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Research Papers: Hydrodynamic Lubrication

Comparison of the Load-Carrying Performance of Mechanical Gas Seals Textured With Microgrooves and Microdimples

[+] Author and Article Information
Liping Shi

College of Mechanical and
Electrical Engineering,
Nanjing University of Aeronautics
and Astronautics,
Nanjing 210016, China;
College of Mechanical Engineering,
Anhui University of Technology,
Ma'anshan 243002, China

Xiuying Wang, Xiao Su, Wei Huang

College of Mechanical and
Electrical Engineering,
Nanjing University of Aeronautics
and Astronautics,
Nanjing 210016, China

Xiaolei Wang

College of Mechanical and
Electrical Engineering,
Nanjing University of Aeronautics
and Astronautics,
Nanjing 210016, China
e-mail: wxl@nuaa.edu.cn

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received January 28, 2015; final manuscript received August 13, 2015; published online October 15, 2015. Assoc. Editor: Jordan Liu.

J. Tribol 138(2), 021701 (Oct 15, 2015) (7 pages) Paper No: TRIB-15-1032; doi: 10.1115/1.4031435 History: Received January 28, 2015; Revised August 13, 2015

The effects of microgrooves and microdimples on the load-carrying performance of mechanical gas seals are compared in this study. Numerical model based on the Reynolds equation for compressible Newtonian fluid is utilized to investigate the load-carrying performance including the hydrodynamic pressure, the load-carrying force, and gas film stiffness of the gas seals. The results indicate that both microgrooves and microdimples can improve the load-carrying performance of mechanical gas seals, particularly under a small clearance condition. Furthermore, different texture patterns achieve optimal load-carrying performance at different area density, seal clearance, and depth: microgrooves with a low area density can obtain higher load-carrying force and gas film stiffness than the dimple patterns, but with high area density, elliptical dimples yield better load-carrying performance than the groove patterns.

