Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors
The installation quality of a propulsion shaft system directly affects the lubrication statuses of the bearings. The quality of the shaft system installation not only affects the progress of ship construction, but also the safety, stability, and reliability of the shaft system. This article takes sl...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Lubricants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4442/11/11/478 |
| _version_ | 1797458673600036864 |
|---|---|
| author | Taiwei Yang Hanhua Zhu Shidong Fan Jie Wu Junlang Yuan Liangyan Zheng |
| author_facet | Taiwei Yang Hanhua Zhu Shidong Fan Jie Wu Junlang Yuan Liangyan Zheng |
| author_sort | Taiwei Yang |
| collection | DOAJ |
| description | The installation quality of a propulsion shaft system directly affects the lubrication statuses of the bearings. The quality of the shaft system installation not only affects the progress of ship construction, but also the safety, stability, and reliability of the shaft system. This article takes sliding bearings in ship shafting as the research object and establishes a hydrodynamic lubrication model of sliding bearings while considering installation errors to address the issue of installation errors of ship stern bearings. The finite difference method and super-relaxation iteration method are used to solve the problem, and the influences of bearing installation errors on bearing lubrication characteristic parameters are explored. An installation error of the stern bearing can lead to an increase in the film pressure at both ends of the stern bearing in the axial direction, leading to a decrease in the lubrication status of the bearing. Poor lubrication and wear faults of the stern bearing are prone to occur at both ends of the stern bearing. As the installation error of the stern bearing increases, the minimum film thickness of the stern bearing decreases and the maximum film pressure increases, and as the installation error increases, the sensitivity of the aft stern bearing to the vertical installation error is greater than that of the lateral installation error, and the sensitivity of the fore stern bearing to the lateral installation error is greater than that of the vertical installation error. The sensitivity of the lateral and vertical film forces at both ends of the aft stern bearing and the fore stern bearing is greater than that of the middle part; the installation error of bearings has a significant impact on the lubrication characteristics of bearings. |
| first_indexed | 2024-03-09T16:40:31Z |
| format | Article |
| id | doaj.art-d224790b2e8f49a3a507a58ffd01800e |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-09T16:40:31Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-d224790b2e8f49a3a507a58ffd01800e2023-11-24T14:52:48ZengMDPI AGLubricants2075-44422023-11-01111147810.3390/lubricants11110478Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation ErrorsTaiwei Yang0Hanhua Zhu1Shidong Fan2Jie Wu3Junlang Yuan4Liangyan Zheng5School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430070, ChinaCollege of Marine Engineering, Jimei University, Xiamen 361021, ChinaThe installation quality of a propulsion shaft system directly affects the lubrication statuses of the bearings. The quality of the shaft system installation not only affects the progress of ship construction, but also the safety, stability, and reliability of the shaft system. This article takes sliding bearings in ship shafting as the research object and establishes a hydrodynamic lubrication model of sliding bearings while considering installation errors to address the issue of installation errors of ship stern bearings. The finite difference method and super-relaxation iteration method are used to solve the problem, and the influences of bearing installation errors on bearing lubrication characteristic parameters are explored. An installation error of the stern bearing can lead to an increase in the film pressure at both ends of the stern bearing in the axial direction, leading to a decrease in the lubrication status of the bearing. Poor lubrication and wear faults of the stern bearing are prone to occur at both ends of the stern bearing. As the installation error of the stern bearing increases, the minimum film thickness of the stern bearing decreases and the maximum film pressure increases, and as the installation error increases, the sensitivity of the aft stern bearing to the vertical installation error is greater than that of the lateral installation error, and the sensitivity of the fore stern bearing to the lateral installation error is greater than that of the vertical installation error. The sensitivity of the lateral and vertical film forces at both ends of the aft stern bearing and the fore stern bearing is greater than that of the middle part; the installation error of bearings has a significant impact on the lubrication characteristics of bearings.https://www.mdpi.com/2075-4442/11/11/478ship shaftingstern bearinginstallation errorlubrication status |
| spellingShingle | Taiwei Yang Hanhua Zhu Shidong Fan Jie Wu Junlang Yuan Liangyan Zheng Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors Lubricants ship shafting stern bearing installation error lubrication status |
| title | Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors |
| title_full | Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors |
| title_fullStr | Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors |
| title_full_unstemmed | Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors |
| title_short | Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors |
| title_sort | research on lubrication characteristics of ship stern bearings considering bearing installation errors |
| topic | ship shafting stern bearing installation error lubrication status |
| url | https://www.mdpi.com/2075-4442/11/11/478 |
| work_keys_str_mv | AT taiweiyang researchonlubricationcharacteristicsofshipsternbearingsconsideringbearinginstallationerrors AT hanhuazhu researchonlubricationcharacteristicsofshipsternbearingsconsideringbearinginstallationerrors AT shidongfan researchonlubricationcharacteristicsofshipsternbearingsconsideringbearinginstallationerrors AT jiewu researchonlubricationcharacteristicsofshipsternbearingsconsideringbearinginstallationerrors AT junlangyuan researchonlubricationcharacteristicsofshipsternbearingsconsideringbearinginstallationerrors AT liangyanzheng researchonlubricationcharacteristicsofshipsternbearingsconsideringbearinginstallationerrors |