EP2660119A1 - Structural element of a railway vehicle, such as a longitudinal wall or floor - Google Patents

Structural element of a railway vehicle, such as a longitudinal wall or floor Download PDF

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Publication number
EP2660119A1
EP2660119A1 EP13166512.7A EP13166512A EP2660119A1 EP 2660119 A1 EP2660119 A1 EP 2660119A1 EP 13166512 A EP13166512 A EP 13166512A EP 2660119 A1 EP2660119 A1 EP 2660119A1
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EP
European Patent Office
Prior art keywords
structural element
envelope
spar
casing
railway vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13166512.7A
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German (de)
French (fr)
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EP2660119B1 (en
Inventor
Gérard Gielczinski
Nicolas Henry
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Alstom Transport Technologies SAS
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Alstom Transport Technologies SAS
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Publication of EP2660119A1 publication Critical patent/EP2660119A1/en
Application granted granted Critical
Publication of EP2660119B1 publication Critical patent/EP2660119B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/005—Construction details of vehicle bodies with bodies characterised by use of plastics materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/08—Sides

Definitions

  • the present invention relates to a railway vehicle structural element, of the longitudinal wall type or railway vehicle floor, comprising at least one spar extending in a longitudinal direction and at least one cross member extending substantially perpendicular to the longitudinal direction, the spar and the cross-member being each formed of an envelope encasing a foam core.
  • Longitudinal walls or railway vehicle floors are generally designed from a plurality of metal members or sections joined together by welding, riveting or bolting to form the longitudinal wall or floor structure.
  • At least one leaf, intended to support the pavilion of the railway vehicle, and two door posts, intended to receive a door of the railway vehicle, are assembled together to form the structural element.
  • At least one stretcher and two end rails are assembled together to form a structural frame for reinforcing a panel forming the floor of the railway vehicle.
  • reinforcement elements can be added to the structural element, however such elements further increase the number of parts necessary to achieve the structural element, which is not satisfactory.
  • the various elements are generally made of metal, which weighs down the finished structural element.
  • the fasteners add additional mass to this structural member.
  • the appearance of the structural element is generally not satisfactory from an aesthetic point of view. Indeed, the elements are not arranged to have a satisfactory appearance and the fasteners are visible from outside the structural element. Packing elements must then be assembled on the faces of the structural element intended to be visible by the users of the vehicle This further complicates the assembly of the structural element and adds an additional mass to this element.
  • One of the aims of the invention is to overcome these disadvantages by providing a simple structural element to achieve, having a uniform rigidity and comprising a reduced number of parts.
  • the invention relates to a structural element of the aforementioned type, in which the casing of the spar and the casing of the sleeper are formed together in a single piece forming the envelope of the structural element, said casing of the structural element comprising at least one hollow profile made of composite material extending in the longitudinal direction to form the casing of the spar and in a direction perpendicular to the longitudinal direction to form the casing of the cross member.
  • the envelope of the structural element is made in one piece reduces the number of elements forming the structural element and to standardize the rigidity of the structural element in all its parts. The forces are distributed evenly over the entire structural element, which thus has a homogeneous behavior.
  • the longitudinal direction is defined in the direction in which the length of a mounted rail vehicle extends.
  • the terms “horizontal” and “vertical” are defined with respect to a railway vehicle mounted disposed on running rails.
  • the terms “lower” and “higher” are defined relative to the vertical direction.
  • a railway vehicle structural element 1 generally comprising at least one spar 2 extending in one direction. substantially longitudinal and at least one cross member 4 extending substantially perpendicular to the spar 2.
  • the spar 2 and the cross member 4 are each formed of an envelope defining their outer contour and a core 6 coated by and extending in at least a portion of the envelope.
  • the spar casing and the cross casing are made in one piece so as to form an envelope 8 of the structural element in one piece, defining the outer contour of the structural element 1, as shown in FIG. the Fig. 2 and 3 for example.
  • the envelope 8 of the integral structural member includes both portions extending in the longitudinal direction and portions extending perpendicular to the longitudinal direction.
  • the casing 8 of the structural element is formed of a hollow profile of composite material extending in the longitudinal direction to form the casing of the spar and in a direction perpendicular to the longitudinal direction to form the casing of the transom .
  • the envelope 8 has a closed section, that is to say that the section of the envelope has a polygonal shape, and comprises at least two opposite walls 10 between which is disposed the core 6.
  • the composite material forming the envelope 8 of the structural element consists of a matrix of thermosetting material mixed with continuous fibers.
  • the thermosetting material is, for example, epoxy, acrylic, polyester or vinylester.
  • the continuous fibers are, for example, glass, carbon or aramid fibers and form, for example, a multiaxial fabric.
  • Such a composite material makes it possible to distribute the reinforcements formed by the fibers in the main directions of stressing of the structural element.
  • the mechanical properties, such as the breaking stresses, of the composite material are substantially identical to those of the metallic materials while having a lower density.
  • the composite material makes it possible to produce a casing 8 having mechanical characteristics adapted to its use in a railway vehicle, while having a low mass.
  • Such a material can be worked in the liquid state to be molded before being solidified by thermosetting the matrix.
  • the envelope is for example made from two sections, forming half-shells, connected to each other over their entire length by two webs of composite material so as to form a closed section.
  • the connection between the profiles is particularly robust since it can be achieved by "infusion" of the resin, ensuring a fusion between the edges of the profiles and the composite material webs and a significant cohesion due to a homogeneous distribution of the resin in the structural element.
  • the junction line between the profiles is not visible because it is melted in the rest of the envelope.
  • the material of the envelope has a satisfactory appearance, which limits the finishing work on the envelope, when it is intended to be visible by the users of the railway vehicle. Thus, it is, for example, not necessary to coat the envelope with packing elements as is the case when metal materials are used. In addition, the absence of fastening means or weld lines between the spar 2 and the cross member 4 further improves the appearance of the envelope 8.
  • Ribs 12 are provided inside the casing 8, for example at locations where greater stiffness of the structural member is required to reinforce the casing. These ribs 12 extend from one wall 10 to the opposite wall 10. According to the embodiments shown on the Fig. 2, 4 , 5, 7 , 9 and 10 these ribs 12 are made in one piece with the envelope 8, that is to say that they are made of the same material as the envelope 8 during the production thereof. According to another embodiment, shown in Fig. 3 , 6 and 11 , the ribs 12 belong to a reinforcing element 14, made of composite material, disposed inside the envelope 8. Such a reinforcing element 14 is for example molded by the envelope 8 during the production of the envelope, which ensures a precise adjustment of the reinforcing element 14 and a good maintenance thereof in the envelope 8.
  • the envelope By producing the envelope in two half-shells, it is possible to make the ribs in one piece with at least one of the half-shells, the ribbed piece remaining demouldable easily in a single operation, without the need for a movable drawer in the molding cavity.
  • the method of producing the envelope and the structural element according to the invention is therefore particularly simple.
  • the core 6 is for example made of foam and it extends inside all or part of the casing 8, outside the reinforcing elements 14 when they are provided.
  • the foam of the core is for example made of a flame retardant material allowing the structural element 1 to meet the standards for fire safety.
  • the structural element 1 is more particularly intended to form a longitudinal wall 16 of a railway vehicle, as shown in FIGS. Fig. 1 to 7 , or a floor 18 of a railway vehicle, as shown on the Fig. 8 to 11 .
  • the structural element 1 is now described when it forms a longitudinal wall 16, or side wall, of a railway vehicle, with reference to the Fig. 1 to 7 .
  • the spar 2 forms the flap of the longitudinal wall 16.
  • the flap is intended to provide the upper longitudinal reinforcement of the longitudinal wall and to form the support of the pavilion of the railway vehicle.
  • the spar 2 comprises a large number of ribs extending inside the casing 8 to increase its rigidity, which allows it to withstand significant mechanical stresses.
  • the crosspiece 4 extends substantially vertically and forms a door passage amount of the longitudinal wall 16.
  • the longitudinal wall 16 comprises at least one pair of sleepers 4, spaced from one another according to the longitudinal direction and defining between them a doorway.
  • the longitudinal wall 16 comprises as many pairs of sleepers 4 whose envelopes are made in one piece with the envelope of the spar 2, as described above.
  • the crosspieces 4 arranged opposite each other and belonging to two different pairs are connected to one another by a panel 20 extending vertically and longitudinally from one cross member to the other so as to close part of the longitudinal wall 16. As shown in Fig.
  • the panels 20 extend in the lower part of the crosspieces and define an opening with the uprights and the spar 2 in the upper part of the uprights. This opening receives a glazing 22 forming a bay in the longitudinal wall 16. According to an embodiment not shown, some of the panels 20 may also extend over the entire height of the cross members 4 so as to completely close the space extending between these sleepers 4.
  • the upper edge of the panel 20 is adapted to receive an elastomeric seal or to be glued with the glazing 22.
  • the portion of the cross member 4 bordering the opening comprises a flange 24 adapted to receive the glazing 22 in support, as shown on the Fig. 4 .
  • each panel 20 comprises an envelope made in one piece with the envelopes of the cross members 4 and therefore with the envelope 8 of the structural element.
  • a foam core also extends inside the envelopes of the panels 20.
  • Reinforcements 26 may also be integrated into the panels 20 by adapting the shape of the envelope, as shown in FIG. Fig. 1 .
  • each crosspiece 4 comprises for example a reinforced portion 28 facing the doorway so as to strengthen the door corners, as shown in FIG. Fig. 1 .
  • the longitudinal wall 16 is also arranged to join the floor 18 of the railway vehicle, as more particularly shown on the Fig. 5 to 7 .
  • the longitudinal wall 16 comprises in its lower part, intended to be joined to the floor, a recess 30 intended to bear on the spar 2 of the floor ( Fig. 5 ) or intended to form a support for the floor spar 2 ( Fig. 6 and 7 ).
  • the recess 30 further closes the space forming the doorway between the cross members 4, as shown in FIG. Fig. 1 .
  • the recess 30 forms a support for the spar 2 of the floor 18, the recess 30 is reinforced by ribs 12, which can be made in one piece with the envelope 8 (FIG. Fig. 7 ) or belong to a reinforcing element 14 extending inside the casing 8 ( Fig. 6 ).
  • the structural element 1 is now described when it forms a floor 18 of a railway vehicle, as shown in FIGS. Fig. 8 to 11 .
  • the spar 2 forms a stretcher of the floor 18 and the cross member 4 forms an end cross member of said floor.
  • the floor 18 thus comprises two longitudinal members 2 and two crosspieces 4, extending substantially horizontally and joining each end of a spar 2 to the corresponding end of the other spar 2, as shown in FIG. Fig. 8 .
  • each spar 2 comprises a network of reinforcing ribs 12 extending inside the casing 8.
  • These ribs can be made in one piece with the casing 8 (FIG. Fig. 9 and 10 ) or belong to a reinforcing element 14 extending inside the casing 8 ( Fig. 11 ).
  • the floor 18 further comprises a panel 32, forming the circulation and seating area of the passengers of the railway vehicle, extending substantially horizontally between the longitudinal members 2 and the cross members 4.
  • the panel 32 is also made in one piece with the envelope 8 of the structural element. That is to say that the panel 32 comprises an envelope made in one piece with the envelopes of the longitudinal members and cross members 4 and thus with the envelope 8 of the structural element.
  • a soul of foam also extends inside the envelope of the panel 32, as shown in FIG. Fig. 9 .
  • the structural element described above comprises a reduced number of parts because the envelope 8 is formed in one piece and allows to integrate a large number of functionalities of the structural element 1. Therefore, the mass of the structural element is reduced, while having mechanical characteristics similar to a structural element made from metal elements assembled together.
  • the method of producing the structural element 1 is simple to implement and does not require a significant production time, because the structural element can be used practically as soon as it has been produced, without finishing steps or additional assembly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The element (1) has a beam (2) extending along longitudinal direction. A web (4) is extended perpendicularly to the longitudinal direction. The beam and the web are formed in a shell encasing a core (6) made of foam. The beam and a shell of the web are formed together as single piece for forming an envelope of the element. The envelope comprises a hollow profile made of a composite material extending in the longitudinal direction to form a case of the beam and in a direction perpendicular to the longitudinal direction to form the shell of the web.

