Railway bogie vibration analysis by mathematical simulation model and a scaled four-wheel railway bogie set
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Author list: Visayataksin N., Sooklamai M.
Publisher: IOP Publishing
Publication year: 2018
Volume number: 297
Issue number: 1
ISSN: 1757-8981
eISSN: 1757-899X
Languages: English-Great Britain (EN-GB)
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Abstract
The bogie is the part that connects and transfers all the load from the vehicle body onto the railway track; interestingly the interaction between wheels and rails is the critical point for derailment of the rail vehicles. However, observing or experimenting with real bogies on rail vehicles is impossible due to the operational rules and safety concerns. Therefore, this research aimed to develop a vibration analysis set for a four-wheel railway bogie by constructing a four-wheel bogie with scale of 1:4.5. The bogie structures, including wheels and axles, were made from an aluminium alloy, equipped with springs and dampers. The bogie was driven by an electric motor using 4 round wheels instead of 2 straight rails, with linear velocity between 0 to 11.22 m/s. The data collected from the vibration analysis set was compared to the mathematical simulation model to investigate the vibration behavior of the bogie, especially the hunting motion. The results showed that vibration behavior from a scaled four-wheel railway bogie set significantly agreed with the mathematical simulation model in terms of displacement and hunting frequency. The critical speed of the wheelset was found by executing the mathematical simulation model at 13 m/s. ฉ Published under licence by IOP Publishing Ltd.
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