吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (4): 933-938.doi: 10.13229/j.cnki.jdxbgxb201404006

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Effect of clutches' structural parameters on thermalelastic instability

MA Biao1, ZHAO Jia-xin1, LI He-yan1, NING Ke-yan2, HE Chun-ping3   

  1. 1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
    2.Norinco Group China North Vehicle Research Institute, Beijing 100072, China;
    3.Norinco Group Jianglu Machinery and Electronics Group Company, Xiangtan 411100, China
  • Received:2013-01-08 Online:2014-07-01 Published:2014-07-01

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Abstract: During the synchronizing process of clutch, the reason and the rule of development of the inhomogeneous temperature field were investigated using Thermalelastic Instability (TEI) theory. A three dimensional finite element model was developed and the growth rates of the perturbation corresponding to different frequencies were calculated. The results show that the thermalelastic stability can be improved by the decrease in the clutch radius and the increase in the thickness of the friction disk. When the ratio between the inner and outer radii of the clutch is less than 0.6, as the ratio decreases the stability can be enhanced. When the thickness of the mating disk is less than 2 mm, the decrease in this thickness can also improve the stability.

Key words: vehicle engineering, clutches, thermoelastic instability, critical speed, structural parameters, finite element method

CLC Number: 

  • U463.2
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