| GU Le,CUI Hai-xu,MA Fang,ZHANG Jing-jing,ZHANG Chuan-wei,CUI Shu-hui.Partial EHL Analysis of Point Contact in Low Viscosity Fuel[J],46(6):49-54 |
| Partial EHL Analysis of Point Contact in Low Viscosity Fuel |
| Received:April 10, 2017 Revised:June 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.06.008 |
| KeyWord:fuel lubrication partial EHL of point contact finite difference method film thickness |
| Author | Institution |
| GU Le |
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin , China |
| CUI Hai-xu |
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin , China |
| MA Fang |
Haring Bearing Corporation of AECC, Harbin , China |
| ZHANG Jing-jing |
Haring Bearing Corporation of AECC, Harbin , China |
| ZHANG Chuan-wei |
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin , China |
| CUI Shu-hui |
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin , China |
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| Abstract: |
| JP-10 fuel has directly used to lubricate transmission parts in certain type of aero-engine. However, reliability of fuel lubrication is one of the obstacles restricting its application. A partial EHL model of point contact was established to study lubricating conditions of the transmission parts in low viscosity fuel JP-10. Finite difference method was used to obtain numerical solution of this model, which was based on elastohydrodynamic lubrication theory and elastic contact theory. The lubricating property of JP-10 was studied by comparing distributions of film thickness, film pressure and contact pressure among JP-10, aero lubricant 4050 and 4109. The film thickness and pressure of JP-10 were lower than that of the other lubricants, while asperity contact pressure in JP-10 was higher. Either lubricating property or lubricating reliability of JP-10 was lower than that of common aero oils. Advanced surface processing techniques, higher rotating speed within reasonable limits and higher surface precision are conducive to formation of fluid lubricating film. |
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