Abnormal Vibration Analysis of Low-floor Tram
For the 100% low-floor tram with five modules, the vertical stability index was abnormal at 40 km/h speed. In order to explore the cause, the field test was carried out. The test result indicated that the eccentric frequency of the wheel resonates with the natural modal frequency of the tram. Then t...
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| Format: | Article |
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Editorial Department of Electric Drive for Locomotives
2020-09-01
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| Series: | 机车电传动 |
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| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.04.121 |
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| _version_ | 1849729281377173504 |
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| author | Shuo LYU Huanyun DAI Qunsheng WANG |
| author_facet | Shuo LYU Huanyun DAI Qunsheng WANG |
| author_sort | Shuo LYU |
| collection | DOAJ |
| description | For the 100% low-floor tram with five modules, the vertical stability index was abnormal at 40 km/h speed. In order to explore the cause, the field test was carried out. The test result indicated that the eccentric frequency of the wheel resonates with the natural modal frequency of the tram. Then the PolyMax algorithm was used to identify the modal parameters, and the vertical natural mode with the main frequency of 5.85 Hz was obtained, which was presented as the nodding and floating between the five car-bodies. By establishing a vehicle dynamics model, the influence of the wheel on the different eccentricity is analyzed, and the vertical ride comfort is greatly improved by optimizing parameters of inter-vehicle longitudinal damper and secondary vertical damper. When the damping is 24 MN·s/m and the node stiffness is 20~30 MN/m in the secondary vertical damper, the vertical stability index is about 1.9, which can basically eliminate the influence of abnormal vibration. |
| format | Article |
| id | doaj-art-ee8b878f2d3d4b9c96ba48e6e67f6e8c |
| institution | DOAJ |
| issn | 1000-128X |
| language | zho |
| publishDate | 2020-09-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-ee8b878f2d3d4b9c96ba48e6e67f6e8c2025-08-20T03:09:16ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2020-09-0113814320922351Abnormal Vibration Analysis of Low-floor TramShuo LYUHuanyun DAIQunsheng WANGFor the 100% low-floor tram with five modules, the vertical stability index was abnormal at 40 km/h speed. In order to explore the cause, the field test was carried out. The test result indicated that the eccentric frequency of the wheel resonates with the natural modal frequency of the tram. Then the PolyMax algorithm was used to identify the modal parameters, and the vertical natural mode with the main frequency of 5.85 Hz was obtained, which was presented as the nodding and floating between the five car-bodies. By establishing a vehicle dynamics model, the influence of the wheel on the different eccentricity is analyzed, and the vertical ride comfort is greatly improved by optimizing parameters of inter-vehicle longitudinal damper and secondary vertical damper. When the damping is 24 MN·s/m and the node stiffness is 20~30 MN/m in the secondary vertical damper, the vertical stability index is about 1.9, which can basically eliminate the influence of abnormal vibration.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.04.121low-floor tramabnormal vibration of the vehiclemodal analysisdynamics simulationurban rail transit |
| spellingShingle | Shuo LYU Huanyun DAI Qunsheng WANG Abnormal Vibration Analysis of Low-floor Tram 机车电传动 low-floor tram abnormal vibration of the vehicle modal analysis dynamics simulation urban rail transit |
| title | Abnormal Vibration Analysis of Low-floor Tram |
| title_full | Abnormal Vibration Analysis of Low-floor Tram |
| title_fullStr | Abnormal Vibration Analysis of Low-floor Tram |
| title_full_unstemmed | Abnormal Vibration Analysis of Low-floor Tram |
| title_short | Abnormal Vibration Analysis of Low-floor Tram |
| title_sort | abnormal vibration analysis of low floor tram |
| topic | low-floor tram abnormal vibration of the vehicle modal analysis dynamics simulation urban rail transit |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.04.121 |
| work_keys_str_mv | AT shuolyu abnormalvibrationanalysisoflowfloortram AT huanyundai abnormalvibrationanalysisoflowfloortram AT qunshengwang abnormalvibrationanalysisoflowfloortram |