A vision for a lightweight railway wheelset of the future
A vision for a lightweight railway wheelset of the future
复制标题
DOI：
10.1177/09544097221080619
复制
发表时间：
2022-04
期刊：
影响因子：
--
通讯作者：
S. Bruni;P. J. Mistry;Michael S. Johnson;A. Bernasconi;M. Carboni;Davide Formaggioni;Guido Carra;Sergio Macchiavello;E. Ferrante;I. Kaiser;J. Viñolas;Irene Marazzi
中科院分区：
文献类型：
--
作者：
S. Bruni;P. J. Mistry;Michael S. Johnson;A. Bernasconi;M. Carboni;Davide Formaggioni;Guido Carra;Sergio Macchiavello;E. Ferrante;I. Kaiser;J. Viñolas;Irene Marazzi
利用纤维增强聚合物复合材料实现轨道车辆轻量化是未来轨道交通发展的必然趋势。这被认为是通过降低能源消耗来减少二氧化碳排放的一种手段，同时也减少了对轨道退化的影响，从而提高了铁路的运力和性能。本文概述了NEXTGEAR项目工作包三内开展的工作，重点是“未来轮对”。提出了金属-复合材料混合铁路轴的三个概念，并对其优缺点进行了分析。对所选概念进行了有限元分析，并给出了连接车轮和轴承的金属环的结合部的求解方案。车轴质量减少了63%以上。本文还概述了车轴的可制造性分析、车轴检查/结构健康监测的非破坏性方法以及压载石撞击的影响。最后，基于车辆动力学的多体仿真，对减少非簧载质量所带来的好处进行了初步评估。
Rail vehicle lightweighting using fibre reinforced polymer composite materials is essential for the future of rail. This is recognised as a means of reducing carbon dioxide production through lower energy consumption, as well as reducing the impact on track degradation, thus delivering improved rail capacity and performance. This paper presents an overview of the work conducted within work package three of the NEXTGEAR project focused on the ‘wheelset of the future’. Three concepts for a hybrid metallic-composite railway axle are proposed and their strengths and weaknesses are assessed. A finite element analysis on the selected concept was conducted, including a solution for the bonded joints of the metallic collars which provide the interface to the wheels and bearings. An axle mass reduction of over 63% was shown. An overview is also provided regarding the analysis of manufacturability of the axle, non-destructive methods for axle inspection/structural health monitoring and effects of impacts from ballast stones. Finally, a preliminary evaluation of the benefits arising from the reduction of the unsprung masses is provided, based on multibody simulations of vehicle dynamics.