科研之友
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摘要
The Reynolds equation has been solved simultaneously along with the energy equation and heat conduction equation by finite difference method to find pressure and temperature distribution for circular and offset-halves journal bearings. Numerical solution of energy equation was achieved using parabolic temperature profile approximation technique for faster computation. A comparative study for the rise in oil temperatures, thermal pressures and load-carrying capacity for the three different commercially available oils namely Hydrol 68, Mak 2T and Mak Multigrade (Bharat Petroleum Corporation Limited [BPCL], Mumbai, India) has been carried out. With an increase in speed, the oil temperature, the thermal pressure and the load-carrying capacity rose for all the grade oils under study. The rise in computed oil temperature, thermal pressures as well as load-carrying capacity has been found maximum for Mak Multigrade oil and minimum for Mak 2T oil. The nature of temperature profiles and load-carrying capacity has been found to be in good agreement with those available in the literature.
- 出版日期2011-8
