EP3772443B1 - Schienenfahrzeug mit mindestens einem fussbodenaufbau - Google Patents

Schienenfahrzeug mit mindestens einem fussbodenaufbau Download PDF

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Publication number
EP3772443B1
EP3772443B1 EP20188686.8A EP20188686A EP3772443B1 EP 3772443 B1 EP3772443 B1 EP 3772443B1 EP 20188686 A EP20188686 A EP 20188686A EP 3772443 B1 EP3772443 B1 EP 3772443B1
Authority
EP
European Patent Office
Prior art keywords
insulation elements
floor
rail vehicle
elements
floor panel
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.)
Active
Application number
EP20188686.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3772443A1 (de
Inventor
Karl-Richard Kirchner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Holdings SA
Original Assignee
Bombardier Transportation GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bombardier Transportation GmbH filed Critical Bombardier Transportation GmbH
Publication of EP3772443A1 publication Critical patent/EP3772443A1/de
Application granted granted Critical
Publication of EP3772443B1 publication Critical patent/EP3772443B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B61D17/10—Floors

Definitions

  • the invention relates to a rail vehicle with at least one floor structure.
  • structure-borne noise is transmitted from a vehicle structure to a vehicle floor. This leads to vibrations and noise emissions.
  • the transmission of structure-borne noise can be reduced by structure-borne noise insulation and a reduction in structure-borne noise can be achieved on floor panels.
  • airborne noise is emitted from the vehicle structure, so that airborne noise insulation is required on the floor panels.
  • the transmission of structure-borne noise deteriorates airborne noise insulation. In the case of point support, different noise and vibration behavior then occurs on the floor panels for different load cases. It is known that structure-borne noise insulation or structure-borne noise reduction can be achieved by relatively heavy and thick floor panels, which, however, gives rise to weight problems.
  • connecting elements can be arranged between the vehicle structure and the vehicle floor, which have a different rigidity on floor panels in a door area than on floor panels in other areas of a rail vehicle car.
  • soundproofing can only react to different vibration scenarios in different areas of the rail vehicle. Different vibration scenarios are based, for example, on the driving characteristics of the rail vehicle and the weight load on the floor panels.
  • the CN 202608780 U describes mushroom-shaped connecting elements which are each inserted into a support under a floor panel by means of a positioning pin. Heads of the mushroom-shaped fasteners are each made of a rubber material and support the floorboard.
  • the disadvantage here is that each connecting element is designed for the same predetermined load range, ie the noise and vibration behavior is different for different loads. This affects the comfort of passengers.
  • the EP 1 193 165 A2 discloses a mounting part for elastically attaching vehicle floor panels to a vehicle frame of a rail vehicle.
  • the mounting part consists of a combination of metal elements and elastic elements. Again, each assembly part is designed for the same predetermined load range. In addition, the assembly part has a complex structure and is expensive to produce.
  • the JP 2007 069664 A discloses a rail vehicle with a vibration dampening floor structure.
  • PUR polyurethane
  • the polyurethane strips are also all designed for the same predetermined load range.
  • the invention is therefore based on the object of creating a rail vehicle with a floor structure that is simple in construction and can be insulated and/or dampened in different load ranges.
  • One advantage of the invention is that insulation and/or damping of the vibrations in the floor panel are not only designed for a single predefined load range, but for at least two predefined load ranges, i.e. a base load range and at least one overload range. Because of this, the floorboards can be made light and thin, thus enabling a reduction in mass. Vibration isolation or vibration reduction or structure-borne noise insulation or structure-borne noise reduction as well as a reduction in the radiated airborne noise are made possible by increasing the airborne noise insulation on the floor panel with the aid of the first insulation elements and the further insulation elements. This protects the floor panel from damage. The service life of the floor panel is thus increased. Furthermore, this also improves the airborne sound insulation or soundproofing, since the structure-borne sound coupling between the bearing element and the floor panel is reduced. This increases passenger comfort.
  • Insulation is understood here to mean a spring effect without reducing vibration energy.
  • Damping is understood here to mean a conversion of vibrational energy into heat energy. In damping, viscous damping or dry friction takes place, which is silent to a human.
  • a structure-borne noise insulating effectiveness of the floor structure can therefore be improved in terms of vibrations by adjusting the spring properties or stiffness, ie a material and/or a geometry, of the first insulation elements, the further insulation elements, the floor panel and/or the bearing element.
  • the floorboard can therefore be flexible or deflection-free or rigid.
  • the floor panel can support a maximum weight of an estimated number of people per square meter. This can increase the lifespan of the floor structure.
  • a flexible, mass-afflicted floor panel is advantageous for the airborne sound insulation, which is low-frequency tuned by the first insulation element and the further insulation elements.
  • the damping ie the material properties of the first insulation elements and the further insulation elements, can be adjusted.
  • the material properties can be adjusted, for example, by adding damping material.
