Abstract
The effects of surface roughness characteristics on the fluid load capacity of tilt pad thrust bearings with water lubrication were studied by the average flow model. The flow factors utilized in the average flow model were simulated with various surface roughness parameters including skewness, kurtosis and the roughness directional pattern. The results indicated that the fluid load capacity was not only affected by the RMS roughness but also by the surface roughness characteristics. The fluid load capacity was dramatically affected by the roughness directional pattern. The skewness had a lower effect than the roughness directional pattern. The kurtosis had no notable effect on the fluid load capacity. It was possible for the fluid load capacity of the tilt pad thrust bearings to be improved by the skewness and roughness direction pattern control.
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References
Tzeng S T, Saibel E. Surface roughness effect on slider lubrication. ASLE Trans 10: 334–348 (1967)
Christensen H, Tonder K. The hydrodynamic lubrication of rough bearing surfaces of finite width. Journal of Tribology 93(3): 324–329 (1971)
Christensen H, Tonder K. The hydrodynamic lubrication of rough journal bearings. Journal of Tribology 95(2): 166–172 (1973)
Chow L S H, Cheng H S. Influence of surface roughness and waviness on film thickness and pressure distribution in elastohydrodynamic contacts. NASA Contractor Report CR-2670, 1976.
Chow L S H, Cheng H S. The effect of surface roughness on the average film thickness between lubricated rollers. Journal of Tribology 98(1): 117–124 (1976)
Patir N, Cheng H S. Average flow model for determining effects of 3-dimensinal roughness on partial hydrodynamic lubrication. Journal of Lubrication Technology-Transactions of The ASME 100(1): 12–17 (1978)
Patir N, Cheng H S. Application of average flow model to lubrication between rough sliding surfaces. Journal of Lubrication Technology-Transactions of The ASME, 101(2): 220–230 (1979)
Patir N, Cheng H S. Effect of surface roughness orientation on the central film thickness in EHD contacts. In Proceedings-Society of Photo-Optical Instrumentation Engineers, 1979: 15–21.
Guo F, Jia X, Suo S, Salant R F, Wang Y. A mixed lubrication model of a rotary lip seal using flow factors. Tribology International 57: 195–201 (2013)
Zhao X Y, Liu Y, Huang W F, Liu X-F, Wang Y-M. Mechanism of second stage mechanical seal in hydrostatic seal system of nuclear coolant pumps. Tribology 4: 459–467 (2014)
Wen Q, Liu Y, Huang W, Suo S, Wang Y. The effect of surface roughness on thermal-elasto-hydrodynamic model of contact mechanical seals. Science China-Physics Mechanics & Astronomy 56(10): 1920–1929 (2013)
Burton R A. Effect of two-dimensional, sinusoidal roughness on the load support characteristics of a lubricant film. J Bas Eng 85(Series D): 258–262 (1963)
Davies M G. The generation of pressure between rough, fluid lubricated, moving, deformable surfaces. Lub Eng 19: 246 (1963)
Goglia P R, Conry T F, Cusano C. The effects of surface irregularities on the elastohydrodynamic lubrication of sliding line contacts.1.single irregularities. Journal of Tribology- Transactions of the ASME 106(1): 104–112 (1984)
Goglia P R, Cusano C, Conry T F. The effects of surface irregularities on the elastohydrodynamic lubrication of sliding line contacts. 2. Wavy surfaces. Journal of Tribology- Transactions of the ASME 106(1): 113–119 (1984)
Kweh C C, Evans H P, Snidle R W. Micro-elastohydrodynamic lubrication of an elliptical contact with transverse and three-dimensional sinusoidal roughness. Journal of Tribology 111(4): 577–584 (1989)
Félix Quiñonez A, Morales-Espejel G E. Surface roughness effects in hydrodynamic bearings. Tribology International 98: 212–219 (2016)
Li J, Zhang G, Huang Y, Chen R, Yan S, Cao H. Influence of non-Gaussian-distributed surface roughness on the static performance of slider bearings. Tribology Transactions in press, DOI 10.1080/10402004.2016.1208311 (2016)
Patir N. Numerical procedure for random generation of rough surfaces. Wear 47(2): 263–277 (1978)
Minet C, Brunetiere N, Tournerie B, Fribourg D. Analysis and modeling of the topography of mechanical seal faces. Tribology Transactions 53(6): 799–815 (2010)
Patir N. Effects of surface roughness on partial film lubrication using an average flow model based on numerical simulation. Northwestern University, Evanston, 1978.
Acknowledgements
This work was supported by the National Basic Research Program of China (973) (No. 2015CB057303) and the National Natural Science Foundation of China (No. 51275268).
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Yuechang WANG. He received his bachelor degree in mechanical engineering in 2014 from Tsinghua University, Beijing, China. After then, he is a master student in the Institute of Design Engineering (the Branch of the State Key Laboratory of Tribology) of Mechanical Engineering Department at Tsinghua University. His research interests include mixed lubrication in seals and bearings and characterization and simulation of surface topography.
Ying LIU. She received her M.S. and Ph.D degrees in mechanical engineering from Tsinghua University, China, in 1991 and 2003, respectively. She joined the Institute of Design Engineering (the Branch of the State Key Laboratory of Tribology) of Mechanical Engineering Department at Tsinghua University from 1991. Her current position is an associate professor. Her research interesting covers the design of mechanical seal system and study of water lubrication mechanism of bearings.
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Wang, Y., Liu, Y., Wang, Z. et al. Surface roughness characteristics effects on fluid load capability of tilt pad thrust bearings with water lubrication. Friction 5, 392–401 (2017). https://doi.org/10.1007/s40544-017-0153-y
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DOI: https://doi.org/10.1007/s40544-017-0153-y