Description

La présente invention concerne un élément structurel de véhicule ferroviaire, du type paroi longitudinale ou plancher de véhicule ferroviaire, comprenant au moins un longeron s'étendant selon une direction longitudinale et au moins une traverse s'étendant sensiblement perpendiculairement à la direction longitudinale, le longeron et la traverse étant formés chacun d'une enveloppe enrobant une âme en mousse.The present invention relates to a railway vehicle structural element, of the longitudinal wall type or railway vehicle floor, comprising at least one spar extending in a longitudinal direction and at least one cross member extending substantially perpendicular to the longitudinal direction, the spar and the cross-member being each formed of an envelope encasing a foam core.

Les parois longitudinales ou les planchers de véhicule ferroviaire sont généralement conçus à partir de plusieurs éléments ou profilés métalliques assemblés entre eux par soudage, rivetage ou boulonnage afin de former la structure de la paroi longitudinale ou du plancher.Longitudinal walls or railway vehicle floors are generally designed from a plurality of metal members or sections joined together by welding, riveting or bolting to form the longitudinal wall or floor structure.

Ainsi, pour une paroi longitudinale, au moins un battant, destiné à soutenir le pavillon du véhicule ferroviaire, et deux montants de porte, destinés à recevoir une porte du véhicule ferroviaire, sont assemblés entre eux pour former l'élément structurel.Thus, for a longitudinal wall, at least one leaf, intended to support the pavilion of the railway vehicle, and two door posts, intended to receive a door of the railway vehicle, are assembled together to form the structural element.

Pour un plancher, au moins un brancard et deux traverses d'extrémité sont assemblés entre eux pour former un cadre structurel destiné à renforcer un panneau formant le plancher du véhicule ferroviaire.For a floor, at least one stretcher and two end rails are assembled together to form a structural frame for reinforcing a panel forming the floor of the railway vehicle.

L'assemblage de ces différents éléments consomme un temps considérable et ne donne pas satisfaction en terme de rigidité de l'élément structurel fini. En effet, les zones dans lesquels les éléments sont fixés l'un à l'autre présentent une rigidité réduite du fait de la présence d'éléments de fixation traversant les éléments à fixer ou d'une ligne de soudure affaiblissant les éléments à fixer. Dans le cas de la soudure, les éléments à assembler subissent en outre des déformations locales, ce qui nécessite une opération de redressage de l'élément structurel fini avant qu'il puisse être assemblé sur le véhicule ferroviaire.The assembly of these different elements consumes considerable time and does not give satisfaction in terms of rigidity of the finished structural element. Indeed, the areas in which the elements are fixed to each other have a reduced rigidity due to the presence of fasteners through the elements to be fixed or a weld line weakening the elements to be fixed. In the case of welding, the elements to be joined are also subject to local deformations, which requires a straightening operation of the finished structural element before it can be assembled on the railway vehicle.

