Open AccessCalculation of Thermal Stress in Elastohydrodynamic Lubrication of Line Contact
Author(s) -
Lu Zheng,
Yanjun Lü
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012152
Subject(s) - materials science , lubrication , thermal , stress (linguistics) , mechanics , thermal expansion , composite material , entrainment (biomusicology) , thermodynamics , physics , linguistics , philosophy , rhythm , acoustics
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.