Open AccessElastohydrodynamic analysis of couple stress lubricated cylindrical journal bearing
Author(s) -
Sanjeev Kumar Lambha,
Vinod Kumar,
Rajiv Verma
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1240/1/012165
Subject(s) - lubricant , bearing (navigation) , elasticity (physics) , mechanics , reynolds equation , materials science , flexibility (engineering) , stress (linguistics) , rotor (electric) , viscosity , lubrication , fluid bearing , mechanical engineering , engineering , composite material , mathematics , computer science , physics , linguistics , statistics , philosophy , artificial intelligence , reynolds number , turbulence
The elastohydrodynamic analysis of plain cylindrical rotor bearing system lubricated with couple stress fluid is performed in this paper. The hydrodynamic pressure is generated entirely by the motion of the journal and depends on the viscosity of the lubricated fluid. In this analysis the static and dynamic characteristics are analyzed against the flexibility of bearing liner. The modified Reynold equation and three dimensional elasticity equations are solved using an iterative approach. A non-dimensional parameter ‘l’ has been used for couple stress fluid. An increase in couple stress parameter with flexibility causes the enhancement of load carrying capacity. The static and dynamic characteristics of journal bearing system with flexible liner are improved with use of couple stress fluid as lubricant.