Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles
In view of the coexistence of wheel profile wear (WPW) and wheel diameter difference (WDD) on an actual subway line, a dynamic analysis method based on coupling between WPW and equivalent in-phase WDD was proposed. Based on the measurements from a subway vehicle in operation on this line, dynamics m...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6694561 |
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| author | H. X. Li A. H. Zhu C. C. Ma P. W. Sun J. W. Yang K. Q. Zhang |
| author_facet | H. X. Li A. H. Zhu C. C. Ma P. W. Sun J. W. Yang K. Q. Zhang |
| author_sort | H. X. Li |
| collection | DOAJ |
| description | In view of the coexistence of wheel profile wear (WPW) and wheel diameter difference (WDD) on an actual subway line, a dynamic analysis method based on coupling between WPW and equivalent in-phase WDD was proposed. Based on the measurements from a subway vehicle in operation on this line, dynamics modeling and calculations were performed for a single carriage of this vehicle. Later, the interaction between the effects of WPW and equivalent in-phase WDD on the vehicle dynamic performance was analyzed, and the dynamic response in the presence of coupled damage was compared between the outer and inner wheels. Furthermore, the difference in the dynamic response caused by different positions of the larger-diameter wheels (i.e., on the inner track or outer track) was analyzed for the case where equivalent in-phase WDD occurred between the front and rear bogies. The results show that when the vehicle ran on a straight line, the coupling between WPW and WDD reduced the vehicle’s stability but improved its ride comfort. When the vehicle traveled on a curved line, it showed reductions in the lateral wheel/rail contact force, derailment coefficient, axle lateral force, and wear index if the outer wheels had a larger diameter. As a result, the deterioration of the vehicle’s dynamic performance due to the increasing degree of WPW slowed down, and its curve negotiation performance improved. Meanwhile, the outer wheels had significantly greater lateral wheel/rail contact force, derailment coefficient, and wear index compared to the inner wheels. When a −1 mm WDD was coupled with the worn wheel profile for 14 × 104 kilometers traveled, the dynamic performance indexes of the vehicle were close to or even exceeded the corresponding safety limits. The findings can provide technical support for subway vehicle maintenance. |
| format | Article |
| id | doaj-art-b9b9a770844e4dff9c8ec0fbb03d3821 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b9b9a770844e4dff9c8ec0fbb03d38212025-02-03T06:12:05ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66945616694561Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway VehiclesH. X. Li0A. H. Zhu1C. C. Ma2P. W. Sun3J. W. Yang4K. Q. Zhang5Beijing Key Laboratory of Performance Guarantee of Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaBeijing Key Laboratory of Performance Guarantee of Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaBeijing Key Laboratory of Performance Guarantee of Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaBeijing Key Laboratory of Performance Guarantee of Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaBeijing Key Laboratory of Performance Guarantee of Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaBeijing Key Laboratory of Performance Guarantee of Urban Rail Transit Vehicles, Beijing University of Civil Engineering and Architecture, Beijing 100044, ChinaIn view of the coexistence of wheel profile wear (WPW) and wheel diameter difference (WDD) on an actual subway line, a dynamic analysis method based on coupling between WPW and equivalent in-phase WDD was proposed. Based on the measurements from a subway vehicle in operation on this line, dynamics modeling and calculations were performed for a single carriage of this vehicle. Later, the interaction between the effects of WPW and equivalent in-phase WDD on the vehicle dynamic performance was analyzed, and the dynamic response in the presence of coupled damage was compared between the outer and inner wheels. Furthermore, the difference in the dynamic response caused by different positions of the larger-diameter wheels (i.e., on the inner track or outer track) was analyzed for the case where equivalent in-phase WDD occurred between the front and rear bogies. The results show that when the vehicle ran on a straight line, the coupling between WPW and WDD reduced the vehicle’s stability but improved its ride comfort. When the vehicle traveled on a curved line, it showed reductions in the lateral wheel/rail contact force, derailment coefficient, axle lateral force, and wear index if the outer wheels had a larger diameter. As a result, the deterioration of the vehicle’s dynamic performance due to the increasing degree of WPW slowed down, and its curve negotiation performance improved. Meanwhile, the outer wheels had significantly greater lateral wheel/rail contact force, derailment coefficient, and wear index compared to the inner wheels. When a −1 mm WDD was coupled with the worn wheel profile for 14 × 104 kilometers traveled, the dynamic performance indexes of the vehicle were close to or even exceeded the corresponding safety limits. The findings can provide technical support for subway vehicle maintenance.http://dx.doi.org/10.1155/2021/6694561 |
| spellingShingle | H. X. Li A. H. Zhu C. C. Ma P. W. Sun J. W. Yang K. Q. Zhang Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles Shock and Vibration |
| title | Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles |
| title_full | Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles |
| title_fullStr | Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles |
| title_full_unstemmed | Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles |
| title_short | Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles |
| title_sort | influence of wheel profile wear coupled with wheel diameter difference on the dynamic performance of subway vehicles |
| url | http://dx.doi.org/10.1155/2021/6694561 |
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