 2019, 141(3): 031603 (13 pages)
Published Online: November 8, 2018
Article history
Received:
February 9, 2018
Revised:
September 20, 2018
Citation
Li, G., Wang, Z. H., and Zhu, W. D. (November 8, 2018). "Prediction of Surface Wear of Involute Gears Based on a Modified Fractal Method." ASME. J. Tribol. March 2019; 141(3): 031603. https://doi.org/10.1115/1.4041587
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