Improving the dynamic performance of container carrying freight wagons

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Abstract

Container carrying wagons have in the past been designed with bogies based on designs developed for bulk freight wagons. The Y25 bogie is one of the most commonly used freight bogies; this bogie has a primary vertical suspension with nested ‘tare’ and ‘laden’ springs and friction damping proportional to the load carried by the ‘tare’ spring. These bogies work well for tare and fully laden, but for container wagons which can carry intermediate loads the damping can be less than optimal. This can be a problem when these vehicle travel over track containing cyclic top defects. The solution is to slightly increase the damping for intermediate loads by changing the ‘tare’ spring to a variable rate spring. Simulations carried out in this study show that the proposed arrangement would give good dynamic performance for an example 40-foot (13m) wagon, when travelling over cyclic top considering the whole loading range.
Original languageEnglish
Title of host publicationProceedings of 2nd International Conference on Rail Transportation ICRT 2021
Number of pages10
Publication statusAccepted/In press - 15 Jan 2021
EventThe Second International Conference on Rail Transportation - Southwest Jiaotong University, Chengdu, China
Duration: 5 Jul 20216 Jul 2021
http://www.icrt.org.cn

Conference

ConferenceThe Second International Conference on Rail Transportation
Abbreviated titleICRT
CountryChina
CityChengdu
Period5/07/216/07/21
Internet address

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