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• LIGTHWEIGHT STRUCTURE OF HIGH SPEED TRAIN (TALGO) CARBODY. COMPOSITE IN RAILWAY ROLLING STOCK

  F. Garcia*, E. Guerra, M. Cerdeira, J. Fernández, . V.Meroño, . C.Eraso, . J.Arrabal, . X.Valor, . B.López, . M.Ordoñez, . M.Seco

  Materiales Compuestos (2024). Vol. 08 - COMUNICACIONES MATCOMP21 (2022) Y MATCOMP23 (2023), (Núm. 6 - Fabricación y Aplicaciones Industriales), 40

  
  

  Abstract

  Currently, the railway sector demands novel lighter designs for the structural components of rolling stock that compensate for the increase in weight due both to the incorporation of new technologies for passenger comfort and experience, as well as to face new environmental challenges (reduction of emissions, consumption power, etc). With this objective in mind, Aernnova-Talgo-FIDAMC-Tecnalia have proceeded to develop a car body structure design for a high-speed passenger car that introduces up to 70% of high-performance composite material (CFRP). This makes it possible to achieve weight reductions of more than 20% when it is compared to the original 100% aluminum structure. The solution combines frame, sidewalls and roof in an integral solution in CFRP with the usual solution in welded aluminum for the closing endwalls. The use of composite material for these structures also implies the introduction of non-conventional manufacturing methods for the railway sector (Semipreg-Sandwich-Pultrusion) with curing outside of autoclave and compliance with the demanding fire and smoke requirements of the EN 45545. The final objective of the project is the bench validation of the prototype according to the usual standards of the railway sector, EN 12663.

  Abstract
  Currently, the railway sector demands novel lighter designs for the structural components of rolling stock that compensate for the increase in weight due both to the incorporation [...]

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• Ligthweigth (Talgo) high speed rodal frame. Composites in high responsability rail components

  F. Piñeiro*, J. Valverde, V. Meroño, F. García Piñeiro

  Materiales Compuestos (2022). Vol. 07 - COMUNICACIONES MATCOMP21 (2022), (Núm. 2 - Aplicaciones Industriales - Caracterización), 169

  
  

  Abstract

  Nowadays, the railway sector demands new lighter designs in the structural components of rolling stock that compensate for its increase due to the incorporation of new technologies, to improve passenger comfort and experience, as well as to face new environmental challenges (reduction emissions, energy consumption, increased capacity, etc.). With this objective, Talgo introduces a frame in high-performance composite material (CFRP) in its rolling elements (wheels) for high-speed trains, traditionally made of metal (steel), which allows weight saving of over 45%. However, the introduction of new materials is subject to overcoming certain challenges: compliance with fire requirements, adaptation of existing regulations, ballast impact behavior, direct cost increase, etc. This project consists of different phases: a) design, in accordance with the requirements demanded by current standards, b) manufacture of prototypes, c) process of characterization and verification of properties of non-standard materials, d) testing of component validation equivalent to what is required of a conventional frame (static resistance and fatigue test up to 10 million cycles in accordance with existing regulations), and, finally, e) track tests.

  Abstract
  Nowadays, the railway sector demands new lighter designs in the structural components of rolling stock that compensate for its increase due to the incorporation of new technologies, [...]

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