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References

Kligerman, Y. , and Etsion, I. , 2001, “ Analysis of the Hydrodynamic Effects in a Surface Textured Circumferential Gas Seal,” Tribol. Trans., 44(3), pp. 472–478. [CrossRef]
Brizmer, V. , Kligerman, Y. , and Etsion, I. , 2003, “ A Laser Surface Textured Parallel Thrust Bearing,” Tribol. Trans., 46(3), pp. 397–403. [CrossRef]
Wang, X. , Adachi, K. , and Kato, K. , 2005, “ Running-in Effect on the Load-Carrying Capacity of a Water-Lubricated SiC Thrust Bearing,” Proc. Inst. Mech. Eng., Part J, 219(2), pp. 117–124. [CrossRef]
Raeymaekers, B. , Etsion, I. , and Talke, F. E. , 2007, “ A Model for Magnetic Tape/Guide Friction Reduction by Laser Surface Texturing,” Tribol. Lett., 28(1), pp. 9–17. [CrossRef]
Yu, H. , Wang, X. , and Zhou, F. , 2009, “ Geometric Shape Effects of Surface Texture on the Generation of Hydrodynamic Pressure Between Conformal Contacting Surfaces,” Tribol. Lett., 37(2), pp. 123–130. [CrossRef]
Yu, H. , Deng, H. , Huang, W. , and Wang, X. , 2011, “ The Effect of Dimple Shapes on Friction of Parallel Surfaces,” Proc. Inst. Mech. Eng., Part J, 225(8), pp. 693–703. [CrossRef]
Tala-Ighil, N. , Fillon, M. , and Maspeyrot, P. , 2011, “ Effect of Textured Area on the Performances of a Hydrodynamic Journal Bearing,” Tribol. Int., 44(3), pp. 211–219. [CrossRef]
Zhang, J. , and Meng, Y. , 2012, “ Direct Observation of Cavitation Phenomenon and Hydrodynamic Lubrication Analysis of Textured Surfaces,” Tribol. Lett., 46(2), pp. 147–158. [CrossRef]
Shen, C. , and Khonsari, M. M. , 2013, “ Effect of Dimple's Internal Structure on Hydrodynamic Lubrication,” Tribol. Lett., 52(3), pp. 415–430. [CrossRef]
Muijderman, E. A. , 1965, Spiral Groove Bearing, Ind. Lubr. Tribol., 17(1), pp. 12–17.
Ha, T. W. , and Lee, A. S. , 2000, “ A Rotordynamic Analysis of Circumferentially-Grooved Pump Seals Based on a Three-Control-Volume Theory,” KSME Int. J., 14(3), pp. 261–271.
Yu, T. H. , and Sadeghi, F. , 2001, “ Groove Effects on Thrust Washer Lubrication,” ASME J. Tribol., 123(2), pp. 295–304. [CrossRef]
Yuan, S. , Huang, W. , and Wang, X. , 2011, “ Orientation Effects of Micro-Grooves on Sliding Surfaces,” Tribol. Int., 44(9), pp. 1047–1054. [CrossRef]
Lai, T. , 1994, “ Development of Non-Contacting, Non-Leaking Spiral Groove Liquid Face Seals,” Lubr. Eng., 50(8), pp. 625–631.
Qiu, Y. , and Khonsari, M. M. , 2011, “ Investigation of Tribological Behaviors of Annular Rings With Spiral Groove,” Tribol. Int., 44(12), pp. 1610–1619. [CrossRef]
Zhang, X. , Wang, X. , Liu, R. , and Zhang, Y. , 2013, “ Modeling and Analysis of Micro Hybrid Gas Spiral-Grooved Thrust Bearing for Microengine,” ASME J. Eng. Gas. Turbines Power, 135(12), p. 122508.
Biboulet, N. , Bouassida, H. , and Lubrecht, A. A. , 2015, “ Cross Hatched Texture Influence on the Load Carrying Capacity of Oil Control Rings,” Tribol. Int., 82(Part A), pp. 12–19. [CrossRef]
Hamilton, D. B. , Walowit, J. A. , and Allen, C. M. , 1966, “ A Theory of Lubrication by Micro-Irregularities,” ASME J. Fluids Eng., 88(1), pp. 177–185.
Etsion, I. , and Burstein, L. , 1996, “ A Model for Mechanical Seals With Regular Microsurface Structure,” Tribol. Trans., 39(3), pp. 677–683. [CrossRef]
Etsion, I. , Kligerman, Y. , and Halperin, G. , 1999, “ Analytical and Experimental Investigation of Laser-Textured Mechanical Seal Faces,” Tribol. Trans., 42(3), pp. 511–516. [CrossRef]
Etsion, I. , and Halperin, G. , 2002, “ A Laser Surface Textured Hydrostatic Mechanical Seal,” Tribol. Trans., 45(3), pp. 430–434. [CrossRef]
Kligerman, Y. , Etsion, I. , and Shinkarenko, A. , 2005, “ Improving Tribological Performance of Piston Rings by Partial Surface Texturing,” ASME J. Tribol., 127(3), pp. 632–638. [CrossRef]
Feldman, Y. , Kligerman, Y. , and Etsion, I. , 2006, “ A Hydrostatic Laser Surface Textured Gas Seal,” Tribol. Lett., 22(1), pp. 21–28. [CrossRef]
Feldman, Y. , Kligerman, Y. , and Etsion, I. , 2007, “ Stiffness and Efficiency Optimization of a Hydrostatic Laser Surface Textured Gas Seal,” ASME J. Tribol., 129(2), pp. 407–410. [CrossRef]
Murthy, A. N. , Etsion, I. , and Talke, F. E. , 2007, “ Analysis of Surface Textured Air Bearing Sliders With Rarefaction Effects,” Tribol. Lett., 28(3), pp. 251–261. [CrossRef]
Bai, S. , Peng, X. , Li, Y. , and Sheng, S. , 2010, “ A Hydrodynamic Laser Surface-Textured Gas Mechanical Face Seal,” Tribol. Lett., 38(2), pp. 187–194. [CrossRef]
Qiu, M. , Delic, A. , and Raeymaekers, B. , 2012, “ The Effect of Texture Shape on the Load-Carrying Capacity of Gas-Lubricated Parallel Slider Bearings,” Tribol. Lett., 48(3), pp. 315–327. [CrossRef]
Qiu, M. , Minson, B. R. , and Raeymaekers, B. , 2013, “ The Effect of Texture Shape on the Friction Coefficient and Stiffness of Gas-Lubricated Parallel Slider Bearings,” Tribol. Int., 67, pp. 278–288. [CrossRef]
Fu, Y. , Ji, J. , and Bi, Q. , 2012, “ The Influence of Partially Textured Slider With Oriented Parabolic Grooves on the Behavior of Hydrodynamic Lubrication,” Tribol. Trans., 55(2), pp. 210–217. [CrossRef]
Imai, N. , and Kato, T. , 2013, “ Effects of Texture Patterns on Hydrodynamic and Mixed Lubrication Characteristics,” Proc. Inst. Mech. Eng. Part J, 227(8), pp. 898–904. [CrossRef]
Nakano, M. , Korenaga, A. , Korenaga, A. , Miyake, K. , Murakami, T. , Ando, Y. , Usami, H. , and Sasaki, S. , 2007, “ Applying Micro-Texture to Cast Iron Surfaces to Reduce the Friction Coefficient Under Lubricated Conditions,” Tribol. Lett., 28(2), pp. 131–137. [CrossRef]
Nakano, M. , Miyake, K. , Korenaga, A. , Sasaki, S. , and Ando, Y. , 2009, “ Tribological Properties of Patterned NiFe-Covered Si Surfaces,” Tribol. Lett., 35(2), pp. 133–139. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Schematic diagram of a mechanical gas seal

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Fig. 2

The geometrical model of texture patterns: (a) elliptical dimples, (b) circular dimples, (c) microgrooves 1, and (d) microgrooves 2

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Fig. 3

Dimensionless pressure distribution at SP = 23.60%, δ = 0.02, and ε = 0.04 for different texture patterns: (a) elliptical dimples, (b) circular dimples, (c) microgrooves 1, and (d) microgrooves 2

Grahic Jump Location
Fig. 4

Effect of area density, SP, on the load-carrying force, F: (a) δ = 0.01, ε = 0.02 and (b) δ = 0.025, ε = 0.02

Grahic Jump Location
Fig. 5

Effect of dimensionless seal clearance, δ, on the load-carrying force, F: (a) ε = 0.005, SP = 7.70% and (b) ε = 0.035, SP = 39.10%

Grahic Jump Location
Fig. 6

Effect of dimensionless aspect ratio, ε, on the load-carrying force, F: (a) δ = 0.001, SP = 7.70% and (b) δ = 0.025, SP = 39.10%

Grahic Jump Location
Fig. 7

Effect of area density, SP, on gas film stiffness, K: (a) δ = 0.01, ε = 0.02 and (b) δ = 0.025, ε = 0.02

Grahic Jump Location
Fig. 8

Effect of dimensionless seal clearance, δ, on gas film stiffness, K: (a) ε = 0.005, SP = 7.70% and (b) ε = 0.035, SP = 39.10%

Grahic Jump Location
Fig. 9

Effect of dimensionless aspect ratio, ε, on gas film stiffness, K: (a) δ = 0.001, SP = 7.70% and (b) δ = 0.025, SP = 39.10%

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