Elastic deformation of surface roughness in thin film hydrodynamic lubrication

Kazuyuki Yagi; Joichi Sugimura

doi:10.1115/IJTC2011-61135

Elastic deformation of surface roughness in thin film hydrodynamic lubrication

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In the current study, the influence of elastic deformation in thin film hydrodynamic lubrication was numerically investigated. The one dimensional Reynolds equation was solved with considering the piezoviscosity effect of the lubricant and elastic deformation of the sliding surface in flat-flat contacts. The contact area comprised of a stationary rigid surface with sine waves with amplitude of several nano meters and a moving flat compliant surface. The obtained numerical results show that small amplitude of roughness compared with the averaged film thickness influences the pressure distribution of the hydrodynamic film. Reduction of the roughness and decay in wave of the roughness occurred because of the elastic deformation induced by local pressure generation.

Original language	English
Title of host publication	ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011
Pages	155-157
Number of pages	3
DOIs	https://doi.org/10.1115/IJTC2011-61135
Publication status	Published - Dec 1 2011
Event	ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011 - Los Angeles, CA, United States Duration: Oct 24 2011 → Oct 26 2011

Publication series

Name	American Society of Mechanical Engineers, Tribology Division, TRIB

Other

Other	ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011
Country/Territory	United States
City	Los Angeles, CA
Period	10/24/11 → 10/26/11

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Materials Science(all)

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10.1115/IJTC2011-61135

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Yagi, K & Sugimura, J 2011, Elastic deformation of surface roughness in thin film hydrodynamic lubrication. in ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011. American Society of Mechanical Engineers, Tribology Division, TRIB, pp. 155-157, ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011, Los Angeles, CA, United States, 10/24/11. https://doi.org/10.1115/IJTC2011-61135

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abstract = "In the current study, the influence of elastic deformation in thin film hydrodynamic lubrication was numerically investigated. The one dimensional Reynolds equation was solved with considering the piezoviscosity effect of the lubricant and elastic deformation of the sliding surface in flat-flat contacts. The contact area comprised of a stationary rigid surface with sine waves with amplitude of several nano meters and a moving flat compliant surface. The obtained numerical results show that small amplitude of roughness compared with the averaged film thickness influences the pressure distribution of the hydrodynamic film. Reduction of the roughness and decay in wave of the roughness occurred because of the elastic deformation induced by local pressure generation.",

author = "Kazuyuki Yagi and Joichi Sugimura",

year = "2011",

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doi = "10.1115/IJTC2011-61135",

language = "English",

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series = "American Society of Mechanical Engineers, Tribology Division, TRIB",

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AU - Sugimura, Joichi

PY - 2011/12/1

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N2 - In the current study, the influence of elastic deformation in thin film hydrodynamic lubrication was numerically investigated. The one dimensional Reynolds equation was solved with considering the piezoviscosity effect of the lubricant and elastic deformation of the sliding surface in flat-flat contacts. The contact area comprised of a stationary rigid surface with sine waves with amplitude of several nano meters and a moving flat compliant surface. The obtained numerical results show that small amplitude of roughness compared with the averaged film thickness influences the pressure distribution of the hydrodynamic film. Reduction of the roughness and decay in wave of the roughness occurred because of the elastic deformation induced by local pressure generation.

AB - In the current study, the influence of elastic deformation in thin film hydrodynamic lubrication was numerically investigated. The one dimensional Reynolds equation was solved with considering the piezoviscosity effect of the lubricant and elastic deformation of the sliding surface in flat-flat contacts. The contact area comprised of a stationary rigid surface with sine waves with amplitude of several nano meters and a moving flat compliant surface. The obtained numerical results show that small amplitude of roughness compared with the averaged film thickness influences the pressure distribution of the hydrodynamic film. Reduction of the roughness and decay in wave of the roughness occurred because of the elastic deformation induced by local pressure generation.

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BT - ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011

T2 - ASME/STLE 2011 International Joint Tribology Conference, IJTC 2011

Y2 - 24 October 2011 through 26 October 2011

ER -

Elastic deformation of surface roughness in thin film hydrodynamic lubrication

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