Research on Vibration Damage of Urban Rail Vehicles
In view of the current situation of multiple damage accidents of metro vehicle parts, especially the fault of parking braking pipe line, the vibration damage analysis was carried out. Based on the characteristics of high cycle fatigue, the causes of fault of parking brake pipe line were analyzed by...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2019-07-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2019.04.026 |
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| Summary: | In view of the current situation of multiple damage accidents of metro vehicle parts, especially the fault of parking braking pipe line, the vibration damage analysis was carried out. Based on the characteristics of high cycle fatigue, the causes of fault of parking brake pipe line were analyzed by the vibration test method of the rail and wheelset when the wheel pair passed through the rail welded joint. By means of modal analysis, wheel-rail force test, wheel-rail vibration test, and parking brake tube dynamic stress test, the number of welded joints and the wheel-rail force generated by uneven smoothness of rails were analyzed, and the relationship between welded joints and wheel-rail vibration was deduced. Then the vibration damage of the vehicle parts caused by the unsmooth welding joint was obtained. At the same time, the influence of orbital maintenance strategy on vehicle vibration damage was studied and some reasonable suggestions and countermeasures were put forward. |
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| ISSN: | 1000-128X |