Increase of Traction Coefficient due to Surface Microtexture
Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the tractio...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Nanbu, Toshikazu [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2007 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media, LLC 2007 |
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| Übergeordnetes Werk: |
Enthalten in: Tribology letters - Springer US, 1995, 29(2007), 2 vom: 18. Dez., Seite 105-118 |
|---|---|
| Übergeordnetes Werk: |
volume:29 ; year:2007 ; number:2 ; day:18 ; month:12 ; pages:105-118 |
| Links: |
|---|
| DOI / URN: |
10.1007/s11249-007-9287-9 |
|---|
| Katalog-ID: |
OLC2054474053 |
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| 520 | |a Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. | ||
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| 650 | 4 | |a Continuously variable transmissions | |
| 650 | 4 | |a Traction drives | |
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| 700 | 1 | |a Ushijima, Kenshi |4 aut | |
| 700 | 1 | |a Watanabe, Jun |4 aut | |
| 700 | 1 | |a Zhu, Dong |4 aut | |
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10.1007/s11249-007-9287-9 doi (DE-627)OLC2054474053 (DE-He213)s11249-007-9287-9-p DE-627 ger DE-627 rakwb eng 670 VZ Nanbu, Toshikazu verfasserin aut Increase of Traction Coefficient due to Surface Microtexture 2007 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2007 Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. Traction Micro-EHL Continuously variable transmissions Traction drives Yasuda, Yoshiteru aut Ushijima, Kenshi aut Watanabe, Jun aut Zhu, Dong aut Enthalten in Tribology letters Springer US, 1995 29(2007), 2 vom: 18. Dez., Seite 105-118 (DE-627)221187790 (DE-600)1355921-7 (DE-576)06488354X 1023-8883 nnns volume:29 year:2007 number:2 day:18 month:12 pages:105-118 https://doi.org/10.1007/s11249-007-9287-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_70 AR 29 2007 2 18 12 105-118 |
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10.1007/s11249-007-9287-9 doi (DE-627)OLC2054474053 (DE-He213)s11249-007-9287-9-p DE-627 ger DE-627 rakwb eng 670 VZ Nanbu, Toshikazu verfasserin aut Increase of Traction Coefficient due to Surface Microtexture 2007 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2007 Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. Traction Micro-EHL Continuously variable transmissions Traction drives Yasuda, Yoshiteru aut Ushijima, Kenshi aut Watanabe, Jun aut Zhu, Dong aut Enthalten in Tribology letters Springer US, 1995 29(2007), 2 vom: 18. Dez., Seite 105-118 (DE-627)221187790 (DE-600)1355921-7 (DE-576)06488354X 1023-8883 nnns volume:29 year:2007 number:2 day:18 month:12 pages:105-118 https://doi.org/10.1007/s11249-007-9287-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_70 AR 29 2007 2 18 12 105-118 |
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10.1007/s11249-007-9287-9 doi (DE-627)OLC2054474053 (DE-He213)s11249-007-9287-9-p DE-627 ger DE-627 rakwb eng 670 VZ Nanbu, Toshikazu verfasserin aut Increase of Traction Coefficient due to Surface Microtexture 2007 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2007 Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. Traction Micro-EHL Continuously variable transmissions Traction drives Yasuda, Yoshiteru aut Ushijima, Kenshi aut Watanabe, Jun aut Zhu, Dong aut Enthalten in Tribology letters Springer US, 1995 29(2007), 2 vom: 18. Dez., Seite 105-118 (DE-627)221187790 (DE-600)1355921-7 (DE-576)06488354X 1023-8883 nnns volume:29 year:2007 number:2 day:18 month:12 pages:105-118 https://doi.org/10.1007/s11249-007-9287-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_70 AR 29 2007 2 18 12 105-118 |
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10.1007/s11249-007-9287-9 doi (DE-627)OLC2054474053 (DE-He213)s11249-007-9287-9-p DE-627 ger DE-627 rakwb eng 670 VZ Nanbu, Toshikazu verfasserin aut Increase of Traction Coefficient due to Surface Microtexture 2007 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2007 Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. Traction Micro-EHL Continuously variable transmissions Traction drives Yasuda, Yoshiteru aut Ushijima, Kenshi aut Watanabe, Jun aut Zhu, Dong aut Enthalten in Tribology letters Springer US, 1995 29(2007), 2 vom: 18. Dez., Seite 105-118 (DE-627)221187790 (DE-600)1355921-7 (DE-576)06488354X 1023-8883 nnns volume:29 year:2007 number:2 day:18 month:12 pages:105-118 https://doi.org/10.1007/s11249-007-9287-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_70 AR 29 2007 2 18 12 105-118 |
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10.1007/s11249-007-9287-9 doi (DE-627)OLC2054474053 (DE-He213)s11249-007-9287-9-p DE-627 ger DE-627 rakwb eng 670 VZ Nanbu, Toshikazu verfasserin aut Increase of Traction Coefficient due to Surface Microtexture 2007 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC 2007 Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. Traction Micro-EHL Continuously variable transmissions Traction drives Yasuda, Yoshiteru aut Ushijima, Kenshi aut Watanabe, Jun aut Zhu, Dong aut Enthalten in Tribology letters Springer US, 1995 29(2007), 2 vom: 18. Dez., Seite 105-118 (DE-627)221187790 (DE-600)1355921-7 (DE-576)06488354X 1023-8883 nnns volume:29 year:2007 number:2 day:18 month:12 pages:105-118 https://doi.org/10.1007/s11249-007-9287-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_70 AR 29 2007 2 18 12 105-118 |
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Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. © Springer Science+Business Media, LLC 2007 |
| abstractGer |
Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. © Springer Science+Business Media, LLC 2007 |
| abstract_unstemmed |
Abstract Increasing the traction coefficient of a traction drive system is a key factor in obtaining a smaller, lighter unit and also greater torque capacity. This study focused on the microtexture of the rolling elements, and effect of microtexture was examined with the aim of improving the traction coefficient in the viscous region. Three textures—dimple, transverse, and longitudinal—were examined using a 4-roller tester that enabled tests to be conducted under high pressure and high rolling speed. As a result, it was found that the longitudinal surface texture is the best for improving the traction coefficient. The results obtained with EHL analysis showed that only the surface texture with longitudinal grooves increased the traction coefficient, just as in the tests conducted with the 4-roller tester. The longitudinal surface texture was optimized using the 4-roller tester. The test results made it clear that the groove depth, groove pitch, and also the radius of curvature of the convex portion of the rolling elements are important parameters of the longitudinal grooves for improving the traction coefficient while assuring high durability at the same time. An attempt was then made to increase the traction coefficient of an actual CVT variator by applying the optimized longitudinally grooved microtexture to the traction surfaces. The test results show that the traction coefficient can be increased without sacrificing durability by optimizing the surface microtexture. © Springer Science+Business Media, LLC 2007 |
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Increase of Traction Coefficient due to Surface Microtexture |
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https://doi.org/10.1007/s11249-007-9287-9 |
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Yasuda, Yoshiteru Ushijima, Kenshi Watanabe, Jun Zhu, Dong |
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Yasuda, Yoshiteru Ushijima, Kenshi Watanabe, Jun Zhu, Dong |
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10.1007/s11249-007-9287-9 |
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2024-07-03T23:17:19.419Z |
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