Considering the influence of the inertia item on temperature distribution of multidisk friction pairs in hydroviscous drive (HVD), transient temperature models are derived with the aim of revealing the effect of engagement pressure, lubricant viscosity, viscosity–temperature correlation, surface roughness and the ratio of inner and outer radius of disks on temperature distribution. The results indicate that unsteady temperature gradient can be avoided by matching the suitable materials for multidisk friction pairs. The average temperature for the case of neglecting the inertia item is lower than that of the case of including the inertia item. It is shown that during the soft-start, the temperature along the radial direction achieves its peak value near the outlet and keeps decreasing along the axial direction; while after the engaging process, the temperature distribution tends to be uniform. It is also shown that the decrease of engagement pressure, surface roughness and the ratio of inner and outer radius of disks can reduce temperature gradient effectively as well as the increase of lubricant viscosity. The average temperature for the case of including the viscosity–temperature correlation is much higher than that for other cases.
Issue Section:
Hydrodynamic Lubrication
References
1.
Davis
, C. L.
, Sadeghi
, F.
, and Krousgrill
, C. M.
, 2000
, “A Simplified Approach to Modeling Thermal Effects in Wet Clutch Engagement: Analytical and Experimental Comparison
,” ASME J. Tribol.
, 122
(1
), pp. 110
–118
.10.1115/1.5553702.
Berger
, E. J.
, Sadeghi
, F.
, and Krousgrill
, C. M.
, 1997
, “Analytical and Numerical Modeling of Engagement of Rough Permeable Grooved Wet Clutches
,” ASME J. Tribol.
, 119
(1
), pp. 143
–148
.10.1115/1.28324503.
Mansouri
, M.
, Holgerson
, M.
, Khonsari
, M. M.
, and Aung
, W.
, 2001
, “Thermal and Dynamic Characterization of Wet Clutch Engagement With Provision for Drive Torque
,” ASME J. Tribol.
, 123
(2
), pp. 313
–323
.10.1115/1.13298564.
Zagrodzki
, P.
, Lam
, K.
, Bahkali
, E.
, and Barber
, J.
, 2001
, “Nonlinear Transient Behavior of a Sliding System With Frictionally Excited Thermoelastic Instability
,” ASME J. Tribol.
, 123
(4
), pp. 699
–708
.10.1115/1.13531805.
Burton
, R. A.
, Nerlikar
, V.
, and Kilaparti
, S. R.
, 1973
, “Thermoelastic Instability in a Seal-Like Configuration
,” Wear
, 24
(2
), pp. 177
–178
.10.1016/0043-1648(73)90230-56.
Lee
, K.
, and Barber
, J.
, 1993
, “Frictionally Excited Thermoelastic Instability in Automotive Disk Brakes
,” ASME J. Tribol.
, 115
(4
), pp. 607
–614
.10.1115/1.29216837.
Zagrodzki
, P.
, and Truncone
, S.
, 2003
, “Generation of Hot Spots in a Wet Multidisk Clutch During Short-Term Engagement
,” Wear
, 254
(5–6), pp. 474
–491
.10.1016/S0043-1648(03)00019-X8.
Zagrodzki
, P.
, and Macey
, J. P.
, 2000
, “Theoretical and Experimental Study of Hot Spotting in Frictional Clutches and Brakes
,” 5th International Tribology Conference
, Nagasaki
, Japan, October 29–November 2, pp. 1931
–1936
.9.
Jen
, T. C.
, and Nemecek
, D. J.
, 2008
, “Thermal Analysis of a Wet-Clutch Subjected to a Constant Energy Engagement
,” Int. J. Heat Mass Transfer
, 51
(7-8)
, pp. 1757
–1769
.10.1016/j.ijheatmasstransfer.2007.07.00910.
Marklund
, P.
, Mäki
, R.
, Larsson
, R.
, Höglunda
, E.
, Khonsarib
, M. M.
, and Jangb
, J.
, 2007
, “Thermal Influence on Torque Transfer of Wet Clutches in Limited Slip Differential Applications
,” Tribol. Int.
, 40
(5
), pp. 876
–884
.10.1016/j.triboint.2006.09.00411.
Tatara
, R. A.
, and Payvar
, P.
