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DEVELOPMENT AND VALIDATION OF THE 3D TEMPERATURE FIELD SIMULATION FOR THE TILTING PAD JOURNAL BEARINGS

Volume 9, Issue 2, 2017, pp. 151-163
DOI: 10.1615/ComputThermalScien.2017019029
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ABSTRACT

When it comes to prediction of the journal bearing performances, computational fluid dynamics (CFD) has been considered as a well-established method, which is much commonly used nowadays. Moreover, valuable outcomes, and even breaking through, can be expected when introducing CFD into the analysis of tilting pad journal bearings (TPJBs). This paper aims to apply this new 3D CFD method in TPJB thermal performance prediction. Completed in FLUENT, the present simulations have taken various thermal factors into consideration, including the lubricant properties changing with temperature variations and the conjugate heat transfer from the oil to the pads. In the transient calculations, a valid dynamic mesh algorithm was developed to cope with mesh updating in the paper-thin oil film area. The results generated from the simulations were verified by experimental measurements in other literature. Particularly, pad surface temperatures obtained from the simulations indicate a more accurate temperature distribution prediction than the traditional 2D Reynolds equation method. In addition, according to the calculations on flow fields carried out at different positions of the shaft center, the findings indicate that the changes in thickness of the oil film on the loaded pads lead to significant variations in maximum bearing temperature. In summary, the 3D CFD method, with better accuracy and more flow-field details available, ensures a more effective and efficient way of TPJB thermal performance prediction.

CITED BY
  1. Li Qiang, Zhang Shuo, Wang Yujun, Xu Wei-Wei, Wang Zhenbo, Investigations of the three-dimensional temperature field of journal bearings considering conjugate heat transfer and cavitation, Industrial Lubrication and Tribology, 71, 1, 2019. Crossref

  2. Chen Yu, Feng Jun, Sun Y., Peng Xu, Dai Qiao, Yu Chengtao, Effect of groove shape on the hydrodynamic lubrication of journal bearing considering cavitation, Engineering Computations, 37, 5, 2019. Crossref

  3. Tauviqirrahman Mohammad, Afif M. Fadhli, Paryanto P., Jamari J., Caesarendra Wahyu, Investigation of the Tribological Performance of Heterogeneous Slip/No-Slip Journal Bearing Considering Thermo-Hydrodynamic Effects, Fluids, 6, 2, 2021. Crossref

  4. Tauviqirrahman Mohammad, Paryanto , Muchammad , Mufian Muhammad Haekal, Jamari , Thermohydrodynamic Analysis of a Hydrophobic Rayleigh Step Bearing Considering Cavitation: Effect of Hydrophobic Coating Arrangement, in Proceedings of the 3rd Malaysian International Tribology Conference, 2022. Crossref

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