  • An elastic material can have spring properties and damping properties, for example.
  • the floor panel exhibits at least one predefined deflection in the event of the predefined overload, with at least one deflected area being supported by the further insulation elements.
  • the other insulation elements in the deflected area allow structure-borne noise insulation as a load limit with a deflection limitation, even with an increased weight load on the floor panel.
  • the first insulation elements can each have a first length and the further insulation elements can each have a further length that is less than the first length.
  • the first insulation elements and the further insulation elements are matched to a deflection of the floor panel.
  • the further insulation elements are each at a distance from the floor panel.
  • the airborne sound insulation is retained by a load-independent structure-borne noise insulation or vibration insulation.
  • the distances between the other insulation elements and the floor panel are matched to the deflection of the floor panel. This ensures that the other insulation elements are activated when the base plate is subjected to an increased weight load. The distances can result from different lengths of the first insulation elements and the further insulation elements.
  • the distance between the other insulation elements can be adjustable, in particular by means of shim elements, threaded elements and/or combinations of holes and pins. Then standardized insulation elements with the same lengths can be used.
  • the first insulation elements each have a first stiffness and the other insulation elements each have an additional stiffness that is less than, equal to or greater than the first stiffness, with the additional stiffness in particular being dependent on the distance between the other insulation elements matched to the floor slab.
  • the stiffness characterizes the spring character of the insulation elements and thus determines the insulation and/or damping and the mass of the floor panel.
  • the storage frequency of the floor panel is matched to the rigidity of the first insulation element and the other insulation elements and to the distance between the other insulation elements and the floor panel. The lower the bearing frequency of the floor panel, the better the airborne sound insulation.
  • the first insulation elements and the further insulation elements are preferably connected in parallel.
  • the additional stiffness of the additional isolation elements can also be less than the first stiffness of the first isolation elements. For example, the further insulation elements then border on the floor panel or the further insulation elements are pressed against the floor panel.
  • the first insulation elements and/or the further insulation elements can form point bearings and are in particular constructed in the shape of a mushroom. This results in a small contact area. It is possible to fully utilize the first isolation elements and the further isolation elements for the spring character, which is determined by a free, unloaded area of the spring, which has a shape factor.
  • the first insulation elements and/or the further insulation elements can form strip bearings which are constructed in particular in a linear manner.
  • the strip supports or line supports can have interruptions so that partial strips can be used in a targeted manner.
  • the strip bearings are easy to produce. Prefabrication or preinstallation is possible.
  • the first insulation elements and/or the further insulation elements can form prismatic bearings, which are constructed in particular in the form of a cuboid.
  • the prism bearings are also easy to produce. Prefabrication or pre-installation is also possible here.
  • first insulation elements and/or the further insulation elements can be spaced apart from one another and/or can be adjacent to one another. This is a variable arrangement the first insulation elements and the further insulation elements are possible and the insulation and/or damping of the floor panel can be influenced well.
  • first insulation elements and/or the further insulation elements can be detachably fastened to the floor panel and/or the bearing element.
  • the bearing element is expediently at least part of a side member, a cross member, a plate and/or an underbody panel, with the underbody panel in particular being at least partially corrugated.
  • the underbody panel can be corrugated. This also enables a variable area of use for the first insulation elements and the further insulation elements, regardless of the geometry of the bearing element.
  • At least one insulating layer can be arranged between the first insulating elements and/or the further insulating elements, which layer fills at least one space between the floor panel and the bearing element.
  • the insulating layer enables additional sound insulation, e.g. for sound absorption, and/or thermal insulation.
  • the first insulation elements and/or the further insulation elements can have an elastic material and/or an inelastic material.
  • plastics can also be used.
  • the first insulating elements and the further insulating elements can thus have materials with different elasticity.
  • the object is achieved in a rail vehicle with at least one floor structure.
  • the Figures 1a to 2b each represent an exemplary embodiment of a floor structure 10.1, 10.2, 10.3, 10.4 and 10.5 with a floor panel 11, mushroom-shaped first insulation elements 20 and also mushroom-shaped further insulation elements 30.
  • the first insulation elements 20 and the further insulation elements 30 each have the same length.
  • the first insulation elements 20 each comprise a first head 20.1 and a first bolt 20.2 which is fastened to the first head 20.1.
  • the further insulation elements 30 each comprise a further head 30.1 and a further bolt 30.2 which is fastened to the further head 30.1.
