EP1904356A2 - Method and device for determining the risk of derailment of railway vehicles - Google Patents

Method and device for determining the risk of derailment of railway vehicles

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Publication number
EP1904356A2
EP1904356A2 EP06741044A EP06741044A EP1904356A2 EP 1904356 A2 EP1904356 A2 EP 1904356A2 EP 06741044 A EP06741044 A EP 06741044A EP 06741044 A EP06741044 A EP 06741044A EP 1904356 A2 EP1904356 A2 EP 1904356A2
Authority
EP
European Patent Office
Prior art keywords
rail
measuring
measuring elements
horizontal
signals
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
EP06741044A
Other languages
German (de)
French (fr)
Other versions
EP1904356B1 (en
Inventor
Johannes Stephanides
Dietmar Maicz
Walter Weilinger
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.)
Hottinger Bruel and Kjaer GmbH
Original Assignee
Hottinger Baldwin Messtechnik GmbH
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Publication date
Application filed by Hottinger Baldwin Messtechnik GmbH filed Critical Hottinger Baldwin Messtechnik GmbH
Priority to PL06741044T priority Critical patent/PL1904356T3/en
Publication of EP1904356A2 publication Critical patent/EP1904356A2/en
Application granted granted Critical
Publication of EP1904356B1 publication Critical patent/EP1904356B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
    • B61L23/04—Control, warning, or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route
    • B61L23/042—Track changes detection
    • B61L23/047—Track or rail movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
    • B61F9/005—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels by use of non-mechanical means, e.g. acoustic or electromagnetic devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E01B35/12—Applications of measuring apparatus or devices for track-building purposes for measuring movement of the track or of the components thereof under rolling loads, e.g. depression of sleepers, increase of gauge