Pour pallier l'inconvénient du manque de rigidité, des éléments de renfort peuvent être ajoutés à l'élément structurel, cependant de tels éléments augmentent encore le nombre de pièces nécessaires pour réaliser l'élément structurel, ce qui n'est pas satisfaisant.To overcome the disadvantage of the lack of rigidity, reinforcement elements can be added to the structural element, however such elements further increase the number of parts necessary to achieve the structural element, which is not satisfactory.

En outre, les différents éléments sont généralement en métal, ce qui alourdit l'élément structurel fini. Les éléments de fixation ajoutent une masse supplémentaire à cet élément structurel. De plus, l'aspect de l'élément structurel n'est généralement pas satisfaisant d'un point de vue esthétique. En effet, les éléments ne sont pas agencés pour présenter un aspect satisfaisant et les éléments de fixation sont visibles depuis l'extérieur de l'élément structurel. Des éléments de garnissage doivent alors être assemblés sur les faces de l'élément structurel destinées à être visibles par les usagers du véhicule ferroviaire, ce qui complique encore l'assemblage de l'élément structurel et ajoute une masse supplémentaire à cet élément.In addition, the various elements are generally made of metal, which weighs down the finished structural element. The fasteners add additional mass to this structural member. In addition, the appearance of the structural element is generally not satisfactory from an aesthetic point of view. Indeed, the elements are not arranged to have a satisfactory appearance and the fasteners are visible from outside the structural element. Packing elements must then be assembled on the faces of the structural element intended to be visible by the users of the vehicle This further complicates the assembly of the structural element and adds an additional mass to this element.

L'un des buts de l'invention est de pallier ces inconvénients en proposant un élément structurel simple à réaliser, présentant une rigidité uniforme et comprenant un nombre de pièces réduit.One of the aims of the invention is to overcome these disadvantages by providing a simple structural element to achieve, having a uniform rigidity and comprising a reduced number of parts.

A cet effet, l'invention concerne un élément structurel du type susmentionné, dans lequel l'enveloppe du longeron et l'enveloppe de la traverse sont formées ensemble d'une seule pièce formant l'enveloppe de l'élément structurel, ladite enveloppe de l'élément structurel comprenant au moins un profilé creux réalisé en matériau composite s'étendant selon la direction longitudinale pour former l'enveloppe du longeron et selon une direction perpendiculaire à la direction longitudinale pour former l'enveloppe de la traverse.For this purpose, the invention relates to a structural element of the aforementioned type, in which the casing of the spar and the casing of the sleeper are formed together in a single piece forming the envelope of the structural element, said casing of the structural element comprising at least one hollow profile made of composite material extending in the longitudinal direction to form the casing of the spar and in a direction perpendicular to the longitudinal direction to form the casing of the cross member.

Le fait que l'enveloppe de l'élément structurel soit réalisée d'une seule pièce permet de réduire le nombre d'éléments formant l'élément structurel et d'uniformiser la rigidité de l'élément structurel dans toutes ses parties. Les efforts sont ainsi répartis de façon uniforme sur tout l'élément structurel, qui présente ainsi un comportement homogène.The fact that the envelope of the structural element is made in one piece reduces the number of elements forming the structural element and to standardize the rigidity of the structural element in all its parts. The forces are distributed evenly over the entire structural element, which thus has a homogeneous behavior.

Selon d'autres caractéristiques de l'élément structurel selon l'invention :

  • le matériau composite est formé d'une matrice en matériau thermodurcissable mélangées à des fibres continues.
  • l'enveloppe de l'élément structurel présente une section fermée comprenant au moins deux parois opposées entre lesquelles s'étend l'âme en mousse.
  • des nervures s'étendent d'une paroi à l'autre, lesdites nervures étant formées d'une seule pièce avec l'enveloppe de l'élément structurel.
  • l'élément comprend au moins un élément de renfort réalisé en matériau composite et s'étendant à l'intérieur d'une partie de l'enveloppe de l'élément structurel.
  • l'élément comprend au moins deux traverses s'étendant sensiblement perpendiculairement au longeron et espacées l'une de l'autre, l'élément structurel comprenant en outre au moins un panneau s'étendant d'une traverse à l'autre, ledit panneau étant formé d'une enveloppe enrobant une âme en mousse, l'enveloppe dudit panneau étant réalisée d'une seule pièce avec l'enveloppe de l'élément structurel.
  • l'enveloppe de l'élément structurel est réalisée à partir de deux profilés reliés l'un à l'autre sur toute leur longueur par deux voiles en matériau composite de sorte à former une section fermée.
  • le longeron forme le battant d'une paroi longitudinale de véhicule ferroviaire, la traverse formant un montant de passage de porte de ladite paroi longitudinale.
  • le longeron forme un brancard d'un plancher de véhicule ferroviaire, la traverse formant une traverse d'extrémité dudit plancher.
  • l'âme en mousse est réalisée en un matériau ignifuge.
According to other characteristics of the structural element according to the invention:
  • the composite material is formed of a matrix of thermosetting material mixed with continuous fibers.
  • the envelope of the structural element has a closed section comprising at least two opposite walls between which the foam core extends.
  • ribs extend from one wall to another, said ribs being integrally formed with the shell of the structural member.
  • the element comprises at least one reinforcing element made of composite material and extending inside a part of the envelope of the structural element.
  • the member comprises at least two cross members extending substantially perpendicularly to the spar and spaced apart from one another, the structural member further comprising at least one panel extending from one cross member to the other, said panel being formed of a shell encasing a foam core, the envelope of said panel being made in one piece with the envelope of the structural member.
  • the envelope of the structural element is made from two sections connected to each other over their entire length by two webs of composite material so as to form a closed section.
  • the beam forms the flap of a longitudinal wall of a railway vehicle, the cross member forming a door passage amount of said longitudinal wall.
  • the spar forms a stretcher of a railway vehicle floor, the cross member forming an end cross member of said floor.
  • the foam core is made of a flame retardant material.

