EP0761879B1 - Schallabsorber für Eisenbahnschienen - Google Patents

Schallabsorber für Eisenbahnschienen Download PDF

Info

Publication number
EP0761879B1
EP0761879B1 EP19960401872 EP96401872A EP0761879B1 EP 0761879 B1 EP0761879 B1 EP 0761879B1 EP 19960401872 EP19960401872 EP 19960401872 EP 96401872 A EP96401872 A EP 96401872A EP 0761879 B1 EP0761879 B1 EP 0761879B1
Authority
EP
European Patent Office
Prior art keywords
sound absorber
absorber according
rail
support
active mass
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.)
Expired - Lifetime
Application number
EP19960401872
Other languages
English (en)
French (fr)
Other versions
EP0761879A1 (de
Inventor
Laurent Beaubatie
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.)
Hutchinson SA
Original Assignee
Hutchinson SA
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 Hutchinson SA filed Critical Hutchinson SA
Publication of EP0761879A1 publication Critical patent/EP0761879A1/de
Application granted granted Critical
Publication of EP0761879B1 publication Critical patent/EP0761879B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise

Definitions

  • the present invention relates to a noise for rails of a railway track.
  • iron-on-iron contact between the tire bandage of a train and the rails of a railroad is a source of noise resulting from vibratory excitation of wheels and rails. These noises turnover are an important factor overall noises generated when a train passes.
  • one solution is to have panels or screens phonic on either side of the track.
  • Another solution is to change the profile of the rails of the train tracks and / or train wheels.
  • the object of the invention is to design a dynamic noise absorber or damper of a new structure capable of fighting effectively against road noise.
  • the invention provides an absorber noise for rails of a railway track, the rails being fixed on sleepers resting on a ballast, this noise absorber being characterized in that it is consisting of an active mass added to the skid of rail with interposition of a resilient element, the noise absorber being positioned in the area of the rail located between two consecutive sleepers.
  • the active mass of the noise absorber is constituted by a metallic body of cylindrical shape extending parallel to the rails.
  • the resilient element consists of a coating that surrounds the active mass of the absorber noise.
  • the coating constituting the resilient element is in the form of a layer which covers the active mass over its entire length.
  • the coating forming the element resilient is discontinuous and made in the form regularly spaced rings along the mass active.
  • the active mass of the noise absorber is for example made of steel, and the resilient element is made of a plastomer or elastomer material.
  • the noise damper is mounted in a housing of a metal support attached to the shoe rail and fixed to it, the support being a block of generally rectangular shape crossed rectangle right through through a central channel forming the housing of the noise absorber.
  • the housing of the support which receives the noise absorber leads to the outside of the support through a slot radial whose width is adjustable, by means of screws example, to immobilize the noise absorber in its housing on the one hand, and to adjust the frequency of resonance of the noise absorber on the other hand.
  • the noise absorber is previously mounted in a tubular element which is force fitted into the support housing.
  • the absorbers of noise can be mounted on either side of each rail of the track, or on one side of the rails.
  • noise absorbers are not necessarily mounted between all sleepers but can be mounted than both ties for example.
  • noise absorber provides efficiency vibratory both vertically and in the transverse direction, its resonant frequency being much the same in both directions.
  • a railway track is consisting of two parallel rails 1 fixed on sleepers 2 resting on a ballast 3.
  • the representation of the railway was intentionally limited to a single rail 1 for reasons of simplification.
  • a rail 1 is formed by a profile metallic comprising a central core 5, one of which end is extended by a mushroom 6 forming the rolling surface for the tire of the wheels of a train, and the other end of which extends by a foot rail or shoe 7 which extends on either side of the core 5 and is fixed to each cross member 2 by means of lag screw 9, for example.