Definitions

  • the invention relates to a method and a device for detecting the derailment risk of rail vehicles.
  • a cost-efficient and safe railway operation is only possible by accurate knowledge of the condition of track and vehicle.
  • the assessment of driving safety plays a key role here. From the vehicle behavior, the resulting resource consumption and changes to the superstructure can be derived.
  • Fixed measuring sections for detecting rail loads are known, which comprise a weighing section in a track section.
  • the rails are based on load cells, e.g. are installed in weighing sleepers, which are designed so that they are insensitive to bending moments and shear forces.
  • the invention has for its object to provide a method and an apparatus of the type described in the introduction, with which also derailment risk factors can be reliably detected and evaluated by means of a fixed measuring point.
  • a method for detecting the risk of derailment by means of a measuring section of a series of measuring elements attached to the rails and which apply force and supply corresponding electrical signals to an electronic signal evaluation device is characterized in that measuring elements are mounted on the rail head outer edge and on both rail foot rests Signals are derived, which indicate the movement of the rail in the horizontal direction, that measuring elements on both sides of the rail web record rail longitudinal stresses that from a rail foot supporting measuring element on the rail applied, in accordance with the RadaufStandsddling in the horizontal direction migratory horizontal and vertical forces are absorbed, and that then in the evaluation of the transmitted signals, a continuous information array is formed indicating instabilities and track displacement forces.
  • an information array is formed from a plurality of information cells such that their signal components are continuously connected to one another.
  • the invention also relates to an apparatus for carrying out the method, comprising a measuring section of a series of attached to the rails and measuring elements connected to these electronic Signalauswoke pain, characterized in that the measuring elements on the rail head outer edge, on both Schienenfußau jointr skilledn and on both sides the rail web are mounted in its neutral fiber and are designed as strain gauges which absorb horizontal displacements and rail longitudinal stresses, and that the rail foot is supported by a measuring element which receives the horizontal and vertical forces in a horizontally migrating RadaufStandstician.
  • strain gauges are expediently applied as measuring elements. Strain gauges can be applied to the rail web in the neutral fiber at a negative and a positive 45 ° angle to the neutral fiber.
  • the measuring element supporting the rail foot has at least one bar-shaped force introduction part, which can be connected to the rail foot, and at least one bar-shaped force discharge part, which can be connected to a threshold, these parts being parallel and horizontal one above the other are arranged, and that between the force input and Kraftaus effetsutz at least one Meßsenkungscontract at least a deformation body is provided, wherein the force introduction member is spaced by a horizontal transverse gap from Kraftauslei- tion part and both parts are laterally connected to each at least one vertically oriented deformation body in which vertically spaced at least two Meßsenkungspaare are provided, the upper Meßsenkungsschreib is provided for detecting the horizontal and the lower Meßsenkungsschreib for detecting the vertical forces.
  • FIG. 1 a and 1b each show a schematic cross section through a measuring element supporting the associated rail foot according to the invention, including a measuring display diagram showing different force application cases
  • FIG. 2 shows a schematic partial representation of the rail measuring path
  • FIG. 3 a shows a schematic perspective partial representation of a rail with the applied thereto measuring elements
  • Fig. 3b is a force diagram.
  • Fig. 1 shows in section a arranged below the rail S Y / Q-force measuring element, which makes it possible to record forces in the Y and Q direction, which originate from a wheel and are introduced via the rail S.
  • the foot of the measuring element corresponds exactly to that of a "UIC-60" rail cross-section.
  • standard rail fastening elements tension clamp, elastic intermediate layer, angled guide plate
  • the measuring element supporting the rail foot has at least one beam-shaped force introduction part, which can be connected to the rail foot, and at least one beam-shaped force extraction part, which can be connected to a threshold arranged.
  • At least one pair of countersinks is provided on at least one deformation element between the force introduction part and the force output part.
  • the force introduction part is spaced from the force output part by a horizontal cross gap, and both parts are laterally connected to an at least partially vertically oriented deformation body, in which at least two pairs of counter sinks are provided vertically spaced apart.
  • the upper Meßsenkungsschreib is provided for detecting the horizontal and the lower Meßs- kungspar for detecting the vertical forces.
  • the point of application of the Q-force due to movements of the wheel R moves e.g. by + • 10 mm in Y direction.
  • the introduction of Q force occurred centrally, in the case of FIG. 1 b a displacement of the force application point in the horizontal direction by about 10 mm.
  • the non-centric introduction of force results in the measurement diagram, a voltage increase of the load-side lower Meßsenkungsharm by about 0.2 mV / V.
  • Figs. 3a and 3b are in the test section also on the rails S strain gauges on the rail head outer edge SKR for receiving horizontal displacements, on both sides of the rail web STL in the neutral fiber for receiving Graionsverursachten longitudinal stresses, and at the two outer edges of the rail foot SFR Incorporation of horizontal displacements appropriate.
  • the measured signals are evaluated in an electronic evaluation device, not shown, according to predetermined programs, wherein a continuous signal evaluation is performed by NEN the measurement data are approximated in a non-linear parameter variation with problem-adapted Ansatzfunktio-. This will continue to update the discrete data in the time and distance domain.
  • the forces are calculated as a dynamic signal when crossing an axis over the entire measuring range.
  • the mean value of the ballast stiffness can be specified. For sure- Relevant decisions are thus based on an objective and timely basis.
  • the system is redundant because it includes a metering and evaluation process secured by at least two different single measurement systems.
  • High-frequency simulation support for an elastic track and wheelset model also makes an adaptive system possible. In the context of the invention, clear and reproducible measurement results are possible even at wheel spacings> 0, 7 m.

Abstract

The invention relates to a method for determining the risk of derailment of railway vehicles, using a measuring section that consists of a row of measuring elements which are attached to the rails (S) and sense force effects and send corresponding electrical signals to an electronic signal evaluation device, signals being derived from measuring elements that are attached to the outer edge of the rail head (SKR) and to both edges of the rail flange (SFR), said signals indicating the movement of the rails in the horizontal direction, measuring elements on both sides of the web (STL) of the rail sensing the longitudinal stress on the rail and a measuring element (SFM) which supports the rail flange sensing horizontal and vertical forces which are applied to the rail and travel in a horizontal direction according to the point of contact of the wheel, a continuous array of information then being generated in the evaluation device from the transmitted signals which shows the instabilities and rail displacement forces.

