吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 490-497.doi: 10.13229/j.cnki.jdxbgxb201702020

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Clutch friction pair motion effect caused by oil flow based on LBM-LES

LI Shen-long1, 2, LIU Shu-cheng2, XING Qing-kun2, ZHANG Jing2, LAI Yu-yang3   

  1. 1.Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing Institute of Technology, Beijing 100072, China;
    2.Science and Technology on Vehicle Transmission Laboratory, China North Vehicle Research Institute, Beijing 100072,China;
    3.Soyotec Technologies Co., Ltd., Beijing 100081, China
  • Received:2015-11-25 Online:2017-03-20 Published:2017-03-20

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Abstract: Axial movement of wet clutch friction pair caused by lubricating oil flow is one of the serious factors increasing drag losses and clutch failures. In order to study the friction pair axial movement caused by lubricating oil flow, a large eddy simulation model, wall adaptive local eddy viscosity model, was imported into a 2D single phase free surface mesoscopic model using lattice Boltzmann method to establish the friction parts and lubricating oil's fluid-solid-interaction LBM-LES digital simulation system under pressured lubricating condition. The influences of the relative position of oil nozzles, oil flow quantity and oil temperature on the friction pair axial moving process were investigated by digital simulation. Simulation results reveal that the friction pair axial motion law was affected by the position of oil nozzles and oil flow quantity. According to the simulation results, a novel oil groove was designed in place of traditional oil holes to inhibit the axial flow-caused-motion effect of the friction parts. This study may provide a theoretical basis for wet clutch improvement.

Key words: turn and control of fluid, wet clutch, lattice Boltzmann method, large eddy simulation, friction parts flow-caused-motion effect

CLC Number: 

  • TH137
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