Parametric analysis for a paper-based wet clutch with groove consideration

Li, M.; Khonsari, M. M.; McCarthy, D.M.C.; Lundin, Joakim

doi:10.1016/j.triboint.2014.06.023

Cited by 59 publications

(32 citation statements)

References 16 publications

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“…The performance of wet clutch was influenced by various groove effects. 24 In conclusion, from the above review of the previous work, although the structure of HVD has some similarity with wet clutch, there are essential differences in working conditions and operating performance. The effect of oil grooves on oil film torque is not the same.…”

Section: Introductionmentioning

confidence: 92%

Research on the effects of double arc oil groove parameters on oil film torque in hydro-viscous drive

Cui

Deng

Zi-sheng

2018

Advances in Mechanical Engineering

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In order to study the influence of double arc oil groove parameters on oil film torque in hydro-viscous drive, the numerical simulation and parameterized analyzing platform were built. The flow field characteristics were carried out using CFX. The parameter analysis platform was integrated with parameterized design of grooves, numerical simulation, and design of experiment (DOE). The effects of groove parameters on output torque were analyzed. The results indicate that the output torque consists of shear torque and impact torque, and the oil film shear torque plays a more important role in total torque. The shear torque is mainly affected by coefficient of effective area and velocity distribution. The velocity distribution and dynamic pressure on sidewalls are the main influencing factors on impact torque. The effect of eccentricity and oil grooves depth on the output torque is positive, but others are negative. In addition, the eccentricity and inner diameter of eccentric circle are sensitive parameters. The effects of oil groove parameters on oil film torque are analyzed accurately using the parameterized analyzing platform that is integrated with CAD, CFX, and DOE. A new method and theoretical foundation are provided for design of complex oil grooves in hydro-viscous drive.

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Section: Introductionmentioning

confidence: 92%

Research on the effects of double arc oil groove parameters on oil film torque in hydro-viscous drive

Cui

Deng

Zi-sheng

2018

Advances in Mechanical Engineering

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“…(3) Double arc groove friction plate According to the structure of the double arc groove friction plate, the flow rate is between that of the nongroove friction plate and radial groove friction plate [Li, Khonsari, Mccarthy et al (2014)]. Thus, we introduce a flow correction coefficient c to indicate the flow rate of the double arc groove friction plate Q3 as ( )…”

Section: Full Oil Film Lubrication Flow Modelmentioning

confidence: 99%

Experimental and Theoretical Analysis of the Drag Torque in Wet Clutches

Pan¹,

Zhou²

2019

Fluid Dynamics &Amp; Materials Processing

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Traditional mathematical models cannot predict and explain the phenomenon by which the drag torque (DT) in wet clutches rises in the high-speed zone. In order to evaluate the DT in such conditions, a two-phase air-fluid mathematical model for a DT with grooves was elaborated. The mathematical model was based on the theory of viscous fluid flow. A two-phase volume of fluid model was also used to investigate the distribution and volume fraction of air and fluid. Experiments on three friction plates with different grooves were conducted to validate the resulting mathematical model. It was found that the gap between plates decreased in the high-speed zone, thereby producing an increase of the DT in the high-speed zone. These results support the understanding of the physical phenomena relating to disengaged wet clutches, and provide a theoretical basis for the future improvement of drive systems.

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“…Lots of numerical and experimental research have been done to investigate the friction and wear behaviors of wet clutches. Gao et al [1], Li et al [2], Ompusunggu et al [3], and Iqbal et al [4] presented numerical models and experiments to investigate the engagement process of wet clutches. At the initial phase of engagement, friction discs are separated from the separate discs and rotate with relative velocity.…”

Section: Introductionmentioning

confidence: 99%

Friction and Wear Behaviors of Porous Paper-Based Friction Pairs in Wet Clutches by Pin-on-Disc Tests

Zheng¹,

Ma²,

Chen³

et al. 2020

International Conference on Fluid Flow and Thermal Science

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To investigate the friction and wear behaviors of porous paper-based friction material in wet clutches under severe working condition, the dry pin-on-disc tests were carried out by a UMT-5 tribometer. The test results of COF are presented, and the coefficient of variation is calculated and analyzed. To reveal the high temperature wear mechanism of paper-based friction material, the microstructure of worn surfaces is analyzed. The wear mechanism and friction behaviors of paper-based friction material are influenced by the softening, carbonization, and oxidation of fibers and resin. This investigation of friction and wear behaviors under dry working condition can be used to simulate the engagement process and explain the nonuniform wear phenomenon of wet clutches in SAE#2 tests.

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Parametric analysis for a paper-based wet clutch with groove consideration

Cited by 59 publications

References 16 publications

Research on the effects of double arc oil groove parameters on oil film torque in hydro-viscous drive

Research on the effects of double arc oil groove parameters on oil film torque in hydro-viscous drive

Experimental and Theoretical Analysis of the Drag Torque in Wet Clutches

Friction and Wear Behaviors of Porous Paper-Based Friction Pairs in Wet Clutches by Pin-on-Disc Tests

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