A mathematical model for determination of temperature distribution in journal bearing | Jedan matematički model za određivanje raspodele temperature u kliznom radijalnom ležištu
2011
Antonić, Ž., Fakultet tehničkih nauka, Novi Sad (Serbia) | Nikolić, N., Fakultet tehničkih nauka, Novi Sad (Serbia) | Torović, T., Fakultet tehničkih nauka, Novi Sad (Serbia) | Dorić, J., Fakultet tehničkih nauka, Novi Sad (Serbia)
The Couette approximation method for obtaining temperature distribution in an oil film is used in the paper. A conjunction between the Reynolds equation and the adiabatic Energy equation is ruptured by this method enabling the two equations to be solved independently. By solving the adiabatic Energy equation, the temperature field in oil film is determined under different journal speed and load conditions. Relative journal position with respect to the bearing (eccentricity ratio) has been proposed as a measure of load. The exponential viscositytemperature relationship has been incorporated into the Energy equation. By solving the Reynolds equation, the pressure field in oil film under extreme conditions (maximum speed and load – minimum speed and load) has been determined in accordance with adiabatic and isoviscous theory, for oil SAE 30. Both Reynolds and Energy equations have been solved. All the calculations in the paper have been performed on the example of oil SAE 30.
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