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Analysis of Hydrodynamic Journal Bearings using Fluid Thermal Structural Interaction
Akasapu Naresh Babu,  T Dasthagiri
Hydrodynamic journal bearings are critical power transmission components that are carrying increasingly high loads because of the increasing power density in various machines. Therefore, knowing the true operating conditions of hydrodynamic journal bearings is essential to machine design. Oil film pressure is one of the key operating parameters describing the operating conditions in hydrodynamic journal bearings.
In this thesis, the CFD analysis, Thermal analysis is done on liquid lubricated cylindrical journal bearing. In order to find temperature distribution in the bearing structure, satisfying the boundary conditions are analyzed for some geometric and operating parameters, such as journal eccentricity ratio. Journal bearings for L/D ratio and different eccentricity ratios are modeled in 3D modeling software Pro/Engineer. The L/D ratios considered is 0.8 and eccentricity ratios considered are 0.2, 0.4, 0.6 and 0.8. The liquid lubricants are SAE30.
Journal bearing models are developed for speed of 5000 rpm to study the interaction between the fluid and elastic behaviour of the bearing. The speed is the input for CFD analysis and the temperature obtained from the CFD analysis are taken as input for thermal analysis.
Keywords- Journal Bearings, CFD analysis and Lubrication.
Unique Identification Number - IJEDR1702127Page Number(s) - 761-769Pubished in - Volume 5 | Issue 2 | April 2017DOI (Digital Object Identifier) -    Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
Akasapu Naresh Babu,  T Dasthagiri,   "Analysis of Hydrodynamic Journal Bearings using Fluid Thermal Structural Interaction"
, International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 2, pp.761-769, April 2017, Available at :http://www.ijedr.org/papers/IJEDR1702127.pdf