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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2021
License: CC BY NC SA
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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2021
License: CC BY NC SA
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Tension study of a carbon fiber bogie frame

Authors: Alfaro, Abelardo José;

Tension study of a carbon fiber bogie frame

Abstract

El bogie es uno de los componentes esenciales que constituye un tren. Permite que el tren vaya en las vías, sostiene el peso del coche, de los pasajeros, resiste las fuerzas que aparecen cuando: en movimiento, acelerando y frenando mientras asegurando que el pasajero este cómodo durante el viaje. A lo largo de los años, el bogie se modifica varias veces – desde el transporte de mercancías, los trenes de alta velocidad, los “trenes ligeros”, entre otros. Estos diseños están hechos para que el tren se especialice en una tasca en concreto o mejorarlo de alguna manera como puede ser: ser más eficiente, conseguir producir menos emisiones, o reducir el coste en total. Todos estos factores son importantes cuando se diseña un bogie El enfoque central de este TFE es el estudio de las fuerzas que aparecen en la estructura mientras esta en uso, además de cómo se compara fibra de carbono con el acero estructura S235 como material primario de la estructura. En la industria ferroviaria hay una iniciativa de reducir las emisiones de CO2 hasta un 55% para el año 2030, y en el año 2050 el objetivo es aumentarlo a cero emisiones; cosa que se puede conseguir con la fibra de carbono, en especial con las partes grandes y pesadas del bogie. La fibra de carbono reciclada es el material que se ha escogido estudiar para la estructura del bogie, ya que, con él, se puede conseguir una viabilidad de coste-peso sin renunciar la fuerza estructural del bogie o flexibilidad, haciéndolo sostenible y un buen candidato como remplazo del acero estructural S235.

El bogie és un dels components essencials que constitueix un tren. Permet que el tren circuli en les vies, sosté el pes del cotxe, dels passatgers, resisteix les forces que apareixen quan: en moviment, accelerant i frenant, assegurant que el passatger estigui còmode durant el viatge. Al llarg dels anys, el bogie es modifica diverses vegades - des del transport de mercaderies, passant per els trens d'alta velocitat, els "trens lleugers", entre d’altres. Aquests dissenys estan fets perquè el tren s'especialitzi en una tasca en concret o millorar-lo de alguna manera com pot ser: ser més eficient, aconseguir produir menys emissions, o reduir el cost en total del tren. Tots aquests factors són importants quan es dissenya un bogie. L'enfocament central d'aquest TFE és l'estudi de les forces que apareixen en l'estructura mentre està en ús; a més a més de com es compara la fibra de carboni, amb l'acer estructural S235 com a material primari de l'estructura. En la indústria ferroviària hi ha una iniciativa de reduir les emissions de CO2 fins a un 55% en l'any 2030, i l'any 2050 l'objectiu és aconseguir arriba a zero emissions; cosa que es pot assolir amb la fibra de carboni, especialment amb les parts grans i pesades del bogie. La fibra de carboni és el material que s'ha escollit estudiar per a l'estructura del bogie, ja que, amb ell es pot aconseguir una viabilitat de cost-pes sense renunciar la força estructural del bogie o flexibilitat, fent-ho sostenible i un bon candidat com reemplaçament de l'acer estructural S235.

The bogie is one of the essential components of what constitutes a train. It allows the train to run on the train tracks, supports the weight of the car-body, passengers and withstands the forces that appear when; in motion, accelerating and decelerating, alongside ensuring the ride is as comfortable as possible for the passenger. Throughout the years, the bogie has undertaken many design changes – starting from freight transport, to highspeed passenger trains, to light rail city trains, and so on. These designs make it so that the bogie specializes in a certain task, such as making it more efficient, environmentally friendly, or cost-effective. All these factors are important when designing a bogie. The focus of this thesis is the study of the forces that appear in the frame of the bogie when in use, as well as how a fiber-reinforced composite material would compare to the standardized structural steel S235 version for the bogie frame. In the railway industry, there is currently an initiative to reduce the amount of railway transport CO2 emissions by 55% by the year 2030, following a zero-emission target in the year 2050, which may be achieved with the use of composite materials, especially in the bigger and heavier parts of the bogie. Recycled carbon fiber is the trusted composite material for the frame, and with it you can achieve higher cost-weight viability without forfeiting structural strength or flexibility, making it more sustainable and saving millions of euros in the process.

Country
Spain
Keywords

Von-Misses Stress, Deformation, Fibra de carboni, Von-Misses Stress., Ferrocarrils, Materials -- Propietats, :Enginyeria mecànica [Àrees temàtiques de la UPC], Trains, Structural Steel, Àrees temàtiques de la UPC::Enginyeria mecànica, Carbon fiber, Railroads, Composites

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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