Premium
Thermohydrodynamic studies based on different grade oils in offset‐halves journal bearing
Author(s) -
Chauhan Amit,
Sehgal Rakesh,
Sharma Rajesh Kumar
Publication year - 2011
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.164
Subject(s) - reynolds equation , oil drilling , offset (computer science) , thermal conduction , finite difference method , mechanics , bearing (navigation) , computation , thermal , heat transfer , thermodynamics , mathematics , materials science , reynolds number , engineering , mechanical engineering , physics , computer science , drilling , algorithm , astronomy , turbulence , programming language
This work presents theoretical and experimental investigations on offset‐halves bearing to access the temperature rise at oil–bush interface with three different grade commercial oils namely Mak 2T, Hydrol 68 and Mak Multigrade at different loads. The Reynolds equation was solved simultaneously along with the energy equation and heat conduction equations by the finite difference method to find the pressure and temperature distribution for offset‐halves journal bearing. The energy equation was solved using parabolic temperature profile approximation technique for faster computation. A comparative study for oil temperatures and thermal pressures for three grade oils was carried out vis‐à‐vis the effect of speed and eccentricity ratio. The temperatures in the oil film were observed to be lowest for Mak 2T oil and highest for Mak Multigrade oil. Copyright © 2011 John Wiley & Sons, Ltd.