吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (02): 377-381.

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Effect of surface roughness amplitude on point contact mixed lubrication condition

ZHANG Kuo1, TAN Qing-chang1, WANG Shun1, WANG Cong-hui1, WANG Chun-yan1,2   

  1. 1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2. Department of Computer Science and Technology, Changchun Normal University, Changchun 130022, China
  • Received:2011-08-15 Online:2012-03-01 Published:2012-03-01

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Abstract: A mathematical model was built for the mixed lubrication with point contact of rough surface. A set of mixed lubrication parameters such as ratio of lubrication film thickness, ratio of contact area,ratio of contact load, and ratio of maximum pressure were introduced to analyze the effects of 3 surface roughness amplitudes on the mixed lubrication under conditions of external loads of 800 and 80 N, and the lubricant entrainment velocities of 0~5000 mm/s. The results showed that the roughness amplitude of the contact surfaces has a significant effect on the average lubrication film thickness and the maximum pressure in the mixed lubrication region.

Key words: mechanical engineering, point contact, surface roughness amplitude, parameter analysis

CLC Number: 

  • TH117.2
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