D'autres aspects et avantages de l'invention apparaîtront à la lecture de la description qui suit, donnée à titre d'exemple et faite en référence aux dessins annexés, dans lesquels :

  • la Fig. 1 est une représentation schématique en perspective d'un élément structurel selon l'invention, cet élément formant une paroi longitudinale d'un véhicule ferroviaire,
  • la Fig. 2 est une représentation schématique en coupe d'une partie de l'élément structurel selon l'axe II-II de la Fig. 1, selon un premier mode de réalisation,
  • la Fig. 3 est une représentation schématique en coupe de la partie de l'élément structurel selon l'axe II-II de la Fig. 1, selon un deuxième mode de réalisation,
  • la Fig. 4 est une représentation schématique en coupe de l'élément structurel selon l'axe IV-IV de la Fig. 1,
  • la Fig. 5 est une représentation schématique en coupe d'une partie de l'élément structurel de la Fig. 1 selon V-V, selon un premier de réalisation,
  • la Fig. 6 est une représentation schématique en coupe de la partie de l'élément structurel selon l'axe V-V de la Fig. 1, selon un deuxième mode de réalisation,
  • la Fig. 7 est une représentation schématique en coupe de la partie de l'élément structurel selon l'axe V-V de la Fig. 1, selon un troisième mode de réalisation,
  • la Fig. 8 est une représentation schématique en perspective d'un élément structurel selon l'invention, cet élément formant un plancher de véhicule ferroviaire,
  • la Fig. 9 est une représentation schématique en coupe de l'élément structurel selon l'axe IX-IX de la Fig. 8,
  • la Fig. 10 est une représentation schématique agrandie de la zone X de la Fig. 9, selon un premier mode de réalisation, et
  • la Fig. 11 est une représentation schématique agrandie de la zone X de la Fig. 9, selon un deuxième mode de réalisation.
Other aspects and advantages of the invention will appear on reading the description which follows, given by way of example and with reference to the appended drawings, in which:
  • the Fig. 1 is a schematic representation in perspective of a structural element according to the invention, this element forming a longitudinal wall of a railway vehicle,
  • the Fig. 2 is a schematic representation in section of a part of the structural element along axis II-II of the Fig. 1 according to a first embodiment,
  • the Fig. 3 is a schematic representation in section of the part of the structural element along axis II-II of the Fig. 1 according to a second embodiment,
  • the Fig. 4 is a schematic representation in section of the structural element along the axis IV-IV of the Fig. 1 ,
  • the Fig. 5 is a schematic representation in section of a part of the structural element of the Fig. 1 according to VV, according to a first embodiment,
  • the Fig. 6 is a schematic representation in section of the part of the structural element along the axis VV of the Fig. 1 according to a second embodiment,
  • the Fig. 7 is a schematic representation in section of the part of the structural element along the axis VV of the Fig. 1 according to a third embodiment,
  • the Fig. 8 is a schematic representation in perspective of a structural element according to the invention, this element forming a railway vehicle floor,
  • the Fig. 9 is a schematic representation in section of the structural element along axis IX-IX of the Fig. 8 ,
  • the Fig. 10 is an enlarged schematic representation of area X of the Fig. 9 according to a first embodiment, and
  • the Fig. 11 is an enlarged schematic representation of area X of the Fig. 9 according to a second embodiment.

Dans la description, la direction longitudinale est définie selon la direction dans laquelle s'étend la longueur d'un véhicule ferroviaire monté. Les termes « horizontal » et « vertical » sont définis par rapport à un véhicule ferroviaire monté disposé sur des rails de roulement. Les termes « inférieur » et « supérieur » sont définis par rapport à la direction verticale.In the description, the longitudinal direction is defined in the direction in which the length of a mounted rail vehicle extends. The terms "horizontal" and "vertical" are defined with respect to a railway vehicle mounted disposed on running rails. The terms "lower" and "higher" are defined relative to the vertical direction.

En référence aux figures, on décrit un élément structurel de véhicule ferroviaire 1 comprenant, de manière générale, au moins un longeron 2 s'étendant selon une direction sensiblement longitudinale et au moins une traverse 4 s'étendant sensiblement perpendiculairement au longeron 2.With reference to the figures, there is described a railway vehicle structural element 1 generally comprising at least one spar 2 extending in one direction. substantially longitudinal and at least one cross member 4 extending substantially perpendicular to the spar 2.

Le longeron 2 et la traverse 4 sont formés chacune d'une enveloppe définissant leur contour extérieur et d'une âme 6 enrobée par et s'étendant dans au moins une partie de l'enveloppe. L'enveloppe de longeron et l'enveloppe de traverse sont réalisées d'une seule pièce de sorte à former une enveloppe 8 de l'élément structurel d'un seul tenant, définissant le contour externe de l'élément structurel 1, comme représenté sur les Fig. 2 et 3 par exemple. Par réalisées d'une seule pièce, on entend donc que l'enveloppe de longeron et l'enveloppe de traverse ne sont pas réalisées séparément puis assemblées ensembles par des moyens de fixation, comme cela se fait classiquement. Ainsi, l'enveloppe 8 de l'élément structurel d'un seul tenant comprend à la fois des parties s'étendant selon la direction longitudinale et des parties s'étendant perpendiculairement à la direction longitudinale.The spar 2 and the cross member 4 are each formed of an envelope defining their outer contour and a core 6 coated by and extending in at least a portion of the envelope. The spar casing and the cross casing are made in one piece so as to form an envelope 8 of the structural element in one piece, defining the outer contour of the structural element 1, as shown in FIG. the Fig. 2 and 3 for example. By carried out in one piece, it is therefore meant that the spar and the sleeper envelope are not made separately and then assembled together by fastening means, as is done conventionally. Thus, the envelope 8 of the integral structural member includes both portions extending in the longitudinal direction and portions extending perpendicular to the longitudinal direction.

L'enveloppe 8 de l'élément structurel est formée d'un profilé creux en matériau composite s'étendant selon la direction longitudinale pour former l'enveloppe du longeron et selon une direction perpendiculaire à la direction longitudinale pour former l'enveloppe de la traverse. L'enveloppe 8 présente une section fermée, c'est-à-dire que la section de l'enveloppe présente une forme polygonale, et comprend aux moins deux parois opposées 10 entre lesquelles est disposée l'âme 6.The casing 8 of the structural element is formed of a hollow profile of composite material extending in the longitudinal direction to form the casing of the spar and in a direction perpendicular to the longitudinal direction to form the casing of the transom . The envelope 8 has a closed section, that is to say that the section of the envelope has a polygonal shape, and comprises at least two opposite walls 10 between which is disposed the core 6.

Le matériau composite formant l'enveloppe 8 de l'élément structurel est constitué d'une matrice en matériau thermodurcissable mélangée à des fibres continues. Le matériau thermodurcissable est par exemple de l'époxy, de l'acrylique, du polyester ou du vinylester. Les fibres continues sont par exemple des fibres de verre, de carbone ou d'aramide et forment par exemple un tissu multiaxial. Un tel matériau composite permet de distribuer les renforts, formés par les fibres, dans les directions principales de sollicitations de l'élément structurel. En outre, les propriétés mécaniques, telles que les contraintes à la rupture, du matériau composite sont sensiblement identiques à celles des matériaux métalliques tout en ayant une densité plus faible. Ainsi, le matériau composite permet de réaliser une enveloppe 8 présentant des caractéristiques mécaniques adaptées à son utilisation dans un véhicule ferroviaire, tout en ayant une masse faible.The composite material forming the envelope 8 of the structural element consists of a matrix of thermosetting material mixed with continuous fibers. The thermosetting material is, for example, epoxy, acrylic, polyester or vinylester. The continuous fibers are, for example, glass, carbon or aramid fibers and form, for example, a multiaxial fabric. Such a composite material makes it possible to distribute the reinforcements formed by the fibers in the main directions of stressing of the structural element. In addition, the mechanical properties, such as the breaking stresses, of the composite material are substantially identical to those of the metallic materials while having a lower density. Thus, the composite material makes it possible to produce a casing 8 having mechanical characteristics adapted to its use in a railway vehicle, while having a low mass.

