CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT
By combining the thermal elastohydrodynamic lubrication theory, thermoelastic mechanics theory and principle of heat-pressure conversion, a method was presented to solve the material thermal expansion coefficient of solid surface in the thermal elastohydrodynamic lubrication of line contact. It coul...
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.026 |
| _version_ | 1826871940522967040 |
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| author | LU ZunYou |
| author_facet | LU ZunYou |
| author_sort | LU ZunYou |
| collection | DOAJ |
| description | By combining the thermal elastohydrodynamic lubrication theory, thermoelastic mechanics theory and principle of heat-pressure conversion, a method was presented to solve the material thermal expansion coefficient of solid surface in the thermal elastohydrodynamic lubrication of line contact. It could solve the thermal elastic deformation of solid surface caused by non-uniform temperature field under constraint of oil film pressure. Numerical results satisfying the convergence conditions were obtained by an example, and the influence of load, entrainment speed and solid material on the material thermal expansion coefficient were further studied. When the two solids are the same metal material, the results show that the thermal expansion coefficient of the solid surface with large radius is relatively large at each point in the computational domain; when the load increases, the material thermal expansion coefficient of the solid surface at each point becomes larger; when the entrainment speed increases, the thermal expansion coefficient will decrease; when the density of solid increases, the material thermal expansion coefficient decreases. |
| first_indexed | 2024-03-12T20:48:17Z |
| format | Article |
| id | doaj.art-995a9cc7434a495e82cace30b5bb1977 |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2025-02-16T23:48:21Z |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-995a9cc7434a495e82cace30b5bb19772025-01-15T02:24:51ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-014419219729910354CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACTLU ZunYouBy combining the thermal elastohydrodynamic lubrication theory, thermoelastic mechanics theory and principle of heat-pressure conversion, a method was presented to solve the material thermal expansion coefficient of solid surface in the thermal elastohydrodynamic lubrication of line contact. It could solve the thermal elastic deformation of solid surface caused by non-uniform temperature field under constraint of oil film pressure. Numerical results satisfying the convergence conditions were obtained by an example, and the influence of load, entrainment speed and solid material on the material thermal expansion coefficient were further studied. When the two solids are the same metal material, the results show that the thermal expansion coefficient of the solid surface with large radius is relatively large at each point in the computational domain; when the load increases, the material thermal expansion coefficient of the solid surface at each point becomes larger; when the entrainment speed increases, the thermal expansion coefficient will decrease; when the density of solid increases, the material thermal expansion coefficient decreases.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.026Line contactThermal elastohydrodynamic lubricationThermal expansion coefficientThermal elastic deformationHeat-pressure conversion |
| spellingShingle | LU ZunYou CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT Jixie qiangdu Line contact Thermal elastohydrodynamic lubrication Thermal expansion coefficient Thermal elastic deformation Heat-pressure conversion |
| title | CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT |
| title_full | CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT |
| title_fullStr | CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT |
| title_full_unstemmed | CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT |
| title_short | CALCULATION OF THERMAL EXPANSION COEFFICIENT OF MATERIALS IN THERMAL ELASTOHYDRODYNAMIC LUBRICATION OF LINE CONTACT |
| title_sort | calculation of thermal expansion coefficient of materials in thermal elastohydrodynamic lubrication of line contact |
| topic | Line contact Thermal elastohydrodynamic lubrication Thermal expansion coefficient Thermal elastic deformation Heat-pressure conversion |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.026 |
| work_keys_str_mv | AT luzunyou calculationofthermalexpansioncoefficientofmaterialsinthermalelastohydrodynamiclubricationoflinecontact |