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Effects of Heterogeneous Particle Parameters on Micro-EHL Lubrication on Composite Surface in Line Contact

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Abstract

In this paper, a numerical model of elastohydrodynamic lubrication (EHL) in the line contact which happens on the surface of particle-reinforced composites is given. The influence of the particle size and burial depth on the EHL is studied. According to the influence of the structural parameters on the friction coefficient of the EHL contact, the structural parameters of the particles in the composites are optimized and the proper region of the parameters is obtained. The displacement and stress in elastic field caused by the uniform eigenstrains in the particles are described in terms of Galerkin vectors with the interactions between the particles are ignored. A coupling method of particle reinforced composites problem and EHL problem is presented, a new film thickness function is given considered the uneven elastic deformation caused by the presence of the particles. Finally, the presentation of film thickness and fluid pressure of the EHL explains that appropriate particle size, particle burial depth and particle distance can effectively reduce the friction coefficient. The lubrication behavior between the contacted surfaces can be improved under the heavy load.

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Acknowledgements

The project was supported in part by the National Natural Science Foundation of China under Grants No.51975425 and No. 51875417.

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Authors and Affiliations

  1. Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, Ministry of Education, Wuhan, 430081, Hubei, China

    Juan Chen, Keying Chen, Liangcai Zeng & Wenting Guo

  2. Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, 430081, Hubei, China

    Juan Chen, Keying Chen, Liangcai Zeng & Wenting Guo

  3. Precision Manufacturing Institute, Wuhan University of Science and Technology, Wuhan, 430081, China

    Juan Chen, Keying Chen, Liangcai Zeng & Wenting Guo

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  1. Juan Chen
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  2. Keying Chen
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  3. Liangcai Zeng
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Correspondence to Juan Chen.

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Chen, J., Chen, K., Zeng, L. et al. Effects of Heterogeneous Particle Parameters on Micro-EHL Lubrication on Composite Surface in Line Contact. Int. J. Precis. Eng. Manuf. 22, 1989–1999 (2021). https://doi.org/10.1007/s12541-021-00588-w

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