En outre, un tel matériau peut être travaillé à l'état liquide en vue d'être moulé avant d'être solidifié par thermodurcissage de la matrice. Ceci permet de réaliser l'enveloppe 8 de façon simple tout en offrant une grande flexibilité quant à la forme et à la complexité de l'architecture de l'enveloppe 8. L'enveloppe est par exemple réalisée à partir de deux profilés, formant des demi-coquilles, reliés l'un à l'autre sur toute leur longueur par deux voiles en matériau composite de sorte à former une section fermée. La liaison entre les profilés est particulièrement robuste puisqu'elle peut être réalisée par « infusion » de la résine, assurant une fusion entre les bords des profilés et les voiles en matériau composite et une cohésion importante du fait d'une répartition homogène de la résine dans l'élément structurel. Ainsi, lorsque l'enveloppe 8 est réalisée, la ligne de jonction entre les profilés n'est pas visible car elle est fondue dans le reste de l'enveloppe.In addition, such a material can be worked in the liquid state to be molded before being solidified by thermosetting the matrix. This makes it possible to produce the envelope 8 in a simple manner while offering great flexibility as to the shape and complexity of the architecture of the envelope 8. The envelope is for example made from two sections, forming half-shells, connected to each other over their entire length by two webs of composite material so as to form a closed section. The connection between the profiles is particularly robust since it can be achieved by "infusion" of the resin, ensuring a fusion between the edges of the profiles and the composite material webs and a significant cohesion due to a homogeneous distribution of the resin in the structural element. Thus, when the envelope 8 is made, the junction line between the profiles is not visible because it is melted in the rest of the envelope.

Le fait de réaliser l'enveloppe à partir de deux demi-coquilles avant de les assembler pour former la section fermée simplifie grandement la réalisation de l'élément structurel, notamment la réalisation d'éléments s'étendant à l'intérieur de l'enveloppe entre les deux demi-coquilles.The fact of making the envelope from two half-shells before assembling them to form the closed section greatly simplifies the realization of the structural element, in particular the production of elements extending inside the envelope. between the two half-shells.

Le matériau de l'enveloppe présente un aspect satisfaisant, ce qui permet de limiter les travaux de finition sur l'enveloppe, lorsque celle-ci est destinée à être visible par les utilisateurs du véhicule ferroviaire. Ainsi, il n'est par exemple pas nécessaire de revêtir l'enveloppe par des éléments de garnissage comme c'est le cas lorsque des matériaux métalliques sont utilisés. En outre, l'absence de moyens de fixation ou de lignes de soudure entre le longeron 2 et la traverse 4 améliore encore l'aspect de l'enveloppe 8.The material of the envelope has a satisfactory appearance, which limits the finishing work on the envelope, when it is intended to be visible by the users of the railway vehicle. Thus, it is, for example, not necessary to coat the envelope with packing elements as is the case when metal materials are used. In addition, the absence of fastening means or weld lines between the spar 2 and the cross member 4 further improves the appearance of the envelope 8.

Des nervures 12 sont prévues à l'intérieur de l'enveloppe 8, par exemple à des emplacements où une plus grande rigidité de l'élément structurel est nécessaire, afin de renforcer l'enveloppe. Ces nervures 12 s'étendent d'une paroi 10 à la paroi 10 opposée. Selon les modes de réalisation représentés sur les Fig. 2, 4, 5, 7, 9 et 10, ces nervures 12 sont réalisées d'une seule pièce avec l'enveloppe 8, c'est-à-dire qu'elles sont réalisées dans le même matériau que l'enveloppe 8 au cours de la réalisation de celle-ci. Selon un autre mode de réalisation, représenté sur les Fig. 3, 6 et 11, les nervures 12 appartiennent à un élément de renfort 14 rapporté, réalisé en matériau composite, disposé à l'intérieur de l'enveloppe 8. Un tel élément de renfort 14 est par exemple surmoulé par l'enveloppe 8 au cours de la réalisation de l'enveloppe, ce qui assure un ajustage précis de l'élément de renfort 14 et un bon maintien de celui-ci dans l'enveloppe 8.Ribs 12 are provided inside the casing 8, for example at locations where greater stiffness of the structural member is required to reinforce the casing. These ribs 12 extend from one wall 10 to the opposite wall 10. According to the embodiments shown on the Fig. 2, 4 , 5, 7 , 9 and 10 these ribs 12 are made in one piece with the envelope 8, that is to say that they are made of the same material as the envelope 8 during the production thereof. According to another embodiment, shown in Fig. 3 , 6 and 11 , the ribs 12 belong to a reinforcing element 14, made of composite material, disposed inside the envelope 8. Such a reinforcing element 14 is for example molded by the envelope 8 during the production of the envelope, which ensures a precise adjustment of the reinforcing element 14 and a good maintenance thereof in the envelope 8.

En réalisant l'enveloppe en deux demi-coquilles, il est possible de réaliser les nervures d'une seule pièce avec au moins l'une des demi-coquilles, la pièce nervurée restant démoulable facilement en une seule opération, sans nécessiter de tiroir mobile dans la cavité de moulage.By producing the envelope in two half-shells, it is possible to make the ribs in one piece with at least one of the half-shells, the ribbed piece remaining demouldable easily in a single operation, without the need for a movable drawer in the molding cavity.

Le procédé de réalisation de l'enveloppe et de l'élément structurel selon l'invention est donc particulièrement simple.The method of producing the envelope and the structural element according to the invention is therefore particularly simple.

L'âme 6 est par exemple réalisée en mousse et elle s'étend à l'intérieur de tout ou partie de l'enveloppe 8, en dehors des éléments de renfort 14 lorsque ceux-ci sont prévus. La mousse de l'âme est par exemple réalisée en un matériau ignifuge permettant à l'élément structurel 1 de respecter les normes en matière de sécurité incendie.The core 6 is for example made of foam and it extends inside all or part of the casing 8, outside the reinforcing elements 14 when they are provided. The foam of the core is for example made of a flame retardant material allowing the structural element 1 to meet the standards for fire safety.

L'élément structurel 1 est plus particulièrement destiné à former une paroi longitudinale 16 de véhicule ferroviaire, comme représenté sur les Fig. 1 à 7, ou un plancher 18 de véhicule ferroviaire, comme représenté sur les Fig. 8 à 11.The structural element 1 is more particularly intended to form a longitudinal wall 16 of a railway vehicle, as shown in FIGS. Fig. 1 to 7 , or a floor 18 of a railway vehicle, as shown on the Fig. 8 to 11 .

On décrit à présent l'élément structurel 1 lorsqu'il forme une paroi longitudinale 16, ou paroi latérale, de véhicule ferroviaire, en référence aux Fig. 1 à 7.The structural element 1 is now described when it forms a longitudinal wall 16, or side wall, of a railway vehicle, with reference to the Fig. 1 to 7 .

Dans ce mode de réalisation, le longeron 2 forme le battant de la paroi longitudinale 16. Le battant est destiné à assurer le renfort longitudinal supérieur de la paroi longitudinale et à former le support du pavillon du véhicule ferroviaire. A cet effet et comme on peut le voir plus particulièrement sur les Fig. 2 et 3, le longeron 2 comprend un grand nombre de nervures s'étendant à l'intérieur de l'enveloppe 8 afin d'augmenter sa rigidité, ce qui lui permet de supporter des contraintes mécaniques importantes.In this embodiment, the spar 2 forms the flap of the longitudinal wall 16. The flap is intended to provide the upper longitudinal reinforcement of the longitudinal wall and to form the support of the pavilion of the railway vehicle. For this purpose and as can be seen more particularly on Fig. 2 and 3 , the spar 2 comprises a large number of ribs extending inside the casing 8 to increase its rigidity, which allows it to withstand significant mechanical stresses.

