Research on Small Radius Curve Negotiation and Key Parameters of Tram
To research the small radius curve negotiation of the tram, the motion equation of a free wheelset passing through curve was firstly derived. In theoretically, the influence of the wheel-rail contact friction coefficient, the gauge distance and the curve radius on the curve passing performance was c...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2021-07-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2021.04.003 |
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| Summary: | To research the small radius curve negotiation of the tram, the motion equation of a free wheelset passing through curve was firstly derived. In theoretically, the influence of the wheel-rail contact friction coefficient, the gauge distance and the curve radius on the curve passing performance was clarified. Taking the five-module low-floor tram as an example, a dynamic simulation model was established, and the accuracy of the model was verified by a field test. Finally, the variation of small radius curve negotiation of the tram was analyzed from the perspectives of wheel-rail lubrication, gauge widening and curve radius. The research results show that the wheel-rail lubrication has a significant influence on the curve passing performance of the tram and the safety index can be improved obviously. Besides, the gauge widening has a certain influence on the small radius curve negotiation of the tram, and there is a reasonable range of values. Curve radius has obvious implications for curve negotiation. With the increase of the curve radius, the safety coefficient decreases obviously. The increase of the curve radius can not only reduce the safety indicators of the tram, but also improve the passing speed of the curve. |
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| ISSN: | 1000-128X |