Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission
The elastohydrodynamic lubrication model of gear rack transmission is established,considering the gear that is modified and thermal effect,comprehensively considering the variation of equivalent radius of curvature,entrainment velocity and the alternating load along the line of action and the gear t...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2017-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.11.021 |
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| author | Xu Caihong Wang Youqiang Zhang Tonggang Wang Limei |
| author_facet | Xu Caihong Wang Youqiang Zhang Tonggang Wang Limei |
| author_sort | Xu Caihong |
| collection | DOAJ |
| description | The elastohydrodynamic lubrication model of gear rack transmission is established,considering the gear that is modified and thermal effect,comprehensively considering the variation of equivalent radius of curvature,entrainment velocity and the alternating load along the line of action and the gear tooth modification,the numerical solution of unsteady-state elastohydrodynamic lubrication of the gear rack with time-dependent loads is analyzed. The influence of modified coefficient on the oil film pressure and film thickness of the gear rack is studied and the influence of positive modification and negative modification on central film thickness and minimum film thickness are also analyzed. The results show that the positive modification could reduce the oil film pressure and increase the film thickness which could improve the lubrication of the gear rack,negative modification causes the oil film pressure rises and the film thickness become thinner. Therefore,in order to in accordance with the requirements of the premise when designing the gear rack mechanism,the positive modification gear should be selected to avoid the negative modification gear. |
| format | Article |
| id | doaj-art-9e142077cd5d4928933b66533bf72c37 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-9e142077cd5d4928933b66533bf72c372025-01-10T14:20:19ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392017-01-014110611029933153Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack TransmissionXu CaihongWang YouqiangZhang TonggangWang LimeiThe elastohydrodynamic lubrication model of gear rack transmission is established,considering the gear that is modified and thermal effect,comprehensively considering the variation of equivalent radius of curvature,entrainment velocity and the alternating load along the line of action and the gear tooth modification,the numerical solution of unsteady-state elastohydrodynamic lubrication of the gear rack with time-dependent loads is analyzed. The influence of modified coefficient on the oil film pressure and film thickness of the gear rack is studied and the influence of positive modification and negative modification on central film thickness and minimum film thickness are also analyzed. The results show that the positive modification could reduce the oil film pressure and increase the film thickness which could improve the lubrication of the gear rack,negative modification causes the oil film pressure rises and the film thickness become thinner. Therefore,in order to in accordance with the requirements of the premise when designing the gear rack mechanism,the positive modification gear should be selected to avoid the negative modification gear.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.11.021Gear rackModificationEHLLoad time-dependentThermal effect |
| spellingShingle | Xu Caihong Wang Youqiang Zhang Tonggang Wang Limei Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission Jixie chuandong Gear rack Modification EHL Load time-dependent Thermal effect |
| title | Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission |
| title_full | Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission |
| title_fullStr | Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission |
| title_full_unstemmed | Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission |
| title_short | Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission |
| title_sort | analysis of thermal elastohydrodynamic lubrication of modified gear rack transmission |
| topic | Gear rack Modification EHL Load time-dependent Thermal effect |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.11.021 |
| work_keys_str_mv | AT xucaihong analysisofthermalelastohydrodynamiclubricationofmodifiedgearracktransmission AT wangyouqiang analysisofthermalelastohydrodynamiclubricationofmodifiedgearracktransmission AT zhangtonggang analysisofthermalelastohydrodynamiclubricationofmodifiedgearracktransmission AT wanglimei analysisofthermalelastohydrodynamiclubricationofmodifiedgearracktransmission |