1. The dynamic effect of nano-lubricant oils on the rotating machines behavior.
- Author
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Hammza, Tariq M. and Mansi, Hussein Ftaikhan
- Subjects
- *
COMPUTATIONAL fluid dynamics , *REYNOLDS equations , *LUBRICATING oils , *FLUID pressure , *JOURNAL bearings , *LUBRICATION & lubricants , *ELASTOHYDRODYNAMIC lubrication - Abstract
The impact of introducing nanoparticles to lubricating oils on bearing dynamic characteristics, as well as their impact on the rotor's dynamical reaction and critical speed, has been studied. The lubrication oil pressure, reaction forces, and dynamic coefficients of journal bearings are calculated using the modified lubrication oil viscosity as a result of adding nanoparticle additions to the lubricant oil. According to the Reynolds equation's theoretical solution. The theoretical conclusions are verified using the computational fluid dynamics (CFD) fluent Ansys program. The results demonstrate that as the volume fraction of nanoparticles and aggregate fraction increases up to the angular position130, the lubrication fluid pressure increases, then decreases as both the volume fraction and aggregate fraction increase. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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