Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing
The elastic-supported tilting pad journal bearing brings new momentum and opportunities for improving the lubrication performance and dynamic stability of high-speed bearing–rotor systems. The objective of this study is to investigate the dynamic and lubrication characteristics of a dual parallel sp...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-03-01
|
| Series: | Lubricants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4442/13/3/120 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850091223740579840 |
|---|---|
| author | Yingze Jin Zhicai Wang Xuefei Zhao |
| author_facet | Yingze Jin Zhicai Wang Xuefei Zhao |
| author_sort | Yingze Jin |
| collection | DOAJ |
| description | The elastic-supported tilting pad journal bearing brings new momentum and opportunities for improving the lubrication performance and dynamic stability of high-speed bearing–rotor systems. The objective of this study is to investigate the dynamic and lubrication characteristics of a dual parallel spring-supported tilting pad journal bearing (DPSTPJB) system under unbalanced journal excitation. Considering the tilting angle and radial displacement of the pads, a 10-DOF dynamic model of the four-pad DPSTPJB system is established, accounting for the effects of unbalanced load, nonlinear fluid film force, and parallel spring force/moment. Numerical solutions are obtained for the dynamic responses of the journal and pads as well as the minimum film thickness and maximum film pressure. The effects of spring stiffness, stiffness ratio, and included angle on journal vibration, minimum film thickness, and maximum film pressure are revealed. The results show that the parallel spring parameters have a positive effect on the optimization of bearing performance with an optimal stiffness ratio that minimizes journal vibration and optimizes fluid film thickness and pressure. This research provides a theoretical basis for the optimization design and application of the DPSTPJB. |
| format | Article |
| id | doaj-art-d88895cd2f4947a79dc0514bb7268c6a |
| institution | DOAJ |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-d88895cd2f4947a79dc0514bb7268c6a2025-08-20T02:42:25ZengMDPI AGLubricants2075-44422025-03-0113312010.3390/lubricants13030120Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal BearingYingze Jin0Zhicai Wang1Xuefei Zhao2Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, ChinaNaval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, ChinaPanjin Power Supply Company, State Grid Liaoning Electric Power Co., Ltd., Panjin 124010, ChinaThe elastic-supported tilting pad journal bearing brings new momentum and opportunities for improving the lubrication performance and dynamic stability of high-speed bearing–rotor systems. The objective of this study is to investigate the dynamic and lubrication characteristics of a dual parallel spring-supported tilting pad journal bearing (DPSTPJB) system under unbalanced journal excitation. Considering the tilting angle and radial displacement of the pads, a 10-DOF dynamic model of the four-pad DPSTPJB system is established, accounting for the effects of unbalanced load, nonlinear fluid film force, and parallel spring force/moment. Numerical solutions are obtained for the dynamic responses of the journal and pads as well as the minimum film thickness and maximum film pressure. The effects of spring stiffness, stiffness ratio, and included angle on journal vibration, minimum film thickness, and maximum film pressure are revealed. The results show that the parallel spring parameters have a positive effect on the optimization of bearing performance with an optimal stiffness ratio that minimizes journal vibration and optimizes fluid film thickness and pressure. This research provides a theoretical basis for the optimization design and application of the DPSTPJB.https://www.mdpi.com/2075-4442/13/3/120tilting pad journal bearingdual parallel springhydrodynamic lubricationdynamic analysisunbalanced load |
| spellingShingle | Yingze Jin Zhicai Wang Xuefei Zhao Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing Lubricants tilting pad journal bearing dual parallel spring hydrodynamic lubrication dynamic analysis unbalanced load |
| title | Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing |
| title_full | Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing |
| title_fullStr | Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing |
| title_full_unstemmed | Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing |
| title_short | Dynamic Analysis of Dual Parallel Spring-Supported Tilting Pad Journal Bearing |
| title_sort | dynamic analysis of dual parallel spring supported tilting pad journal bearing |
| topic | tilting pad journal bearing dual parallel spring hydrodynamic lubrication dynamic analysis unbalanced load |
| url | https://www.mdpi.com/2075-4442/13/3/120 |
| work_keys_str_mv | AT yingzejin dynamicanalysisofdualparallelspringsupportedtiltingpadjournalbearing AT zhicaiwang dynamicanalysisofdualparallelspringsupportedtiltingpadjournalbearing AT xuefeizhao dynamicanalysisofdualparallelspringsupportedtiltingpadjournalbearing |