Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance
Active hydrostatic journal bearings represent a mechatronic answer to the fast-growing industrial needs to high-performance rotary machineries. The aim of this research is to study and improve the dynamic characteristics of hydrostatic bearing, with four pockets or recess. In order to improve dynami...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2018-04-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814018768142 |
| _version_ | 1819042502948159488 |
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| author | Waheed Ur Rehman Guiyun Jiang Yuanxin Luo Yongqin Wang Wakeel Khan Shafiq Ur Rehman Nadeem Iqbal |
| author_facet | Waheed Ur Rehman Guiyun Jiang Yuanxin Luo Yongqin Wang Wakeel Khan Shafiq Ur Rehman Nadeem Iqbal |
| author_sort | Waheed Ur Rehman |
| collection | DOAJ |
| description | Active hydrostatic journal bearings represent a mechatronic answer to the fast-growing industrial needs to high-performance rotary machineries. The aim of this research is to study and improve the dynamic characteristics of hydrostatic bearing, with four pockets or recess. In order to improve dynamic characteristics for hydrostatic journal bearing, this research presents an active hydrostatic journal bearing with servo control. The results of active hydrostatic journal bearing with servo control were compared with those of traditional hydrostatic journal bearing with capillary throttling. The dynamic characteristics of the newly proposed bearing and traditional bearing are studied and compared under different dynamic conditions such as variable speed, viscosity, load, pressure, and bearing clearance. The numerical result shows that the proposed active hydrostatic journal due to active lubrication has good performance including stability and controllability, high stiffness, faster response, and strong resistance. Furthermore, two strategies such as proportional–integral–derivative and integrator backstepping control are also presented to improve the performance and efficiency of active hydrostatic journal bearing with servo control. The result shows that integrator backstepping control is more effective than proportional–integral–derivative control in terms of faster response and greater amplitude reduction, quickly regaining equilibrium position, and good stiffness against load. Hence, it is observed that active lubrication in hydrostatic journal bearing provides us better dynamic characteristics which will have potential applications in heavy and high-speed machinery. |
| first_indexed | 2024-12-21T09:41:55Z |
| format | Article |
| id | doaj.art-d9c58dbe1cec4571a63830e2c6f4b191 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-21T09:41:55Z |
| publishDate | 2018-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-d9c58dbe1cec4571a63830e2c6f4b1912022-12-21T19:08:26ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402018-04-011010.1177/1687814018768142Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearanceWaheed Ur Rehman0Guiyun Jiang1Yuanxin Luo2Yongqin Wang3Wakeel Khan4Shafiq Ur Rehman5Nadeem Iqbal6The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, ChinaSchool of Mechanical Engineering, Chongqing University, Chongqing, ChinaThe State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, ChinaThe State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, ChinaSchool of Automation Science and Electrical Engineering, Beihang University, Beijing, ChinaDepartment of Chemistry, University of Agriculture Faisalabad, Faisalabad, PakistanThe State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, ChinaActive hydrostatic journal bearings represent a mechatronic answer to the fast-growing industrial needs to high-performance rotary machineries. The aim of this research is to study and improve the dynamic characteristics of hydrostatic bearing, with four pockets or recess. In order to improve dynamic characteristics for hydrostatic journal bearing, this research presents an active hydrostatic journal bearing with servo control. The results of active hydrostatic journal bearing with servo control were compared with those of traditional hydrostatic journal bearing with capillary throttling. The dynamic characteristics of the newly proposed bearing and traditional bearing are studied and compared under different dynamic conditions such as variable speed, viscosity, load, pressure, and bearing clearance. The numerical result shows that the proposed active hydrostatic journal due to active lubrication has good performance including stability and controllability, high stiffness, faster response, and strong resistance. Furthermore, two strategies such as proportional–integral–derivative and integrator backstepping control are also presented to improve the performance and efficiency of active hydrostatic journal bearing with servo control. The result shows that integrator backstepping control is more effective than proportional–integral–derivative control in terms of faster response and greater amplitude reduction, quickly regaining equilibrium position, and good stiffness against load. Hence, it is observed that active lubrication in hydrostatic journal bearing provides us better dynamic characteristics which will have potential applications in heavy and high-speed machinery.https://doi.org/10.1177/1687814018768142 |
| spellingShingle | Waheed Ur Rehman Guiyun Jiang Yuanxin Luo Yongqin Wang Wakeel Khan Shafiq Ur Rehman Nadeem Iqbal Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance Advances in Mechanical Engineering |
| title | Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance |
| title_full | Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance |
| title_fullStr | Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance |
| title_full_unstemmed | Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance |
| title_short | Control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance |
| title_sort | control of active lubrication for hydrostatic journal bearing by monitoring bearing clearance |
| url | https://doi.org/10.1177/1687814018768142 |
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