Effect of deformed interface on hydro-viscous drive characteristics

Abstract

In this article, the effect of the deformed interface on the hydro-viscous drive characteristics was investigated through a three-dimensional fluid simulation and experiments. The main parameters such as pressure field, velocity field, and torque transferred by the oil film were simulated in FLUENT software in the light of the principle of the computational fluid dynamics. The results found that the dynamic pressure and velocity of the oil film goes up gradually along the radial direction, and the dynamic pressure at zone with groove is much higher than that without groove due to the hydrodynamic effect. After the interface deforming, the dynamic pressure decreases; while the torque transferred by the oil film increases slightly. Furthermore, a special hydro-viscous drive test-bed was developed to verify the correctness and validity of the theoretical results.

Keywords

Hydro-viscous drive deformed interface oil film transferred torque

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References

Wei

Zhang

. Hydro-viscous drive technology, Beijing: Defense Industry Press, 1996, pp. 3–12.

Zhang

. Investigation on start behavior of hydro-viscous transmission. J Beijing Univ Aeronaut Astronaut 2002; 28(5): 578–580.

Jang

Khonsari

. Thermal characteristics of a wet clutch. ASME J Tribol 1999; 121: 610–617.

Gao

Barber

. Engagement of a rough, lubricated and grooved disk clutch with a porous deformable paper-based friction material. Tribol Trans 2002; 45: 464–470.

Gao

Barber

Shillor

. Numerical simulation of engagement of a wet clutch with skewed surface roughness. ASME J Tribol 2002; 124: 305–312.

Chen

. Theoretical and application researches on hydroviscous drive, Zhejiang: Hangzhou, 2003.

Chen N and Yuan B. Study on the soft start-up steadiness of hydro-viscous drive. In: Proceedings of the fifth international symposium on fluid power transmission and control, Qinhuangdao, China, 6–8 June 2007. Beijing: Chinese Mechanical Engineering Society.

Aphale

Cho

Shultz

. Modeling and parametric study of torque in open clutch plates. ASME J Tribol 2006; 128: 422–430.

Jen

T-C

Nemecek

. Thermal analysis of a wet-disk clutch subjected to a constant energy engagement. Int J Heat Mass Transfer 2008; 51(7–8): 1757–1769.

10.

Meng

Hou

. Effects of friction disc surface groove on speed-regulating start. Ind Lubr Tribol 2009; 61(6): 325–331.

11.

Xie

Hou

Yang

. Drive characteristics of viscous oil film considering temperature effect. ASME J Fluids Eng 2011; 133(4): 044502–044502.

12.

Jonathan

William

. 2-D and 3-D numerical modeling of a dynamic resonant shear stress sensor. Comput Fluids 2009; 38: 340–346.

13.

Yuan Y, Attibele P and Dong Y. CFD simulation of the flows within disengaged wet clutches of an automatic transmission. SAE technical paper 2003010320, 2003. Warrendale, PA: SAE International.

14.

Fluent Inc. GAMBIT modeling guide, Shanghai: Fluent Inc., 2003, pp. 30–30.

15.

Xiao

. Implementation for model of adsoptive hydrogen storage using UDF in fluent. Phys Procedia 2012; 24(B): 793–800.