吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (6): 1557-1563.doi: 10.13229/j.cnki.jdxbgxb201406004

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Simulation of wet clutch engagement characteristics based on advanced average flow model

MA Biao1, LI Guo-qiang1, LI He-yan1, ZHU Li-an2   

  1. 1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
    2.Jianglu Machinery and Electronics Group Co.,Ltd., Xiangtan 411100, China
  • Received:2013-03-26 Online:2014-11-01 Published:2014-11-01

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Abstract: According to the structural characteristics of wet clutches in hydraulic-mechanical transmission, the surface roughness, permeability of the friction material, and the centrifugal force of the lubricant oil film were investigated. Then a modified Reynolds equation based on the advanced average flow model was developed to calculate the relationship between oil film pressure and oil film thickness. The Green-Tripp method was used to develop the force and torque balance equations of single friction pair. The friction heat between friction plate and steel plate, and the cooling effect of oil film on the friction pair were analyzed. Thus, the change characteristics of the torque response, the film thickness and angular velocity during the engagement were acquired. Also the effects of the working parameters and material properties on the torque response during engagement were considered.

Key words: vehicle engineering, wet clutch, average flow model, hydraulic-mechanical transmission, engagement process

CLC Number: 

  • U463.22
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