EP0761879B1 - Absorbeur de bruit pour rails d'une voie ferrée - Google Patents
Absorbeur de bruit pour rails d'une voie ferrée Download PDFInfo
- 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
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)
Description
- la figure 1 est une vue en perspective partielle d'un rail d'une voie ferrée équipé d'absorbeurs de bruit selon l'invention,
- la figure 2 est une vue en coupe longitudinale d'un premier mode de réalisation d'un absorbeur de bruit selon l'invention,
- la figure 3 est une variante de l'absorbeur de bruit illustré à la figure 2,
- la figure 4 est une vue en perspective d'un amortisseur de bruit monté sur son support,
- la figure 5 est une vue en coupe suivant la ligne V-V de la figure 1,
- la figure 6 représente graphiquement les variations de la fréquence de résonance de l'absorbeur de bruit en fonction de la réduction de la largeur d'une fente radiale débouchant dans le logement du support qui reçoit l'absorbeur de bruit, et
- la figure 7 est une vue en coupe longitudinale d'un absorbeur de bruit monté à l'intérieur d'un élément tubulaire destiné à être emmanché à force dans un logement du support de l'absorbeur de bruit.
- le canal définissant le logement 20 du support 22 débouche aux deux faces d'extrémité 22e,
- la fente 24 débouche à la face arrière 22d du support 22,
- les orifices 26 sont ménagées au droit de la fente 24 pour recevoir les vis de blocage et de réglage 25.
Claims (10)
- Absorbeur de bruit pour rails (1) d'une voie ferrée, les rails (1) étant fixés sur des traverses (2) reposant sur un ballast (3), caractérisé en ce que l'absorbeur de bruit est constitué d'une masse active (12) rapportée sur le patin de rail (7) avec interposition d'un élément résilient (14), l'absorbeur de bruit étant positionné dans la zone du rail (1) située entre deux traverses consécutives (2).
- Absorbeur de bruit selon la revendication 1, caractérisé en ce que la masse active (12) est constituée par un corps métallique de forme cylindrique s'étendant parallèlement aux rails (1).
- Absorbeur de bruit selon la revendication 2, caractérisé en ce que l'élément résilient (14) est constitué d'un revêtement (15, 16) qui entoure la masse active (12).
- Absorbeur de bruit selon la revendication 3, caractérisé en ce que le revêtement est sous la forme d'une couche (15) qui recouvre la masse active (12) sur toute sa longueur.
- Absorbeur de bruit selon la revendication 3, caractérisé en ce que le revêtement est discontinu et réalisé sous la forme d'anneaux (16), par exemple régulièrement espacés le long de la masse active (12).
- Absorbeur de bruit selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'élément résilient (14) est réalisé en un matériau plastomère ou élastomère.
- Absorbeur de bruit selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est monté dans un logement (20) d'un support (22) rapporté contre le patin (7) et fixé à celui-ci, ledit support (22) étant un bloc de forme globalement parallélépipédique rectangle traversé de part en part par un canal central formant ledit logement (20).
- Absorbeur de bruit selon la revendication 7, caractérisé en ce que le logement (20) débouche radialement vers l'extérieur par une fente (24) qui s'étend sur toute la longueur du support (22), et en ce que des vis (25) permettent de réduire la largeur de cette fente (24) pour immobiliser l'absorbeur de bruit dans son logement (20) d'une part, et pour ajuster la fréquence de résonance de l'absorbeur d'autre part.
- Absorbeur de bruit selon l'une quelconque des revendications précédentes, caractérisé en ce que des absorbeurs sont montés de part et d'autre de chaque rail (1), deux absorbeurs en vis-à-vis étant immobilisés sur le patin (7) par un moyen de fixation (30) tel qu'un boulon.