La traverse 4 s'étend sensiblement verticalement et forme quant à elle un montant de passage de porte de la paroi longitudinale 16. A cet effet, la paroi longitudinale 16 comprend au moins une paire traverses 4, espacées l'une de l'autre selon la direction longitudinale et définissant entre elles un passage de porte. Quand la paroi longitudinale 16 comprend plusieurs passages de porte, la paroi longitudinale 16 comprend autant de paires de traverses 4 dont les enveloppes sont réalisées d'une seule pièce avec l'enveloppe du longeron 2, comme décrit précédemment. Les traverses 4 disposées l'une en regard de l'autre et appartenant à deux paires différentes sont reliées l'une à l'autre par un panneau 20 s'étendant verticalement et longitudinalement d'une traverse à l'autre de sorte à fermer une partie de la paroi longitudinale 16. Comme représenté sur la Fig. 1, au moins une partie des panneaux 20 s'étend dans la partie inférieure des traverses et définissent une ouverture avec les montants et le longeron 2 dans la partie supérieure des montants. Cette ouverture reçoit un vitrage 22 formant une baie dans la paroi longitudinale 16. Selon un mode de réalisation non représenté, certains des panneaux 20 peuvent également s'étendre sur toute la hauteur des traverses 4 de sorte à fermer complètement l'espace s'étendant entre ces traverses 4.The crosspiece 4 extends substantially vertically and forms a door passage amount of the longitudinal wall 16. For this purpose, the longitudinal wall 16 comprises at least one pair of sleepers 4, spaced from one another according to the longitudinal direction and defining between them a doorway. When the longitudinal wall 16 comprises several door passages, the longitudinal wall 16 comprises as many pairs of sleepers 4 whose envelopes are made in one piece with the envelope of the spar 2, as described above. The crosspieces 4 arranged opposite each other and belonging to two different pairs are connected to one another by a panel 20 extending vertically and longitudinally from one cross member to the other so as to close part of the longitudinal wall 16. As shown in Fig. 1 at least a portion of the panels 20 extend in the lower part of the crosspieces and define an opening with the uprights and the spar 2 in the upper part of the uprights. This opening receives a glazing 22 forming a bay in the longitudinal wall 16. According to an embodiment not shown, some of the panels 20 may also extend over the entire height of the cross members 4 so as to completely close the space extending between these sleepers 4.

Lorsqu'un panneau 20 forme un support de vitrage, le bord supérieur du panneau 20 est adapté pour recevoir un joint élastomère ou pour être collé avec le vitrage 22. De même, la partie de la traverse 4 bordant l'ouverture comprend un rebord 24 adapté pour recevoir le vitrage 22 en appui, comme représenté sur la Fig. 4.When a panel 20 forms a glazing support, the upper edge of the panel 20 is adapted to receive an elastomeric seal or to be glued with the glazing 22. Similarly, the portion of the cross member 4 bordering the opening comprises a flange 24 adapted to receive the glazing 22 in support, as shown on the Fig. 4 .

Les panneaux 20 sont également réalisés d'un seul tenant avec l'enveloppe 8 de l'élément structurel. C'est-à-dire que chaque panneau 20 comprend une enveloppe réalisée d'une seule pièce avec les enveloppes des traverses 4 et donc avec l'enveloppe 8 de l'élément structurel. Une âme en mousse s'étend également à l'intérieur des enveloppes des panneaux 20. Des renforts 26 peuvent également être intégrés dans les panneaux 20 en adaptant la forme de l'enveloppe, comme représenté sur la Fig. 1.The panels 20 are also made in one piece with the envelope 8 of the structural element. That is to say that each panel 20 comprises an envelope made in one piece with the envelopes of the cross members 4 and therefore with the envelope 8 of the structural element. A foam core also extends inside the envelopes of the panels 20. Reinforcements 26 may also be integrated into the panels 20 by adapting the shape of the envelope, as shown in FIG. Fig. 1 .

De façon générale, comme la forme de l'enveloppe 8 peut être définie avec une grande flexibilité, des renforts peuvent être prévus d'une seule pièce avec celle-ci aux endroits où les contraintes mécaniques sont les plus grandes. Ainsi, l'extrémité inférieure de chaque traverse 4 comprend par exemple une partie renforcée 28 tournée vers le passage de porte de sorte à renforcer les coins de porte, comme représenté sur la Fig. 1.In general, since the shape of the envelope 8 can be defined with great flexibility, reinforcements can be provided in one piece with the latter in places where the mechanical stresses are greatest. Thus, the lower end of each crosspiece 4 comprises for example a reinforced portion 28 facing the doorway so as to strengthen the door corners, as shown in FIG. Fig. 1 .

La paroi longitudinale 16 est également agencée pour assurer la jonction avec le plancher 18 du véhicule ferroviaire, comme plus particulièrement représenté sur les Fig. 5 à 7. A cet effet, la paroi longitudinale 16 comprend dans sa partie inférieure, destinée à être jointe au plancher, un décrochement 30 destiné à venir en appui sur le longeron 2 du plancher (Fig. 5) ou destiné à former un support du longeron 2 du plancher (Fig. 6 et 7). Le décrochement 30 ferme en outre l'espace formant le passage de porte entre les traverses 4, comme représenté sur la Fig. 1.The longitudinal wall 16 is also arranged to join the floor 18 of the railway vehicle, as more particularly shown on the Fig. 5 to 7 . For this purpose, the longitudinal wall 16 comprises in its lower part, intended to be joined to the floor, a recess 30 intended to bear on the spar 2 of the floor ( Fig. 5 ) or intended to form a support for the floor spar 2 ( Fig. 6 and 7 ). The recess 30 further closes the space forming the doorway between the cross members 4, as shown in FIG. Fig. 1 .

Dans le cas où le décrochement 30 forme un support pour le longeron 2 du plancher 18, le décrochement 30 est renforcé par des nervures 12, qui peuvent être réalisées d'une seule pièce avec l'enveloppe 8 (Fig. 7) ou appartenir à un élément de renfort 14 s'étendant à l'intérieur de l'enveloppe 8 (Fig. 6).In the case where the recess 30 forms a support for the spar 2 of the floor 18, the recess 30 is reinforced by ribs 12, which can be made in one piece with the envelope 8 (FIG. Fig. 7 ) or belong to a reinforcing element 14 extending inside the casing 8 ( Fig. 6 ).

On décrit à présent l'élément structurel 1 lorsqu'il forme un plancher 18 de véhicule ferroviaire, comme représenté sur les Fig. 8 à 11.The structural element 1 is now described when it forms a floor 18 of a railway vehicle, as shown in FIGS. Fig. 8 to 11 .

Dans ce mode de réalisation, le longeron 2 forme un brancard du plancher 18 et la traverse 4 forme une traverse d'extrémité dudit plancher. Classiquement, le plancher 18 comprend donc deux longerons 2 et deux traverses 4, s'étendant sensiblement horizontalement et joignant chaque extrémité d'un longeron 2 à l'extrémité correspondante de l'autre longeron 2, comme représenté sur la Fig. 8.In this embodiment, the spar 2 forms a stretcher of the floor 18 and the cross member 4 forms an end cross member of said floor. Conventionally, the floor 18 thus comprises two longitudinal members 2 and two crosspieces 4, extending substantially horizontally and joining each end of a spar 2 to the corresponding end of the other spar 2, as shown in FIG. Fig. 8 .

