Friction characteristics of microtextured surfaces under mixed and hydrodynamic lubrication

Ashwin Ramesh; Wasim Akram; Surya P. Mishra; Andrew H. Cannon; Andreas A. Polycarpou; William P. King

doi:10.1016/j.triboint.2012.07.020

Friction characteristics of microtextured surfaces under mixed and hydrodynamic lubrication

Ashwin Ramesh, Wasim Akram, Surya P. Mishra, Andrew H. Cannon, Andreas A. Polycarpou, William P. King

Research output: Contribution to journal › Article › peer-review

Abstract

We report experimental and numerical investigations of the friction characteristics of microtextured surfaces. The textures are of size 28-257 μm on stainless steel surfaces, fabricated using micro-casting. Friction characteristics of these surfaces were tested under submerged conditions using a pin-on-disk configuration. Numerical simulations solved the Navier-Stokes equations to predict the texture-induced lift. During hydrodynamic lubricated sliding, the textured surfaces exhibit friction as much as 80% lower than the untextured surfaces. We study the effect of operating conditions on the friction performance of the surfaces for different textures. The trends obtained in the experiments match well with the simulations, and indicate design rules for the implementation of this technology.

Original language	English (US)
Pages (from-to)	170-176
Number of pages	7
Journal	Tribology International
Volume	57
DOIs	https://doi.org/10.1016/j.triboint.2012.07.020
State	Published - Jan 2013

Keywords

Hydrodynamic lubrication
Microtexturing
Mixed lubrication
Surface engineering

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Surfaces and Interfaces
Surfaces, Coatings and Films

Online availability

10.1016/j.triboint.2012.07.020

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title = "Friction characteristics of microtextured surfaces under mixed and hydrodynamic lubrication",

abstract = "We report experimental and numerical investigations of the friction characteristics of microtextured surfaces. The textures are of size 28-257 μm on stainless steel surfaces, fabricated using micro-casting. Friction characteristics of these surfaces were tested under submerged conditions using a pin-on-disk configuration. Numerical simulations solved the Navier-Stokes equations to predict the texture-induced lift. During hydrodynamic lubricated sliding, the textured surfaces exhibit friction as much as 80% lower than the untextured surfaces. We study the effect of operating conditions on the friction performance of the surfaces for different textures. The trends obtained in the experiments match well with the simulations, and indicate design rules for the implementation of this technology.",

keywords = "Hydrodynamic lubrication, Microtexturing, Mixed lubrication, Surface engineering",

author = "Ashwin Ramesh and Wasim Akram and Mishra, {Surya P.} and Cannon, {Andrew H.} and Polycarpou, {Andreas A.} and King, {William P.}",

note = "Funding Information: This work was sponsored by the NSF through the Center for Compact and Efficient Fluid Power. We thank Jeff Gordon for some laboratory assistance.",

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doi = "10.1016/j.triboint.2012.07.020",

language = "English (US)",

volume = "57",

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journal = "Tribology International",

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AU - Ramesh, Ashwin

AU - Akram, Wasim

AU - Mishra, Surya P.

AU - Cannon, Andrew H.

AU - Polycarpou, Andreas A.

AU - King, William P.

N1 - Funding Information: This work was sponsored by the NSF through the Center for Compact and Efficient Fluid Power. We thank Jeff Gordon for some laboratory assistance.

PY - 2013/1

Y1 - 2013/1

N2 - We report experimental and numerical investigations of the friction characteristics of microtextured surfaces. The textures are of size 28-257 μm on stainless steel surfaces, fabricated using micro-casting. Friction characteristics of these surfaces were tested under submerged conditions using a pin-on-disk configuration. Numerical simulations solved the Navier-Stokes equations to predict the texture-induced lift. During hydrodynamic lubricated sliding, the textured surfaces exhibit friction as much as 80% lower than the untextured surfaces. We study the effect of operating conditions on the friction performance of the surfaces for different textures. The trends obtained in the experiments match well with the simulations, and indicate design rules for the implementation of this technology.

AB - We report experimental and numerical investigations of the friction characteristics of microtextured surfaces. The textures are of size 28-257 μm on stainless steel surfaces, fabricated using micro-casting. Friction characteristics of these surfaces were tested under submerged conditions using a pin-on-disk configuration. Numerical simulations solved the Navier-Stokes equations to predict the texture-induced lift. During hydrodynamic lubricated sliding, the textured surfaces exhibit friction as much as 80% lower than the untextured surfaces. We study the effect of operating conditions on the friction performance of the surfaces for different textures. The trends obtained in the experiments match well with the simulations, and indicate design rules for the implementation of this technology.

KW - Hydrodynamic lubrication

KW - Microtexturing

KW - Mixed lubrication

KW - Surface engineering

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VL - 57

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JO - Tribology International

JF - Tribology International

ER -

Friction characteristics of microtextured surfaces under mixed and hydrodynamic lubrication

Abstract

Keywords

ASJC Scopus subject areas

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