Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing
A direct-lubrication tilting pad bearing with a diameter of 120mm is tested to clarify the effect of the oil flow rate on the characteristics of the bearing. Measured characteristics are the bearing temperature and dynamic characteristics, namely, bearing stiffness and damping coefficients. The appl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2020-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/86/892/86_20-00218/_pdf/-char/en |
| _version_ | 1811308674606432256 |
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| author | Makoto HEMMI Naohiko TAKAHASHI Tomoaki YAMASHITA |
| author_facet | Makoto HEMMI Naohiko TAKAHASHI Tomoaki YAMASHITA |
| author_sort | Makoto HEMMI |
| collection | DOAJ |
| description | A direct-lubrication tilting pad bearing with a diameter of 120mm is tested to clarify the effect of the oil flow rate on the characteristics of the bearing. Measured characteristics are the bearing temperature and dynamic characteristics, namely, bearing stiffness and damping coefficients. The applied load and the peripheral speed, as well as, oil flow rate are changed. The higher the oil flow rate is, the lower the bearing temperature is. At the specific load of 1.0 MPa and the peripheral speed of 90 m/s, the bearing temperature at the oil flow rate of 14 L/min is 102 ℃, while it is 83 ℃ at 42 L/min, and the difference is as much as 19 degree centigrade. Dynamic characteristics measured are also variable with respect to the amount of oil flow rate. The lower the oil flow rate is, the lower the damping coefficients are. As for stiffness, the values at oil flow rate of 14 or 28 L/min can be lower or higher than that at high oil flow rate of 42 L/min. |
| first_indexed | 2024-04-13T09:27:29Z |
| format | Article |
| id | doaj.art-2b9378f8b7044b70aff178572a4b4378 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-13T09:27:29Z |
| publishDate | 2020-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-2b9378f8b7044b70aff178572a4b43782022-12-22T02:52:22ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612020-12-018689220-0021820-0021810.1299/transjsme.20-00218transjsmeEffects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearingMakoto HEMMI0Naohiko TAKAHASHI1Tomoaki YAMASHITA2Center for Technology Innovation - Mechanical Engineering, Research & Development Group, Hitachi Ltd.Hitachi Industrial Products, Ltd.Center for Technology Innovation - Mechanical Engineering, Research & Development Group, Hitachi Ltd.A direct-lubrication tilting pad bearing with a diameter of 120mm is tested to clarify the effect of the oil flow rate on the characteristics of the bearing. Measured characteristics are the bearing temperature and dynamic characteristics, namely, bearing stiffness and damping coefficients. The applied load and the peripheral speed, as well as, oil flow rate are changed. The higher the oil flow rate is, the lower the bearing temperature is. At the specific load of 1.0 MPa and the peripheral speed of 90 m/s, the bearing temperature at the oil flow rate of 14 L/min is 102 ℃, while it is 83 ℃ at 42 L/min, and the difference is as much as 19 degree centigrade. Dynamic characteristics measured are also variable with respect to the amount of oil flow rate. The lower the oil flow rate is, the lower the damping coefficients are. As for stiffness, the values at oil flow rate of 14 or 28 L/min can be lower or higher than that at high oil flow rate of 42 L/min.https://www.jstage.jst.go.jp/article/transjsme/86/892/86_20-00218/_pdf/-char/entilting pad journal bearingdirected lubricationstiffnessdampingoil flow rate |
| spellingShingle | Makoto HEMMI Naohiko TAKAHASHI Tomoaki YAMASHITA Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing Nihon Kikai Gakkai ronbunshu tilting pad journal bearing directed lubrication stiffness damping oil flow rate |
| title | Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing |
| title_full | Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing |
| title_fullStr | Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing |
| title_full_unstemmed | Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing |
| title_short | Effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing |
| title_sort | effects of oil flow rate on temperature and dynamic properties of direct lubricated titlting pad journal bearing |
| topic | tilting pad journal bearing directed lubrication stiffness damping oil flow rate |
| url | https://www.jstage.jst.go.jp/article/transjsme/86/892/86_20-00218/_pdf/-char/en |
| work_keys_str_mv | AT makotohemmi effectsofoilflowrateontemperatureanddynamicpropertiesofdirectlubricatedtitltingpadjournalbearing AT naohikotakahashi effectsofoilflowrateontemperatureanddynamicpropertiesofdirectlubricatedtitltingpadjournalbearing AT tomoakiyamashita effectsofoilflowrateontemperatureanddynamicpropertiesofdirectlubricatedtitltingpadjournalbearing |