Comme représenté sur les Fig. 9 à 11, chaque longeron 2 comprend un réseau de nervures 12 de renfort s'étendant à l'intérieur de l'enveloppe 8. Ces nervures peuvent être réalisées d'une seule pièce avec l'enveloppe 8 (Fig. 9 et 10) ou appartenir à un élément de renfort 14 s'étendant à l'intérieur de l'enveloppe 8 (Fig. 11).As shown on Fig. 9 to 11 each spar 2 comprises a network of reinforcing ribs 12 extending inside the casing 8. These ribs can be made in one piece with the casing 8 (FIG. Fig. 9 and 10 ) or belong to a reinforcing element 14 extending inside the casing 8 ( Fig. 11 ).

Le plancher 18 comprend en outre un panneau 32, formant la zone de circulation et d'assise des passagers du véhicule ferroviaire, s'étendant sensiblement horizontalement entre les longerons 2 et les traverses 4. Le panneau 32 est également réalisé d'un seul tenant avec l'enveloppe 8 de l'élément structurel. C'est-à-dire que le panneau 32 comprend une enveloppe réalisée d'une seule pièce avec les enveloppes des longerons et des traverses 4 et donc avec l'enveloppe 8 de l'élément structurel. Une âme en mousse s'étend également à l'intérieur de l'enveloppe du panneau 32, comme représenté sur la Fig. 9.The floor 18 further comprises a panel 32, forming the circulation and seating area of the passengers of the railway vehicle, extending substantially horizontally between the longitudinal members 2 and the cross members 4. The panel 32 is also made in one piece with the envelope 8 of the structural element. That is to say that the panel 32 comprises an envelope made in one piece with the envelopes of the longitudinal members and cross members 4 and thus with the envelope 8 of the structural element. A soul of foam also extends inside the envelope of the panel 32, as shown in FIG. Fig. 9 .

L'élément structurel décrit ci-dessus comprend un nombre de pièces réduit car l'enveloppe 8 est formée d'un seul tenant et permet d'intégrer un grand nombre de fonctionnalités de l'élément structurel 1. Par conséquent, la masse de l'élément structurel est réduite, tout en présentant des caractéristiques mécaniques similaires à un élément structurel réalisé à partir d'éléments métalliques assemblés entre eux.The structural element described above comprises a reduced number of parts because the envelope 8 is formed in one piece and allows to integrate a large number of functionalities of the structural element 1. Therefore, the mass of the structural element is reduced, while having mechanical characteristics similar to a structural element made from metal elements assembled together.

Le procédé de réalisation de l'élément structurel 1 est simple à mettre en oeuvre et ne nécessite pas un temps de réalisation important, du fait que l'élément structurel peut être utilisé pratiquement dès qu'il a été réalisé, sans étapes de finition ou d'assemblage supplémentaires.The method of producing the structural element 1 is simple to implement and does not require a significant production time, because the structural element can be used practically as soon as it has been produced, without finishing steps or additional assembly.

Claims (9)

Elément structurel (1) de véhicule ferroviaire, du type paroi longitudinale (16) ou plancher (18) de véhicule ferroviaire, comprenant au moins un longeron (2) s'étendant selon une direction longitudinale et au moins une traverse (4) s'étendant sensiblement perpendiculairement à la direction longitudinale, le longeron (2) et la traverse (4) étant formés chacun d'une enveloppe enrobant une âme (6) en mousse, l'enveloppe du longeron (2) et l'enveloppe de la traverse (4) étant formées ensemble d'une seule pièce formant l'enveloppe (8) de l'élément structurel, caractérisé en ce que ladite enveloppe (8) de l'élément structurel comprend au moins deux profilés creux réalisés en matériau composite s'étendant chacun selon la direction longitudinale pour former l'enveloppe du longeron (2) et selon une direction perpendiculaire à la direction longitudinale pour former l'enveloppe de la traverse (4), les profilés étant reliés l'un à l'autre sur toute leur longueur par deux voiles en matériau composite de sorte à former une section fermée.Rail vehicle structural element (1) of the longitudinal wall type (16) or floor (18) of a railway vehicle, comprising at least one longitudinal member (2) extending in a longitudinal direction and at least one cross member (4) s' extending substantially perpendicular to the longitudinal direction, the spar (2) and the cross member (4) being each formed of a shell encasing a foam core (6), the spar casing (2) and the sleeper casing (4) being formed together in a single piece forming the envelope (8) of the structural element, characterized in that said envelope (8) of the structural element comprises at least two hollow profiles made of composite material s' extending each in the longitudinal direction to form the casing of the spar (2) and in a direction perpendicular to the longitudinal direction to form the casing of the cross member (4), the profiles being connected to each other over any their length by sails made of composite material so as to form a closed section. Elément structurel selon la revendication 1, caractérisé en ce que le matériau composite est formé d'une matrice en matériau thermodurcissable mélangées à des fibres continues.Structural element according to claim 1, characterized in that the composite material is formed of a matrix of thermosetting material mixed with continuous fibers. Elément structurel selon la revendication 1 ou 2, caractérisé en ce que l'enveloppe (8) de l'élément structurel présente une section fermée comprenant au moins deux parois opposées (10) entre lesquelles s'étend l'âme (6) en mousse.Structural element according to Claim 1 or 2, characterized in that the envelope (8) of the structural element has a closed section comprising at least two opposite walls (10) between which the foam core (6) extends. . Elément structurel selon la revendication 3, caractérisé en ce que des nervures (12) s'étendent d'une paroi (10) à l'autre, lesdites nervures (12) étant formées d'une seule pièce avec l'enveloppe (8) de l'élément structurel.Structural element according to claim 3, characterized in that ribs (12) extend from one wall (10) to the other, said ribs (12) being integrally formed with the casing (8) of the structural element. Elément structurel selon la revendication 3 ou 4, caractérisé en ce qu'il comprend au moins un élément de renfort (14) réalisé en matériau composite et s'étendant à l'intérieur d'une partie de l'enveloppe (8) de l'élément structurel.Structural element according to claim 3 or 4, characterized in that it comprises at least one reinforcement element (14) made of composite material and extending inside a part of the envelope (8) of the structural element. Elément structurel selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend au moins deux traverses (4) s'étendant sensiblement perpendiculairement au longeron (2) et espacées l'une de l'autre, l'élément structurel comprenant en outre au moins un panneau (20, 32) s'étendant d'une traverse (4) à l'autre, ledit panneau (20, 32) étant formé d'une enveloppe enrobant une âme (6) en mousse, l'enveloppe dudit panneau (20, 32) étant réalisée d'une seule pièce avec l'enveloppe (8) de l'élément structurel.Structural element according to any one of claims 1 to 5, characterized in that it comprises at least two crosspieces (4) extending substantially perpendicular to the spar (2) and spaced apart from each other, the element structural member further comprising at least one panel (20, 32) extending from one cross member (4) to the other, said panel (20, 32) being formed of a shell encasing a foam core (6), the envelope of said panel (20, 32) being made in one piece with the envelope (8) of the structural element. Elément structurel selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le longeron (2) forme le battant d'une paroi longitudinale (16) de véhicule ferroviaire, la traverse (4) formant un montant de passage de porte de ladite paroi longitudinale (16).Structural element according to any one of claims 1 to 6, characterized in that the spar (2) forms the flap of a longitudinal wall (16) of a railway vehicle, the cross member (4) forming a door passage amount of said longitudinal wall (16). Elément de structure selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le longeron (2) forme un brancard d'un plancher (18) de véhicule ferroviaire, la traverse (4) formant une traverse d'extrémité dudit plancher (18).Structural element according to any one of claims 1 to 6, characterized in that the spar (2) forms a stretcher of a floor (18) of a railway vehicle, the crossbar (4) forming an end cross of said floor (18). Elément de structure selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'âme (6) en mousse est réalisée en un matériau ignifuge.Structure element according to any one of claims 1 to 8, characterized in that the core (6) of foam is made of a flame retardant material.
EP13166512.7A 2012-05-03 2013-05-03 Method for producing a structural element of a railway vehicle Active EP2660119B1 (en)

