Calculation of Thermal Stress in Elastohydrodynamic Lubrication of Line Contact

A numerical method is proposed to calculate the surface thermal stresses of solids in thermal elastohydrodynamic lubrication of line contact. According to the method, the material line thermal expansion coefficients of lubricated contact surface are calculated after obtaining the pressure and temper...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-11, Vol.1676 (1), p.12152
Main Authors: Lu, Zunyou, Lu, Yanjun
Format: Article
Language:English
Subjects:
Axial stress
Circumferences
Compressive properties
Contact pressure
Contact stresses
Elastohydrodynamic lubrication
Entrainment
Line contact
Lubrication
Numerical methods
Physics
Temperature
Thermal expansion
Thermal stress
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Summary:A numerical method is proposed to calculate the surface thermal stresses of solids in thermal elastohydrodynamic lubrication of line contact. According to the method, the material line thermal expansion coefficients of lubricated contact surface are calculated after obtaining the pressure and temperature that meet the convergence conditions, then the thermal stresses are calculated. The results show that the values of the circumferential thermal stress and the axial thermal stress are negative. Both the circumferential thermal stress and the axial thermal stress are compressive stresses. When the entrainment speed Increases, the absolute values of the circumferential and axial thermal stresses become larger.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1676/1/012152