Description

Verfahren und Vorrichtung zur Erfassung der Entgleisungsgefahr von Schienenfahrzeugen Method and device for detecting the derailment risk of rail vehicles
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erfassung der Entgleisungsgefahr von Schienenfahrzeugen.The invention relates to a method and a device for detecting the derailment risk of rail vehicles.
Ein kosteneffizienter und sicherer Bahnbetrieb ist nur durch genaue Kenntnis des Zustandes von Gleis und Fahrzeug möglich. Die Beurteilung der Fahrsicherheit spielt hierbei eine zentrale Rolle. Aus dem Fahrzeugverhalten können der resultierende Ressourcenverbrauch und Veränderungen am Oberbau abgeleitet werden. Es sind ortsfeste Meßstrecken zur Erfassung von Schienenbelastungen bekannt, die eine Wägestrecke in einem Gleisabschnitt umfassen. Die Schienen stützen sich auf Wägezellen ab, die z.B. in Wägeschwellen eingebaut sind, welche so ausgelegt sind, daß sie für Biegemomente und Querkräfte unempfindlich sind.A cost-efficient and safe railway operation is only possible by accurate knowledge of the condition of track and vehicle. The assessment of driving safety plays a key role here. From the vehicle behavior, the resulting resource consumption and changes to the superstructure can be derived. Fixed measuring sections for detecting rail loads are known, which comprise a weighing section in a track section. The rails are based on load cells, e.g. are installed in weighing sleepers, which are designed so that they are insensitive to bending moments and shear forces.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der einleitend angegebenen Art zu schaffen, mit denen auch Entgleisungsrisikofaktoren mit Hilfe einer ortsfesten Meßstelle zuverlässig erfaßt und ausgewertet werden können .The invention has for its object to provide a method and an apparatus of the type described in the introduction, with which also derailment risk factors can be reliably detected and evaluated by means of a fixed measuring point.
Ein erfindungsgemäßes Verfahren zur Erfassung der Ent- gleisungsgefahr mit Hilfe einer Meßstrecke aus einer Reihe von an den Schienen angebrachten Meßelementen, welche Krafteinwirkungen aufnehmen und entsprechende elektrische Signale einer elektronischen Signalauswerteeinrichtung zuführen, zeichnet sich dadurch aus, daß von am Schienenkopfaußenrand und auf beiden Schienenfußrändern angebrachten Meßelementen Signale abgeleitet werden, welche die Bewegung der Schiene in der Horizontalrichtung angeben, daß Meßelemente auf beiden Seiten des Schienensteges Schienenlängsspannungen aufnehmen, daß von einem den Schienenfuß abstützenden Meßelement auf die Schiene aufgebrachte, entsprechend dem RadaufStandspunkt in horizontaler Richtung wandernde Horizontal- und Vertikalkräfte aufgenommen werden, und daß sodann in der Auswerteeinrichtung aus den übermittelten Signalen ein kontinuierliches Informations- array gebildet wird, das Instabilitäten und Gleisverschiebungskräfte anzeigt .A method according to the invention for detecting the risk of derailment by means of a measuring section of a series of measuring elements attached to the rails and which apply force and supply corresponding electrical signals to an electronic signal evaluation device is characterized in that measuring elements are mounted on the rail head outer edge and on both rail foot rests Signals are derived, which indicate the movement of the rail in the horizontal direction, that measuring elements on both sides of the rail web record rail longitudinal stresses that from a rail foot supporting measuring element on the rail applied, in accordance with the RadaufStandspunkt in the horizontal direction migratory horizontal and vertical forces are absorbed, and that then in the evaluation of the transmitted signals, a continuous information array is formed indicating instabilities and track displacement forces.
Vorzugsweise wird ein Informationsarray aus mehreren Informationszellen derart gebildet, daß sich ihre Signalanteile stetig aneinanderfügen. Gegenstand der Erfindung ist auch eine Vorrichtung zur Durchführung des Verfahrens, mit einer Meßstrecke aus einer Reihe von an den Schienen angebrachten Meßelementen und einer mit diesen verbundenen elektronischen Signalauswerteeinrichtung, dadurch gekennzeichnet, daß die Meßelemente am Schienen- kopfaußenrand, an beiden Schienenfußaußenrändern und auf beiden Seiten des Schienensteges in dessen neutralen Faser angebracht und als Dehnungsmeßstreifen ausgebildet sind, welche Horizontalverschiebungen und Schienenlängsspannungen aufnehmen, und daß der Schienenfuß von einem Meßelement abgestützt ist, welches die Horizontal- und Vertikalkräfte in einem in horizontaler Richtung wandernden RadaufStandspunkt aufnimmt.Preferably, an information array is formed from a plurality of information cells such that their signal components are continuously connected to one another. The invention also relates to an apparatus for carrying out the method, comprising a measuring section of a series of attached to the rails and measuring elements connected to these electronic Signalauswerteeinrichtung, characterized in that the measuring elements on the rail head outer edge, on both Schienenfußaußenrändern and on both sides the rail web are mounted in its neutral fiber and are designed as strain gauges which absorb horizontal displacements and rail longitudinal stresses, and that the rail foot is supported by a measuring element which receives the horizontal and vertical forces in a horizontally migrating RadaufStandspunkt.