  • a noise absorber or damper 10 according to the invention comprises an active mass 12 of form cylindrical which is surrounded by a resilient element 14 which extends over part or the entire length of the active mass 12.
  • resilient element 14 is a covering in the form a layer 15 which coats the active mass 12 over the entire the length of it.
  • this coating is discontinuous and split into several rings 16 which are for example regularly spaced along the active mass 12.
  • a ring 16 is at least provided at each end of the active mass 12.
  • the active mass 12 is metallic, e.g. steel, and the resilient element 14 is made of a polymer or elastomer material, for example example.
  • each noise absorber 10 is mounted in a housing 20 of complementary shape which is provided in a support metallic 22 advantageously made of aluminum.
  • Each support 22 is a shape block generally rectangular parallelepiped axially pierced by a central channel, of circular cross section, which forms the housing 20 of the noise absorber 10.
  • the housing 20 opens radially outward through a slot 24 which extends over the entire length of the support 22.
  • Locking means such as screws 25 intended for engage in holes 26, reduce the width of the slot 24 to immobilize the absorber of noise 10 in its housing 20 on the one hand, and to adjust the resonance frequency of the noise absorber 10 on the other hand.
  • each support 22 has a cavity 28 which extends over the entire the length of the support and whose profile, in section right, is generally complementary to that of the skate rail 7.
  • a hole 29 which is drilled perpendicular to the housing 20 leads to the two front 22c and rear 22d of support 22 for receiving a fixing means, such as a bolt 30 ( Figure 5) to immobilize simultaneously on a pad 7 two supports 22 mounted on either side of a rail 1.
  • noise absorbers 10 are reported on rails 1 in space located between two consecutive sleepers 2. More specifically, with particular reference to FIG. 5, noise absorbers 10 are reported on both sides of a rail 1 and their assembly is carried out as explained below.
  • Each noise absorber 10 is added by so as to engage the rail shoe 7 in the notch 28 formed on the front side face 22c of the support 22.
  • Two noise absorbers 10 are mounted opposite on either side of rail 1 and are joined to each other by the bolt 30 to immobilize them on the pad 7.
  • the masses active 12 noise absorbers 10 then extend parallel to rail 1.
  • each noise absorber 10 is mounted on one side of the rail 1.
  • each noise absorber 10 can be fixed on the rail 1 by wedging the shoe 7 in the notch 28 of the support 22 of each absorber 10.
  • each absorber of noise 10 has a resonant or tuning frequency which depends in particular on the thickness of the resilient element 14 and the length over which it covers the mass active 12.
  • the screws 25 which allow the noise absorber 10 to be immobilized in the housing 20 of its support 22 as a result of a decrease of the width of the slot 24, also makes it possible to adjust the resonant frequency by varying the width from this slot 24.
  • Figure 6 illustrates graphically the variations of the resonant frequency F of a noise absorber as a function of the value of pinch P of slot 24, this pinch value corresponding to the reduction in the width of the slot 24 obtained by means of screws 25.
  • Curve C corresponding shows that the resonant frequency increases with the pinch value.
  • This curve C has been obtained for a given configuration, this configuration corresponding to an active mass 12 of 200 mm in length and 50 mm in diameter, with one element resilient 14 with a thickness of 4.5 mm covering the active mass 12 over its entire length and consisting of a elastomer having a dynamic modulus of the order of 1.2 MPa (shear modulus).
  • a noise damper 10 can have a length between 100 and 300 mm, for example 200 mm, this length being of course less than the distance between two sleepers 2, its diameter is around 50 mm, and the thickness of the resilient element 14 is of the order of 5 mm.
  • a noise absorber 10 can be housed in a tubular element 35, and this assembly is mounted at force in the housing 20 of the support 22.
  • the slot 24 and the screws 25 are removed, i.e. that it is not possible in this case to be able to adjust the resonance frequency of the noise absorber 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)

Claims (10)