- Absorbeur de bruit selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des absorbeurs de bruit sont montés d'un même côté d'un rail (1), le support (22) de chaque absorbeur étant coincé sur le patin de rail (7) pour obtenir son immobilisation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9510430A FR2738263B1 (fr) | 1995-09-06 | 1995-09-06 | Absorbeur de bruit pour rails d'une voie ferree |
FR9510430 | 1995-09-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0761879A1 EP0761879A1 (fr) | 1997-03-12 |
EP0761879B1 true EP0761879B1 (fr) | 2000-06-28 |
Family
ID=9482306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19960401872 Expired - Lifetime EP0761879B1 (fr) | 1995-09-06 | 1996-09-02 | Absorbeur de bruit pour rails d'une voie ferrée |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0761879B1 (fr) |
DE (1) | DE69609025T2 (fr) |
FR (1) | FR2738263B1 (fr) |
Cited By (1)
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)
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 |
CN101849068B (zh) | 2007-11-07 | 2013-01-02 | 何伟麟 | 可调谐震动吸收装置 |
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 |
CN115667631A (zh) * | 2020-04-28 | 2023-01-31 | 信道有限公司 | 路轨阻尼器安装设备和包含其的路轨阻尼器系统 |
WO2022100553A1 (fr) * | 2020-11-10 | 2022-05-19 | Wai Tat Innovation Limited | Dispositif d'amortissement de vibrations de chemin de fer à masses d'oscillation réfléchissantes |
Family Cites Families (4)
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. |
-
1995
- 1995-09-06 FR FR9510430A patent/FR2738263B1/fr not_active Expired - Lifetime
-
1996
- 1996-09-02 DE DE1996609025 patent/DE69609025T2/de not_active Expired - Lifetime
- 1996-09-02 EP EP19960401872 patent/EP0761879B1/fr not_active Expired - Lifetime
Cited By (1)
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 |
---|---|
EP0761879A1 (fr) | 1997-03-12 |
FR2738263A1 (fr) | 1997-03-07 |
FR2738263B1 (fr) | 1997-10-31 |
DE69609025T2 (de) | 2001-03-08 |
DE69609025D1 (de) | 2000-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0761879B1 (fr) | Absorbeur de bruit pour rails d'une voie ferrée | |
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 (fr) | Dispositif d'amortissement du bruit de crissement d'une roue métallique en contact avec une surface de roulement métallique. | |
EP0359655A1 (fr) | Perfectionnements apportés aux manchons antivibratoires hydrauliques | |
EP0816126B1 (fr) | Procédé d'insonorisation d'une roue de chemin de fer et roue de chemin de fer insonorisée | |
BE1017257A5 (fr) | Assise a niveau vibratoire reduit pour voie ferree. | |
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 | |
FR2975415A1 (fr) | Dispositif de lestage d’un garde-corps sur une surface telle qu’une toiture ou terrasse | |
EP1217126B1 (fr) | Voie ferrée pour véhicule guidé et appareil doté d'une telle voie ferrée | |
EP0587517A1 (fr) | Encastrement de la pointe mobile dans le berceau d'un coeur de croisement incorporé dans les longs rails soudés et procédé de réalisation d'un tel encastrement | |
BE1013240A6 (fr) | Dispositif de support pour rail de voie ferree. | |
EP1819558B1 (fr) | Dispositif amortisseur de vibrations comportant une collerette apte a venir en butee contre un bloc amortisseur | |
FR2808490A1 (fr) | Pare-boue insonorisant de passage de roue de vehicule automobile | |
FR2890988A1 (fr) | Rail de voie ferree a champignon amovible. | |
EP1541767A1 (fr) | Traverse pour voie ferrée | |
FR2771302A1 (fr) | Element d'appui et d'usure pour chassis de patin a roues en ligne | |
EP3645907B1 (fr) | Plateau de frein a tambour de vehicule automobile, frein a tambour associe et procede d'assemblage associe | |
EP0689944A1 (fr) | Ecran phonique, son procédé de montage sur une pièce tournante et pièce tournante comportant un tel écran | |
FR2737511A1 (fr) | Dispositif pour la pose d'un rail sur une assise en beton | |
EP1211106A2 (fr) | Suspension de véhicule automobile | |
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 |