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FR1254051A FR2990177B1 (en) 2012-05-03 2012-05-03 STRUCTURAL ELEMENT OF RAILWAY VEHICLE, OF LONGITUDINAL WALL OR FLOOR TYPE

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Cited By (16)

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WO2018146083A1 (en) * 2017-02-09 2018-08-16 Crrc Qingdao Sifang Co., Ltd. Car body for a rail vehicle
JP2019502591A (en) * 2015-12-16 2019-01-31 上海晋飛新材料科技有限公司Ｓｈａｎｇｈａｉ Ｃｅｄａｒ Ｃｏｍｐｏｓｉｔｅｓ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． Process for manufacturing apron plates for equipment cabins in high-speed railway vehicles with composite materials
US10239566B2 (en) 2016-02-24 2019-03-26 Wabash National, L.P. Composite floor for a dry truck body
US10329763B2 (en) 2016-02-24 2019-06-25 Wabash National, L.P. Composite floor structure and method of making the same
US10407103B2 (en) 2017-01-11 2019-09-10 Wabash National, L.P. Mounting bracket for a truck body and method for mounting a composite truck body to a chassis
US10479405B2 (en) 2016-08-31 2019-11-19 Wabash National, L.P. Mounting bracket for a composite truck body floor
US10479419B2 (en) 2016-02-24 2019-11-19 Wabash National, L.P. Composite refrigerated semi-trailer and method of making the same
US10538051B2 (en) 2015-10-23 2020-01-21 Wabash National, L.P. Extruded molds and methods for manufacturing composite truck panels
US10549789B2 (en) 2015-09-08 2020-02-04 Wabash National, L.P. Joining a rail member to a composite trailer structure
US10596950B2 (en) 2015-02-23 2020-03-24 Wabash National, L.P. Composite refrigerated truck body and method of making the same
US10710423B2 (en) 2015-09-08 2020-07-14 Wabash National, L.P. Joining a suspension assembly to a composite trailer structure
US10829163B2 (en) 2017-08-10 2020-11-10 Wabash National, L.P. Transverse beam for composite floor structure and method of making the same
US10919579B2 (en) 2017-08-25 2021-02-16 Wabash National, L.P. Composite floor structure with embedded hardpoint connector and method of making the same
DE102021214650A1 (en) 2021-12-20 2023-06-22 Siemens Mobility GmbH Car body for a vehicle for passenger transport
EP4086143A4 (en) * 2020-01-02 2024-02-07 CRRC Qingdao Sifang Co., Ltd. Composite material vehicle body and composite material laying structure and laying method

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FR3024117B1 (en) 2014-07-22 2018-03-30 Alstom Transport Technologies STRUCTURAL WALLS FOR A RAILWAY VEHICLE FUND, ASSEMBLY METHOD AND RAILWAY VEHICLE THEREFOR

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Cited By (22)

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US11554708B2 (en) 2015-02-23 2023-01-17 Wabash National, L.P. Composite refrigerated truck body and method of making the same
US10596950B2 (en) 2015-02-23 2020-03-24 Wabash National, L.P. Composite refrigerated truck body and method of making the same
US11299213B2 (en) 2015-09-08 2022-04-12 Wabash National, L.P. Joining a rail member to a composite trailer structure
US10710423B2 (en) 2015-09-08 2020-07-14 Wabash National, L.P. Joining a suspension assembly to a composite trailer structure
US10549789B2 (en) 2015-09-08 2020-02-04 Wabash National, L.P. Joining a rail member to a composite trailer structure
US10538051B2 (en) 2015-10-23 2020-01-21 Wabash National, L.P. Extruded molds and methods for manufacturing composite truck panels
US11607862B2 (en) 2015-10-23 2023-03-21 Wabash National, L.P. Extruded molds and methods for manufacturing composite truck panels
JP2019502591A (en) * 2015-12-16 2019-01-31 上海晋飛新材料科技有限公司Ｓｈａｎｇｈａｉ Ｃｅｄａｒ Ｃｏｍｐｏｓｉｔｅｓ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． Process for manufacturing apron plates for equipment cabins in high-speed railway vehicles with composite materials
US10967920B2 (en) 2016-02-24 2021-04-06 Wabash National, L.P. Composite floor for a dry truck body
US10329763B2 (en) 2016-02-24 2019-06-25 Wabash National, L.P. Composite floor structure and method of making the same
US10239566B2 (en) 2016-02-24 2019-03-26 Wabash National, L.P. Composite floor for a dry truck body
US10479419B2 (en) 2016-02-24 2019-11-19 Wabash National, L.P. Composite refrigerated semi-trailer and method of making the same
US10479405B2 (en) 2016-08-31 2019-11-19 Wabash National, L.P. Mounting bracket for a composite truck body floor
US10407103B2 (en) 2017-01-11 2019-09-10 Wabash National, L.P. Mounting bracket for a truck body and method for mounting a composite truck body to a chassis
DE102017102553A1 (en) * 2017-02-09 2018-08-09 CG Rail - Chinesisch-Deutsches Forschungs- und Entwicklungszentrum für Bahn- und Verkehrstechnik Dresden GmbH Sidewall of a car body for a rail vehicle
CN110382328B (en) * 2017-02-09 2021-12-03 中车青岛四方机车车辆股份有限公司 Carriage for a rail vehicle
CN110382328A (en) * 2017-02-09 2019-10-25 中车青岛四方机车车辆股份有限公司 Compartment for rail vehicle
WO2018146083A1 (en) * 2017-02-09 2018-08-16 Crrc Qingdao Sifang Co., Ltd. Car body for a rail vehicle
US10829163B2 (en) 2017-08-10 2020-11-10 Wabash National, L.P. Transverse beam for composite floor structure and method of making the same
US10919579B2 (en) 2017-08-25 2021-02-16 Wabash National, L.P. Composite floor structure with embedded hardpoint connector and method of making the same
EP4086143A4 (en) * 2020-01-02 2024-02-07 CRRC Qingdao Sifang Co., Ltd. Composite material vehicle body and composite material laying structure and laying method
DE102021214650A1 (en) 2021-12-20 2023-06-22 Siemens Mobility GmbH Car body for a vehicle for passenger transport

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EP2660119B1 (en) 2018-09-12

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