Research Papers: Hydrodynamic Lubrication

Dynamic Analysis of Spiral-Groove Rotary Seal Ring for Wet Clutches

[+] Author and Article Information
Yi M. Zhao

Science and Technology on Vehicle
Transmission Laboratory,
Beijing Institute of Technology,
Beijing 100081, China
e-mail: zhaoym2006@sina.cn

Ji B. Hu

Science and Technology on Vehicle
Transmission Laboratory,
Beijing Institute of Technology,
Beijing 100081, China
e-mail: hujb_bit@sina.com

Chao Wei

Science and Technology on Vehicle
Transmission Laboratory,
Beijing Institute of Technology,
Beijing 100081, China
e-mail: chaw2003@163.com

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received August 24, 2013; final manuscript received April 26, 2014; published online May 14, 2014. Assoc. Editor: Daniel Nélias.

J. Tribol 136(3), 031710 (May 14, 2014) (10 pages) Paper No: TRIB-13-1171; doi: 10.1115/1.4027548 History: Received August 24, 2013; Revised April 26, 2014

A tribo-dynamic model of a spiral-groove rotary seal ring is developed through coupling lubrication and dynamic equations. Effects of centrifugation, hydrodynamics, cavitation, and asperity contact are considered. To represent real rough surfaces, asperity contact is described by a statistics-based model. A global time marching scheme is developed to obtain the motion of seal ring and key parameters such as bearing force, friction torque, and leakage rate. Dynamic behaviors and seal characteristics of spiral-groove rotary seal ring under real and step change oil filling conditions are analyzed. The result shows that the rotary seal ring operates steadily under real conditions and has fast and stable step response. It is also indicated that the seal ring can achieve full film lubrication under high speed conditions through the oil filling and dispersing stage. The steady lubrication performance is experimentally validated.

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Gronitzki, M., and Poll, G. W. G., 2007, “Optimization of the Tribological Performance of Rectangular Seals in Automotive Transmissions,” Proc. Inst. of Mech. Eng., Part J: J. Eng. Tribol., 221(3), pp. 259–270. [CrossRef]
Malanoski, S. B., and Pan, C. H. T., 1965, “The Static and Dynamic Characteristics of the Spiral-Grooved Thrust Bearing,” ASME J. Basic Eng., 87(3), pp. 547–555. [CrossRef]
Zirkelback, N., and San Andres, L., 1999, “Effect of Frequency Excitation on Force Coefficients of Spiral Groove Gas Seals,” ASME J. Tribol., 121(4), pp. 853–863. [CrossRef]
Miller, B. A., and Green, I., 2002, “Numerical Techniques for Computing Rotordynamic Properties of Mechanical Gas Face Seals,” ASME J. Tribol., 124(4), pp. 755–761. [CrossRef]
Miller, B. A., and Green, I., 2001, “Numerical Formulation for the Dynamic Analysis of Spiral-Grooved Gas Face Seals,” ASME J. Tribol., 123(2), pp. 395–403. [CrossRef]
Green, I., and Barnsby, R. M., 2001, “A Simultaneous Numerical Solution for the Lubrication and Dynamic Stability of Noncontacting Gas Face Seals,” ASME J. Tribol., 123(2), pp. 388–394. [CrossRef]
Green, I., 2002, “A Transient Dynamic Analysis of Mechanical Seals Including Asperity Contact and Face Deformation,” Tribol. Trans., 45(3), pp. 284–293. [CrossRef]
Hu, J. B., Wei, C., and Li, X. Y., 2013, “A Uniform Cross-Speed Model of End-Face Seal Ring With Spiral Grooves for Wet Clutch,” Tribol. Int., 62, pp. 8–17. [CrossRef]
Yu, T. H., and Sadeghi, F., 2001, “Groove Effects on Thrust Washer Lubrication,” ASME J. Tribol., 123(2), pp. 295–304. [CrossRef]
Patir, N., and Cheng, H. S., 1979, “Application of Average Flow Model to Lubrication Between Rough Sliding Surfaces,” ASME J. Lubr. Technol., 101(2), pp. 220–229. [CrossRef]
Jakobsson, B., and Floberg, L., 1957, “The Finite Journal Bearing Considering Vaporization,” Tran. Chalmers Univ. of Tech. Gutenberg, Sweden, 190, pp. 1–116.
Olsson, K. O., 1965, “Cavitation in Dynamically Loaded Bearings,” Trans. Chalmers Univ. Tech. Gutenberg, 308, pp. 1–60.
Christopherson, D. G., 1941, “A New Mathematical Method for the Solution of Film Lubrication Problems,” Proc. Inst. Mech. Eng., 146(1), pp. 126–135. [CrossRef]
Payvar, P., and Salant, R. F., 1992, “A Computational Method for Cavitation in a Wavy Mechanical Seal,” ASME J. Tribol., 114(1), pp. 199–204. [CrossRef]
Kawabata, N., 1987, “A Study on the Numerical Analysis of Fluid Film Lubrication by the Boundary-Fitted Coordinates System (Fundamental Equations of Df Method and the Case of Incompressible Lubrication),” Trans. Japan Soc. Mech. Eng., Ser. C, 53(494), pp. 2155–2160. [CrossRef]
Chang, W. R., Etsion, I., and Bogy, D. B., 1987, “An Elastic-Plastic Model for the Contact of Rough Surfaces,” ASME J. Tribol., 109(2), pp. 257–263. [CrossRef]
McCool, J. I., 1986, “Comparison of Models for the Contact of Rough Surfaces,” Wear, 107(1), pp. 37–60. [CrossRef]
Jackson, R. L., and GreenI., 2005, “A Finite Element Study of Elasto-Plastic Hemispherical Contact Against a Rigid Flat,” ASME J. Tribol., 127(2), pp. 343–354. [CrossRef]
Shampine, L. F., and Reichelt, M. W., 1997, “The Matlab Ode Suite,” SIAM J. Sci. Comput., 18(1), pp. 1–22. [CrossRef]
Zhang, Y. Y., Wang, X. L., and YanX. L., 2013, “Dynamic Behaviors of the Elastohydrodynamic Lubricated Contact for Rolling Bearings,” ASME J. Tribol., 135(2), p. 21501. [CrossRef]
Marquardt, D. W., 1963, “An Algorithm for Least-Squares Estimation of Nonlinear Parameters,” J. Soc. Indust. Appl. Math., 11(2), pp. 431–441. [CrossRef]
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]


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Fig. 1

Schematic diagram of rotary seal ring

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Fig. 2

Structural diagram of spiral-groove rotary seal with hook joint

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Fig. 3

Seal ring kinematics and dynamics

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Fig. 4

Coordinates transformation of spiral curve

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Fig. 5

Contact model of rough surfaces

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Fig. 6

Hydrodynamic pressure distribution

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Fig. 7

Lubrication characteristics variation under real oil filling condition: (a) Pi versus t; (b) h0 versus t; (c) Ffl versus t; (d) Fas versus t; (e) Tfl versus t; and (f) Qfl versus t

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Fig. 8

Step response under various speed: (a) Pi versus t; (b) h0 versus t; (c) Ffl versus t; (d) Fas versus t; (e) Tfl versus t; (f) Qfl versus t; and (g) δc versus t

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Fig. 9

Comparison with available experimental results for SG20-1under 8.9 N, 18 N, and 36 N load from Qiu and Khonsari [22]

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Fig. 10

Test rig and specimen: (a) schematic diagram of test rig and (b) photograph of specimen

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Fig. 11

Experiment and simulation results comparison for the case of Pi = 1 MPa and (a) friction coefficient and (b) leakage




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