Abstract
Thrust bearing used to carry the external axial loads is a crucial part in the gas/steam turbine system of power generation plant. With demand for the high-speed thrust bearing and more efficiency savings, the texturing as well as the boundary slip applied on the bearing has been proven to improve the bearing tribological performance. In the present study, the modified Reynolds equation with slip based on the critical shear stress approach for solving the lubrication problem of textured bearing with double pockets is proposed. For obtaining effective computation, such equation is solved by finite volume method combined with tridiagonal matrix algorithm. An optimization model based on the exact optimization approach is employed to determine the best texture depth for the configuration of thrust pad for maximizing the load support. Results are also presented for various pocket shapes (i.e. rectangular, triangular and parabola). Numerical experiments show that in terms of load support, a significant improvement of 28% by optimization is achievable by optimizing the textured depth. It is also confirmed that the advantage of texture depth optimization is more obvious when the rectangular pocket shape is employed. The wide spans of findings here may provide a design reference for textured thrust bearing considering slip.
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Tauviqirrahman, M. et al. (2020). An Optimization Study on Texture Depth for Bearing Sliders with Slip. In: Sabino, U., Imaduddin, F., Prabowo, A. (eds) Proceedings of the 6th International Conference and Exhibition on Sustainable Energy and Advanced Materials. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4481-1_52
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DOI: https://doi.org/10.1007/978-981-15-4481-1_52
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