Interpretation of temperature and rheological model involved in traction coefficient prediction
In our previous papers, we attempted to predict traction coefficient by combining oil film rheological models and heat conduction models. The rheological characteristic was considered by dividing rheological region in viscous and plastic. In addition, we formed a very tiny thin film sensor on rollin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2016-11-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/82/844/82_16-00421/_pdf/-char/en |
| _version_ | 1797989173014036480 |
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| author | Toshinari SANO Fumihiro ITOIGAWA Masashi INOUE |
| author_facet | Toshinari SANO Fumihiro ITOIGAWA Masashi INOUE |
| author_sort | Toshinari SANO |
| collection | DOAJ |
| description | In our previous papers, we attempted to predict traction coefficient by combining oil film rheological models and heat conduction models. The rheological characteristic was considered by dividing rheological region in viscous and plastic. In addition, we formed a very tiny thin film sensor on rolling surface, and challenged to measure temperature change directly when the sensor passed through inside contact portion. But physical interpretation of shear flow transition between two rheological regions was still unclear. Since the plastic model was determined as empirical formula, its universality was also insufficient. In this paper, we define boundary continuity of shear flow transition between the two rheological regions in a new interpretation. Further utilizing this result, we propose a theoretical approach to determine the plastic model by using rheological parameters in viscous region. When the model is derived theoretically and if it could express physical phenomena as a function of actual temperature, we need accurate oil film temperature estimation. In that case, we show that it is effective to make the temperature prediction model in vicinity of contact portion. This is because the time constant of contact film thermal diffusion is small, it makes sense as an effective prediction of traction coefficient. Also by the thin film sensor measurement, the time constant is actually confirmed to be extremely small. |
| first_indexed | 2024-04-11T08:14:56Z |
| format | Article |
| id | doaj.art-80334bea2abe4832a5092dc44556ab80 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:14:56Z |
| publishDate | 2016-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-80334bea2abe4832a5092dc44556ab802022-12-22T04:35:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612016-11-018284416-0042116-0042110.1299/transjsme.16-00421transjsmeInterpretation of temperature and rheological model involved in traction coefficient predictionToshinari SANO0Fumihiro ITOIGAWA1Masashi INOUE2Toyota Motor CorporationDepartment of Mechanical Engineering, Nagoya Institute of TechnologyNIPPON SOKEN INC.In our previous papers, we attempted to predict traction coefficient by combining oil film rheological models and heat conduction models. The rheological characteristic was considered by dividing rheological region in viscous and plastic. In addition, we formed a very tiny thin film sensor on rolling surface, and challenged to measure temperature change directly when the sensor passed through inside contact portion. But physical interpretation of shear flow transition between two rheological regions was still unclear. Since the plastic model was determined as empirical formula, its universality was also insufficient. In this paper, we define boundary continuity of shear flow transition between the two rheological regions in a new interpretation. Further utilizing this result, we propose a theoretical approach to determine the plastic model by using rheological parameters in viscous region. When the model is derived theoretically and if it could express physical phenomena as a function of actual temperature, we need accurate oil film temperature estimation. In that case, we show that it is effective to make the temperature prediction model in vicinity of contact portion. This is because the time constant of contact film thermal diffusion is small, it makes sense as an effective prediction of traction coefficient. Also by the thin film sensor measurement, the time constant is actually confirmed to be extremely small.https://www.jstage.jst.go.jp/article/transjsme/82/844/82_16-00421/_pdf/-char/entribologytraction coefficientoil film temperaturerheological modelglass transitionintermolecularlennard-jonesthin film sensor |
| spellingShingle | Toshinari SANO Fumihiro ITOIGAWA Masashi INOUE Interpretation of temperature and rheological model involved in traction coefficient prediction Nihon Kikai Gakkai ronbunshu tribology traction coefficient oil film temperature rheological model glass transition intermolecular lennard-jones thin film sensor |
| title | Interpretation of temperature and rheological model involved in traction coefficient prediction |
| title_full | Interpretation of temperature and rheological model involved in traction coefficient prediction |
| title_fullStr | Interpretation of temperature and rheological model involved in traction coefficient prediction |
| title_full_unstemmed | Interpretation of temperature and rheological model involved in traction coefficient prediction |
| title_short | Interpretation of temperature and rheological model involved in traction coefficient prediction |
| title_sort | interpretation of temperature and rheological model involved in traction coefficient prediction |
| topic | tribology traction coefficient oil film temperature rheological model glass transition intermolecular lennard-jones thin film sensor |
| url | https://www.jstage.jst.go.jp/article/transjsme/82/844/82_16-00421/_pdf/-char/en |
| work_keys_str_mv | AT toshinarisano interpretationoftemperatureandrheologicalmodelinvolvedintractioncoefficientprediction AT fumihiroitoigawa interpretationoftemperatureandrheologicalmodelinvolvedintractioncoefficientprediction AT masashiinoue interpretationoftemperatureandrheologicalmodelinvolvedintractioncoefficientprediction |