Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis
In rotating machinery, unbalanced mass is one of the most common causes of system vibration. This paper presents an experimental investigation of the unbalance response of a gas foil bearing-rotor system, based on a 30 kW-rated commercial hydrogen fuel cell vehicle air compressor. The study examines...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-04-01
|
| Series: | Lubricants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4442/13/4/181 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849713408142737408 |
|---|---|
| author | Ming Ying Xinghua Liu |
| author_facet | Ming Ying Xinghua Liu |
| author_sort | Ming Ying |
| collection | DOAJ |
| description | In rotating machinery, unbalanced mass is one of the most common causes of system vibration. This paper presents an experimental investigation of the unbalance response of a gas foil bearing-rotor system, based on a 30 kW-rated commercial hydrogen fuel cell vehicle air compressor. The study examines the response of the system to varying unbalanced masses at different rotational speeds. Experimental results show that, after adding unbalanced mass, subsynchronous vibration of the rotor is relatively slight, while synchronous vibration is the main source of vibration; when unbalanced mass is added to one side of the rotor, the synchronous vibration on that side initially decreases and then increases with speed, while synchronous vibration on the opposite side continuously increases with speed; when unbalanced mass is added to both sides, the synchronous vibration on each side increases with the phase difference of the unbalanced mass at low speed, while the opposite trend occurs at high speed. The analysis of the gas foil bearing-rotor system dynamics model established based on the dynamic coefficient of the bearing shows that the bending of the rotor offsets the displacement caused by the unbalanced mass, which is the primary reason for the nonlinear behavior of the synchronous vibration of the rotor. These findings contribute to an improved understanding of GFB-rotor interactions under unbalanced conditions and provide practical guidance for optimizing dynamic balancing strategies in hydrogen fuel cell vehicle compressors. |
| format | Article |
| id | doaj-art-e9b86353509e46e191fc409cc33af757 |
| institution | DOAJ |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-e9b86353509e46e191fc409cc33af7572025-08-20T03:13:58ZengMDPI AGLubricants2075-44422025-04-0113418110.3390/lubricants13040181Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and AnalysisMing Ying0Xinghua Liu1School of Intelligent Equipment Engineering, Wuxi Taihu University, Wuxi 214064, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaIn rotating machinery, unbalanced mass is one of the most common causes of system vibration. This paper presents an experimental investigation of the unbalance response of a gas foil bearing-rotor system, based on a 30 kW-rated commercial hydrogen fuel cell vehicle air compressor. The study examines the response of the system to varying unbalanced masses at different rotational speeds. Experimental results show that, after adding unbalanced mass, subsynchronous vibration of the rotor is relatively slight, while synchronous vibration is the main source of vibration; when unbalanced mass is added to one side of the rotor, the synchronous vibration on that side initially decreases and then increases with speed, while synchronous vibration on the opposite side continuously increases with speed; when unbalanced mass is added to both sides, the synchronous vibration on each side increases with the phase difference of the unbalanced mass at low speed, while the opposite trend occurs at high speed. The analysis of the gas foil bearing-rotor system dynamics model established based on the dynamic coefficient of the bearing shows that the bending of the rotor offsets the displacement caused by the unbalanced mass, which is the primary reason for the nonlinear behavior of the synchronous vibration of the rotor. These findings contribute to an improved understanding of GFB-rotor interactions under unbalanced conditions and provide practical guidance for optimizing dynamic balancing strategies in hydrogen fuel cell vehicle compressors.https://www.mdpi.com/2075-4442/13/4/181gas foil bearingunbalance responsehydrogen fuel cell vehicleair compressor |
| spellingShingle | Ming Ying Xinghua Liu Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis Lubricants gas foil bearing unbalance response hydrogen fuel cell vehicle air compressor |
| title | Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis |
| title_full | Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis |
| title_fullStr | Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis |
| title_full_unstemmed | Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis |
| title_short | Unbalance Response of a Hydrogen Fuel Cell Vehicle Air Compressor Rotor Supported by Gas Foil Bearings: Experimental Study and Analysis |
| title_sort | unbalance response of a hydrogen fuel cell vehicle air compressor rotor supported by gas foil bearings experimental study and analysis |
| topic | gas foil bearing unbalance response hydrogen fuel cell vehicle air compressor |
| url | https://www.mdpi.com/2075-4442/13/4/181 |
| work_keys_str_mv | AT mingying unbalanceresponseofahydrogenfuelcellvehicleaircompressorrotorsupportedbygasfoilbearingsexperimentalstudyandanalysis AT xinghualiu unbalanceresponseofahydrogenfuelcellvehicleaircompressorrotorsupportedbygasfoilbearingsexperimentalstudyandanalysis |