  1. Schallabsorber für Schienen (1) eines Schienenweges, wobei die Schienen (1) an den auf Bettungsmaterial (3) befindlichen Querschwellen (2) befestigt sind, dadurch gekennzeichnet, daß der Schallabsorber von einer aktiven Masse (12) gebildet wird, die am den Schienenfuß (7) unter Zwischenfügung eines Federelements (14) angebracht ist, wobei der Schallabsorber in dem zwischen zwei aufeinanderfolgenden Querschwellen (2) befindlichen Bereich der Schiene (1) angeordnet ist.
  2. Schallabsorber nach Anspruch 1, dadurch gekennzeichnet, das die aktive Masse (12) durch einen sich parallel zu den Schienen (1) erstreckenden zylindrischen Metallkörper gebildet wird.
  3. Schallabsorber nach Anspruch 2, dadurch gekennzeichnet, daß das Federelement (14) durch eine die aktive Masse (12) umgebende Ummantelung (15, 16) gebildet wird.
  4. Schallabsorber nach Anspruch 3, dadurch gekennzeichnet, daß die Ummantelung die Form einer Schicht (15) hat, die die aktive Masse (12) über ihre gesamte Länge bedeckt.
  5. Schallabsorber nach Anspruch 3, dadurch gekennzeichnet, daß die Ummantelung diskontinuierlich ausgebildet ist und in Form von Ringen (16) vorgesehen ist, die beispielsweise entlang der aktiven Masse (12) regelmäßig beabstandet sind.
  6. Schallabsorber nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Federelement (14) aus Plastomermaterial oder Elastomermaterial ist.
  7. Schallabsorber nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieser in einer am Schienenfuß (7) angebrachten und an diesem befestigten Aufnahme (20) eines Halteelements (22) montiert ist, wobei das Halteelement (22) ein Block mit im wesentlichen rechteckiger Parallelepipedform ist, der von einem die Aufnahme (20) bildenden Mittelkanal vollständig durchquert wird.
  8. Schallabsorber nach Anspruch 7, dadurch gekennzeichnet, daß die Aufnahme (20) radial nach außen in einen Schlitz (24) mündet, der sich über die gesamte Länge des Halteelements (22) erstreckt, und daß Schrauben (25) eine Verringerung der Breite des Schlitzes (24) gestatten, um einerseits den Schallabsorber in seinem Gehäuse unbeweglich zu machen und andrerseits die Resonanzfrequenz des Absorbers einzustellen.
  9. Schallabsorber nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Absorber von beiden Seiten jeder Schiene (1) montiert sind, wobei zwei einander gegenüberliegende Absorber mittels einer Befestigungseinrichtung (30), wie z.B. einer Schraube, am Schienenfuß (7) unbeweglich angeordnet sind.
  10. Schallabsorber nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß Schallabsorber an der gleichen Seite einer Schiene (1) befestigt sind, wobei das Halteelement (22) von jedem Absorber am Schienenfuß (7) festgeklemmt ist, um Unbeweglichkeit zu erreichen.
EP19960401872 1995-09-06 1996-09-02 Schallabsorber für Eisenbahnschienen Expired - Lifetime EP0761879B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9510430 1995-09-06
FR9510430A FR2738263B1 (fr) 1995-09-06 1995-09-06 Absorbeur de bruit pour rails d'une voie ferree

Publications (2)

Publication Number Publication Date
EP0761879A1 EP0761879A1 (de) 1997-03-12
EP0761879B1 true EP0761879B1 (de) 2000-06-28

Family

ID=9482306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960401872 Expired - Lifetime EP0761879B1 (de) 1995-09-06 1996-09-02 Schallabsorber für Eisenbahnschienen

Country Status (3)

Country Link
EP (1) EP0761879B1 (de)
DE (1) DE69609025T2 (de)
FR (1) FR2738263B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1985051B (zh) * 2003-07-11 2011-08-17 潘得路有限责任公司 铁轨调谐减振器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9719864D0 (en) 1997-09-19 1997-11-19 Univ Southampton Rail damper
BE1013746A3 (nl) 2000-10-10 2002-07-02 Composite Damping Material Nv Trillingsdemper voor spoorstaven.
GB2399123B (en) * 2003-03-05 2006-03-01 Corus Uk Ltd Rail damper
GB2404942A (en) * 2003-07-29 2005-02-16 Corus Uk Ltd Damping of rail tracks
GB2421265A (en) * 2004-12-16 2006-06-21 Tiflex Ltd Railway rail with vibration damper
EP2207934B1 (de) * 2007-11-07 2016-04-13 Wai Lun Ho Abstimmbare schwingungsdämpfungsvorrichtung
CN110714372A (zh) * 2019-11-15 2020-01-21 中铁二院工程集团有限责任公司 一种用于延缓钢轨波磨发展的动力吸振耗能装置
US20230049253A1 (en) * 2020-04-28 2023-02-16 Talent Power Limited Rail Damper Mounting Apparatus and Rail Damper Systems Containing the Same
WO2022100553A1 (en) * 2020-11-10 2022-05-19 Wai Tat Innovation Limited Railway vibration damping device with mirrored oscillation masses