, 2002
, “Multiple Engagement Wet Clutch Heat Transfer Model
,” Numer. Heat Transfer, Part A
, 42
(3
), pp. 215
–231
.10.1080/1040778029005951212.
Yang
, Y.
, Lam
, R. C.
, Chen
, Y. F.
, and Yabe
, H.
, 1996
, “Modeling of Heat Transfer and Fluid Hydrodynamic for a Multidisc Wet Clutch
,” SAE
International Paper No. 950898. 10.4271/95089813.
Yang
, Y.
, Lam
, R. C.
, and Fujii
, T.
, 1998
, “Prediction of Torque Response During the Engagement of Wet Friction Clutch
,” SAE
International Paper No. 981097. 10.4271/98109714.
Gear
, G. W.
, 1971
, Numerical Initial Value Problems in Ordinary Differential Equations
, Prentice-Hall
, Englewood Cliffs, NJ
.15.
Jang
, J. Y.
, and Khonsari
, M. M.
, 1999
, “Thermal Characteristics of a Wet Clutch
,” ASME J. Tribol.
, 121
(3
), pp. 610
–617
.10.1115/1.283411116.
Jang
, J. Y.
, and Khonsari
, M. M.
, 1999
, “Thermoelastic Instability Including Surface Roughness Effects
,” ASME J. Tribol.
, 121
(4
), pp. 648
–658
.10.1115/1.283411817.
Jang
, J. Y.
, and Khonsari
, M. M.
, 2000
, “Thermoelastic Instability With Consideration of Surface Roughness and Hydrodynamic Lubrication
,” ASME J. Tribol.
, 122
(4
), pp. 725
–732
.10.1115/1.128821518.
Holgerson
, M.
, 2000
, “Optimizing the Smoothness and Temperatures of a Wet Clutch Engagement Through Control of the Normal Force and Drive Torque
,” ASME J. Tribol.
, 122
(1
), pp. 119
–125
.10.1115/1.55533419.
Holgerson
, M.
, 1999
, “Engagement Behavior of a Paper-Based Wet Clutch-Part 1: Influence of Drive Torque
,” Proc. Inst. Mech. Eng., Part D
, 213
(4
), pp. 341
–348
.10.1243/095440799152690020.
Holgerson
, M.
, 1997
, “Apparatus for Measurement of Engagement Characteristics of a Wet Clutch
,” Wear
, 213
(1–2
), pp. 140
–147
.10.1016/S0043-1648(97)00202-021.
Patir
, N.
, and Cheng
, H. S.
, 1978
, “Average Flow Model for Determining Effects of Three Dimension Roughness on Partial Hydrodynamic Lubrication
,” J. Lubr. Technol.
, 100
(1
), pp. 12
–17
.10.1115/1.345310322.
Shuangmei
, Z.
, Gregory
, H. E.
, and Lokeswarappa
, D. R.
, 2008
, “Behavior of a Composite Multidisk Clutch Subjected to Mechanical and Frictionally Excited Thermal Load
,” Wear
, 264
(11–12), pp. 1059
–1068
.10.1016/j.wear.2007.08.01223.
Ingram
, M.
, Reddyhoff
, T.
, and Spikes
, H.
, 2011
, “Thermal Behavior of a Slipping Wet Clutch Contact
,” Tribol. Lett.
, 41
(1
), pp. 23
–32
.10.1007/s11249-010-9669-224.
Zagrodzki
, P.
, 1985
, “Numerical Analysis of Temperature Fields and Thermal Stresses in the Friction Discs of a Multidisk Wet Clutch
,” Wear
, 101
(3
), pp. 255
–271
.10.1016/0043-1648(85)90080-825.
Xie
, F. W.
, and Hou
, Y. F.
, 2011
, “Oil Film Hydrodynamic Load Capacity of Hydro-Viscous Drive With Variable Viscosity
,” Ind. Lubr. Tribol.
, 63
(3
), pp. 210
–215
.10.1108/0036879111112663526.
Xie
, F. W.
, Hou
, Y. F.
, and Yang
, P.
, 2011
, “Drive Characteristics of Viscous Oil Film Considering Temperature Effect
,” ASME J. Fluids Eng.
, 133
(4
), p. 044502
.10.1115/1.4004007Copyright © 2014 by ASME
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