Details
| Original language | English |
|---|---|
| Article number | 114101 |
| Number of pages | 11 |
| Journal | Journal of tribology |
| Volume | 146 |
| Issue number | 11 |
| Early online date | 19 Jul 2024 |
| Publication status | E-pub ahead of print - 19 Jul 2024 |
Abstract
Surface irregularities substantially affect the performance of tribological systems. The influence of three-dimensional surface irregularities on the behavior of hole-entry spherical hybrid journal bearings has been investigated. Recently, smart fluids have been employed in several applications to improve their performance. The interactive effect of electrorheological (ER) fluid and surface irregularities has also been studied. The modified Reynolds equation and restrictor flow equation have been solved using the finite element technique with appropriate boundary conditions. The results show that consideration of surface irregularities on the bearing surface enhances bearing stability. Spherical hybrid journal bearings lubricated by ER fluid increase minimum fluid film thickness and minimize the possibility of metal-to-metal contact. It is found that the combined effect of surface irregularities and ER fluid significantly improved the bearing performance parameters than individual behavior. The bearing designer is anticipated to benefit from the current model.
Keywords
- bearing design and technology, ER fluid, FEM, spherical journal bearing, surface irregularities
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Journal of tribology, Vol. 146, No. 11, 114101, 11.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Combined Effect of Surface Irregularities and Applied Voltage on the Behavior of Hole-Entry Spherical Hybrid Journal Bearings Lubricated With an Electro-Rheological Fluid
AU - Tomar, Adesh Kumar
AU - Sahu, Krishnkant
AU - Sharma, Satish C.
AU - Marian, Max
N1 - Publisher Copyright: © 2024 by ASME.
PY - 2024/7/19
Y1 - 2024/7/19
N2 - Surface irregularities substantially affect the performance of tribological systems. The influence of three-dimensional surface irregularities on the behavior of hole-entry spherical hybrid journal bearings has been investigated. Recently, smart fluids have been employed in several applications to improve their performance. The interactive effect of electrorheological (ER) fluid and surface irregularities has also been studied. The modified Reynolds equation and restrictor flow equation have been solved using the finite element technique with appropriate boundary conditions. The results show that consideration of surface irregularities on the bearing surface enhances bearing stability. Spherical hybrid journal bearings lubricated by ER fluid increase minimum fluid film thickness and minimize the possibility of metal-to-metal contact. It is found that the combined effect of surface irregularities and ER fluid significantly improved the bearing performance parameters than individual behavior. The bearing designer is anticipated to benefit from the current model.
AB - Surface irregularities substantially affect the performance of tribological systems. The influence of three-dimensional surface irregularities on the behavior of hole-entry spherical hybrid journal bearings has been investigated. Recently, smart fluids have been employed in several applications to improve their performance. The interactive effect of electrorheological (ER) fluid and surface irregularities has also been studied. The modified Reynolds equation and restrictor flow equation have been solved using the finite element technique with appropriate boundary conditions. The results show that consideration of surface irregularities on the bearing surface enhances bearing stability. Spherical hybrid journal bearings lubricated by ER fluid increase minimum fluid film thickness and minimize the possibility of metal-to-metal contact. It is found that the combined effect of surface irregularities and ER fluid significantly improved the bearing performance parameters than individual behavior. The bearing designer is anticipated to benefit from the current model.
KW - bearing design and technology
KW - ER fluid
KW - FEM
KW - spherical journal bearing
KW - surface irregularities
UR - http://www.scopus.com/inward/record.url?scp=85199357479&partnerID=8YFLogxK
U2 - 10.1115/1.4065771
DO - 10.1115/1.4065771
M3 - Article
AN - SCOPUS:85199357479
VL - 146
JO - Journal of tribology
JF - Journal of tribology
SN - 0742-4787
IS - 11
M1 - 114101
ER -