Influence of thermal pressure and temperature profile approximations in thermohydrodynamic analysis of surface-textured noncircular journal bearing |
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| Authors: | Bhasker B N. Seetharamaiah P. Ramesh Babu |
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| Affiliation: | 1. Department of Mechanical Engineering, University College of Engineering, Osmania University, Hyderabad, Telangana, India;2. Department of Mechanical Engineering, GITAM School of Technology, University in Telangana, Hyderabad, Telangana, India |
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| Abstract: | The present study aims to study the thermohydrodynamic performance of noncircular journal bearings lubricated with multigrade oil. Experimental investigations are carried out on phosphorous bronze hydrodynamic journal bearing with a surface textured at different loading conditions with multigrade oil (MAK 2T oil) as lubricant at different constant rotational speeds (i.e., 1000–4000 rpm) for studying the dynamic characteristics. The journal-bearing's thermodynamic behavior is analyzed by simplifying modified Reynolds and energy equations to obtain surface-textured bearing performance characteristics, such as load-carrying capacity, mass flow rate, and power loss. The noncircular bearings suggest several design parameters, such as a tilt angle for designers. By considering thermal effects for MAK 2T oil lubricant, the requirements of a specific application can be fulfilled. |
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| Keywords: | attitude angle offset-halve journal bearing Reynolds equation temperature thermal pressure |
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