  • the floor structure 10.1, 10.2, 10.3, 10.4 and/or 10.5 cannot be part of a here be further illustrated rail vehicle and is shown here in a corresponding installation position.
  • the first head 20.1 and the other head 30.1 are each designed in the form of a spherical segment in the exemplary embodiments. However, it is also conceivable that the first head 20.1 and/or the further head 30.1 are each designed in the shape of a cone. In addition, the first head 20.1 and/or the further head 30.1 can be designed conically with a cylindrical extension on the first bolt 20.2 or on the further bolt 30.2, cf. Figures 3 and 4 .
  • FIG. 1a to 1c point bearings P between the floor panel 11 and the first insulation elements 20 are shown.
  • the Figures 2a and 2b each show a point bearing P between the floor panel 11 and a first insulation element 20.
  • a point bearing P is a bearing on a point bearing that is larger than a point in the purely mathematical sense. With increasing pressure on the floor panel 11, a diameter of the point bearing can increase.
  • first insulation elements 20 and the further insulation elements 30 each have the same geometries and materials with the same modulus of elasticity.
  • the stiffnesses of the first isolation elements 20 and the further isolation elements 30 are therefore the same.
  • the first bolt 20.2 and/or the other bolt 30.2 can be made of metal, for example.
  • the first head 20.1 and the other head 30.2 can be made of rubber or a synthetic rubber, in particular EPDM, for example.
  • the first insulation element 20 and the further insulation element 30 can each have a polyurethane (PUR) material.
  • PUR polyurethane
  • first insulation elements 20 and the further insulation elements 30 each have the same geometries.
  • the first insulation elements 20 and the further insulation elements 30 are made from materials with different moduli of elasticity.
  • the first insulation elements 20 and the further insulation elements 30 can have different geometries.
  • the further insulation elements 30 have a higher rigidity than the first insulation elements 20.
  • the further insulation elements 30 are each arranged at a distance d from the floor panel 11 .
  • the first insulation elements 20 adjoin the floor panel 11 . If the floor panel 11 sags, a load or load is no longer absorbed only by the first insulation elements 20 but also by the additional insulation elements 30 .
  • the deflection of the floor panel 11 takes place in the Figures 1a and 1b between the first insulation elements 20.
  • the deflection of the floor panel 11 takes place in the Figures 2a and 2b on the first insulation elements 20.
  • the floor structure 10.6 comprises the floor panel 11, a crossbeam 13, a corrugated metal sheet 14 and an insulating layer 15.
  • the corrugated metal sheet 14 is arranged below the crossbeam 13 here. Only one further insulation element 30 is shown here as an example.
  • the other head 30.1 of the other insulation element is cone-shaped here with a cylindrical projection on the other bolt 30.2.
  • In 4 is a cross section through the floor structure 10.6 along the line AA in 3 shown enlarged.
  • the other bolt 30.2 of the other insulation element 30 is fastened in the cross member 13, for example by screwing, gluing, clamping or pressing.
  • the cross member 13 is fastened to the corrugated sheet metal 14.
  • the insulating layer 15 runs on both sides along the cross member 13.
  • a floor structure 10.7 in particular for a rail vehicle, is shown with a first prismatic bearing PR1 and a further prismatic bearing PR2.
  • the first prism bearing PR1 and the additional prism bearing PR2 have the same geometries but materials with different moduli of elasticity. Therefore, the first prism bearing PR1 has a different rigidity than the other prism bearing PR2.
  • the first prism bearing PR1 and the further prism bearing PR2 are arranged here between the floor panel 11 and the corrugated metal sheet 14 .
  • the first prism bearing PR1 and the further prism bearing PR2 can each have a polyurethane (PUR) material.
  • PUR polyurethane
  • the insulating layer 15 is also arranged between the floor panel 11 and the corrugated metal sheet 14 .
  • the corrugated metal sheet 14 is attached to the cross member 13 . This arrangement of the corrugated sheet 14 and the cross member 13 provides an alternative to the arrangement in FIGS Figures 3 and 4 represent.
  • a strip support S is a support on a linear support that is wider than a line in the purely mathematical sense.
  • a strip bearing is flat, i.e. flatter than a prism bearing (cf. figure 5 ). With increasing pressure on the floor panel 11, the strip-shaped bearing can become wider.
  • the strip bearings S can each have a polyurethane (PUR) material.
  • Point supports P are arranged along crossbeams 13 in zones Z1 and Z2. Additional strip bearings S are present in a central area B between the crossbeams 13 . In zone 3 only strip bearings S are arranged. With regard to special load requirements, combinations of point supports P and strip supports S can be selected in such a way that load absorption is optimized. For example, the strip bearings S in 6 have a different stiffness than the point supports P.
  • a polyurethane (PUR) material is used for the point bearings P, the strip bearings S, the first prismatic bearing PR1 and/or the further prismatic bearing PR2, water absorption is also possible, whereby the floor panel 11 is protected from moisture.
  • PUR polyurethane
  • At least one rigid material ie a material without resilience, can also be combined with PUR and/or a synthetic rubber. The rigid material can prevent moisture absorption and/or provide thermal insulation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP20188686.8A 2019-08-07 2020-07-30 Schienenfahrzeug mit mindestens einem fussbodenaufbau Active EP3772443B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019121370.3A DE102019121370A1 (de) 2019-08-07 2019-08-07 Fußbodenaufbau, insbesondere für ein Schienenfahrzeug, und Schienenfahrzeug mit mindestens einem Fußbodenaufbau