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631492A1 (de) * 1986-09-16 1988-03-17 Schwartz Heinz Koerperschall-minderung am schienenstrang eines eisenbahngleises
DE3939215A1 (de) * 1989-11-28 1991-05-29 Schwartz Heinz Vorrichtung zur reduzierung von schallenergie am verkehrssystem rad/schiene
DE4207334A1 (de) * 1992-03-07 1993-09-23 Friedrich Ing Grad Schmid Eisenbahnschiene
NL9300891A (nl) * 1993-05-25 1994-12-16 Edilon Bv Spoorstaaf.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1985051B (zh) * 2003-07-11 2011-08-17 潘得路有限责任公司 铁轨调谐减振器

Also Published As

Publication number Publication date
FR2738263A1 (fr) 1997-03-07
DE69609025D1 (de) 2000-08-03
DE69609025T2 (de) 2001-03-08
FR2738263B1 (fr) 1997-10-31
EP0761879A1 (de) 1997-03-12

Similar Documents

Publication Publication Date Title
EP0761879B1 (de) Schallabsorber für Eisenbahnschienen
FR2585096A1 (fr) Arbre de direction a longueur variable pour dispositifs de direction de vehicules automobiles
FR2780016A1 (fr) Bogie de vehicule ferroviaire et procede de fabrication d'un longeron d'un tel bogie
FR2756247A1 (fr) Roue folle pour ensemble de propulsion
EP2554399B1 (de) Vorrichtung zur Dämpfung des Knirschgeräusches eines Metallrads auf einer metallischen Rolloberfläche
EP0359655A1 (de) Hydraulisch gedämpfte Lagerbuchsen
EP0816126B1 (de) Schalldämpfungsverfahren eines Schienenrades und schallgedämpftes Schienenrad
BE1017257A5 (fr) Assise a niveau vibratoire reduit pour voie ferree.
FR2975415A1 (fr) Dispositif de lestage d’un garde-corps sur une surface telle qu’une toiture ou terrasse
CA3018004A1 (fr) Dispositif absorbeur de bruit pour roue de vehicule ferroviaire et roue de vehicule ferroviaire associee
FR2855194A1 (fr) Systeme de fixation de rails sur un ouvrage d'art tel qu'un viaduc
FR3062403A1 (fr) Attache de rail destinee a etre fixee sur une traverse de voie ferroviaire
EP1217126B1 (de) Gleis für ein schienengebundenes Fahrzeug und eine ein derartiges Gleis enthaltende Einrichtung
EP0587517A1 (de) Einbau einer beweglichen Herzstückspitze in einer Kreuzung langer geschweisster Eisenbahnschienen und Verfahren dazu
BE1013240A6 (fr) Dispositif de support pour rail de voie ferree.
EP1819558B1 (de) Schwingungsdämpfungsvorrichtung mit einem bund, der in anlage an eine dämpfungseinheit gebracht werden kann
FR2808490A1 (fr) Pare-boue insonorisant de passage de roue de vehicule automobile
FR2890988A1 (fr) Rail de voie ferree a champignon amovible.
EP1541767A1 (de) Gleisschwelle
FR2771302A1 (fr) Element d'appui et d'usure pour chassis de patin a roues en ligne
EP3645907B1 (de) Platte für eine trommelbremse eines kraftfahrzeugs, zugehörige trommelbremse und zugehöriges montageverfahren
EP0689944A1 (de) Schallschutzschirm, Verfahren zur dessen Montage auf einem drehenden Teil und drehendes Teil mit einem solchen Schirm
FR2737511A1 (fr) Dispositif pour la pose d'un rail sur une assise en beton
EP1211106A2 (de) Radaufhängung für ein Kraftfahrzeug
CH639718A5 (fr) Ensemble d'elements pour passage a niveau de voie ferree.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES GB IT NL SE

17P Request for examination filed

Effective date: 19970515

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19990805

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000628

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000628

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000628

REF Corresponds to:

Ref document number: 69609025

Country of ref document: DE

Date of ref document: 20000803

ITF It: translation for a ep patent filed

Owner name: NOTARBARTOLO & GERVASI S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000928

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20000628

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140922

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20140929

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20140919

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69609025

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150930