Research on running system of a 100% low floor virtual rail train
Virtual rail train is a product of the integration of railway vehicles and buses. It uses the principle of photoelectricity or electromagnetism to identify the virtual track set on the road surface and drive along it. In order to make virtual rail train with 100% low-floor rate and meet actual opera...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2022-07-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2022.04.004 |
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| Summary: | Virtual rail train is a product of the integration of railway vehicles and buses. It uses the principle of photoelectricity or electromagnetism to identify the virtual track set on the road surface and drive along it. In order to make virtual rail train with 100% low-floor rate and meet actual operation requirements power, a running system of wheel hub motor drive and independent suspension structure was designed. In view of this newly designed running system structure, the dynamic envelope calculation method was used to check the rationality of the running system structure layout. The finite element model of suspension system was established by using the finite element analysis software ANSYS to analyze the static strength and fatigue strength of the main load-bearing parts such as kingpin, steering knuckle, upper and lower cross arms and their mounting pins. The dynamic calculation model of virtual track train was established by UM software, and the stability and comfort of virtual track train equipped with this running system were simulated and analyzed. The calculation and analysis results show that there is no interference between the parts of the running system and the utilization of structural space is reasonable; The maximum Von-Mises stress of the main load-bearing parts is less than the yield strength of the corresponding material under various static load conditions, and under the fatigue load condition, the material utilization rate of the main load-bearing parts is less than 1, that is, the static strength and fatigue strength of the suspension system meet the standard requirements; The stability and comfort indexes of the train increase with the increase of speed, but within the range of the maximum test speed (80 km/h), the stability indexes are less than 2.5, belonging to the excellent level, and the comfort index is less than 2.5, belonging to the comfort level. Therefore, the structure design of the virtual track train running system is reasonable, and the parameter setting meets the requirements of dynamic performance.. |
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| ISSN: | 1000-128X |