Publications (2)

Publication Number Publication Date
EP3772443A1 EP3772443A1 (de) 2021-02-10
EP3772443B1 true EP3772443B1 (de) 2023-05-31

Family

ID=71894713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20188686.8A Active EP3772443B1 (de) 2019-08-07 2020-07-30 Schienenfahrzeug mit mindestens einem fussbodenaufbau

Country Status (4)

Country Link
EP (1) EP3772443B1 (es)
CN (1) CN215851222U (es)
DE (1) DE102019121370A1 (es)
ES (1) ES2953530T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11787449B2 (en) * 2021-03-05 2023-10-17 Bombardier Transportation Gmbh Floor structure of a rail vehicle and method of manufacturing such floor structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US194580A (en) * 1877-08-28 Improvement in spring-floors
ZA933714B (en) * 1992-06-24 1994-01-03 Alusuisse Lonza Services Ag Sound proofing and vibration dampening elastic connecting element
AT409751B (de) 2000-10-02 2002-11-25 Getzner Werkstoffe Gmbh Montageteil zur elastischen befestigung von fahrzeugbodenplatten
JP4097894B2 (ja) * 2000-12-28 2008-06-11 早川ゴム株式会社 防音床構造、防音床材及び防音床構造の施工方法
JP4916147B2 (ja) * 2005-09-05 2012-04-11 東海旅客鉄道株式会社 防振浮き床構造
CN202608780U (zh) 2012-03-26 2012-12-19 青岛四方庞巴迪铁路运输设备有限公司 高速列车整体式浮动减振地板
FR3004526B1 (fr) * 2013-04-11 2018-10-12 Constellium Valais Sa (Constellium Valais Ag) (Constellium Valais Ltd.) Dispositif de chauffage et/ou de refrigeration pour vehicule munis d'un plancher interne

Also Published As

Publication number Publication date
ES2953530T3 (es) 2023-11-14
DE102019121370A1 (de) 2021-02-11
CN215851222U (zh) 2022-02-18
EP3772443A1 (de) 2021-02-10

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