吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (4): 990-997.doi: 10.13229/j.cnki.jdxbgxb20170269

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Analysis and verification for average axial pressure attenuation of multi-disc clutch

YU Liang1, LI He-yan1,2, MA Biao1,2, LI Hui-zhu1, LI Ming-yang1   

  1. 1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
    2.Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100081, China
  • Received:2017-03-20 Online:2018-07-01 Published:2018-07-01

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Abstract: For multi-disc clutches, an analytical model of average interfacial pressure and torque is established with the effect of spline friction. The pressure attenuation coefficient of friction pairs is derived and the sensitivity is analyzed to investigate the parameters, which may affect the clutch pressure. The results show that the friction coefficient greatly influences the pressure attenuation. The axial pressure significantly attenuates with the increase in interfacial friction coefficient and spline friction coefficient. The effect of the spline friction coefficient is more obvious than the interfacial friction coefficient. The spline pressure angle has little influence on the axial pressure attenuation. It is found by experiment that with the increase in friction pairs, the average torque of single friction pair dramatically declines, and the increase amplitude of total torque decreases. The proposed model is verified effectively by the comparison of the simulated results and experiment data, and the model can better reflect the actual pressure and torque characteristics of the multi-disc clutch.

Key words: vehicle engineering, multi-disc clutches, spline friction, interfacial pressure, torque

CLC Number: 

  • U463.2
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