Im Rahmen der Erfindung werden zweckmäßig als Meßelemente Dehnungsmeßstreifen aufgebracht. Dabei können am Schienensteg in der neutralen Faser Dehnungsmeßstreifen unter einem negati- ven und einem positiven 45° -Winkel zur neutralen Faser aufgebracht sein.In the context of the invention strain gauges are expediently applied as measuring elements. Strain gauges can be applied to the rail web in the neutral fiber at a negative and a positive 45 ° angle to the neutral fiber.
Gemäß einem weiteren Merkmal der Erfindung ist vorgesehen, daß das den Schienenfuß abstützende Meßelement mindestens einen balkenförmigen Krafteinleitungsteil, der mit dem Schie- nenfuß verbindbar ist, und mindestens einen balkenförmigen Kraftausleitungsteil aufweist, der mit einer Schwelle verbindbar ist, wobei diese Teile parallel und horizontal übereinander angeordnet sind, und daß zwischen den Kraftein- und Kraft- ausleitungsteilen mindestens ein Meßsenkungspaar an mindestens einem Verformungskörper vorgesehen ist, wobei der Krafteinleitungsteil durch einen horizontalen Querspalt vom Kraftauslei- tungsteil beabstandet ist und beide Teile seitlich mit je einem zumindest teilweise vertikal ausgerichteten Verformungs- körper verbunden sind, in denen vertikal beabstandet mindestens je zwei Meßsenkungspaare vorgesehen sind, wobei das obere Meßsenkungspaar zur Erfassung der horizontalen und das untere Meßsenkungspaar zur Erfassung der Vertikalkräfte vorgesehen ist. Ein Ausführungsbeispiel der Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnungen näher erläutert. Es zeigen: Die Fig. Ia und Ib jeweils einen schematischen Querschnitt durch ein den zugehörigen Schienenfuß abstützendes Meßelement gemäß der Erfindung samt Meßanzeigediagramm, wobei unterschiedliche Krafteinleitungsfälle dargestellt sind, Fig. 2 eine schematische Teildarstellung der Schienenmeßstrecke, Fig. 3a eine schematische perspektivische Teildarstellung einer Schiene mit den an dieser aufgebrachten Meßelementen, und Fig. 3b ein Kräftediagramm. Fig. 1 zeigt im Schnitt ein unterhalb der Schiene S angeordnetes Y/Q-Kraftmeßelement, das es ermöglicht, Kräfte in Y und Q-Richtung aufzuzeichnen, die von einem Rad stammen und über die Schiene S eingeleitet werden. Der Fuß des Meßelementes entspricht im Bereich der Schienenbefestigung beispiels- weise exakt jenem eines „UIC-60" Schienenquerschnittes. Zur Befestigung des Meßelementes an der Schiene werden Standard- Schienenbefestigungselemente (Spannklemme, elastische Zwischenlage, Winkelführungsplatte) einer Stahltrogschwelle oder eines Adapters in fester Fahrbahn verwendet . Das den Schienenfuß abstützende Meßelement weist mindestens einen balkenförmigen Krafteinleitungsteil, der mit dem Schienenfuß verbindbar ist, und mindestens einen balkenförmigen Kraftausleitungsteil auf, der mit einer Schwelle verbindbar ist. Diese Teile sind parallel und horizontal übereinander angeordnet. Zwischen dem Krafteinleitungsteil- und dem Kraft- ausleitungsteil ist mindestens ein Meßsenkungspaar an mindestens einem Verformungskörper vorgesehen. Der Krafteinleitungsteil ist durch einen horizontalen Querspalt vom Kraftaus- leitungsteil beabstandet, und beide Teile sind seitlich mit je einem zumindest teilweise vertikal ausgerichteten Verformungskörper verbunden, in dem vertikal beabstandet mindestens je zwei Meßsenkungspaare vorgesehen sind. Das obere Meßsenkungspaar ist zur Erfassung der horizontalen und das untere Meßsen- kungspaar zur Erfassung der Vertikalkräfte vorgesehen.According to a further feature of the invention, it is provided that the measuring element supporting the rail foot has at least one bar-shaped force introduction part, which can be connected to the rail foot, and at least one bar-shaped force discharge part, which can be connected to a threshold, these parts being parallel and horizontal one above the other are arranged, and that between the force input and Kraftausleitungsteilen at least one Meßsenkungspaar at least a deformation body is provided, wherein the force introduction member is spaced by a horizontal transverse gap from Kraftauslei- tion part and both parts are laterally connected to each at least one vertically oriented deformation body in which vertically spaced at least two Meßsenkungspaare are provided, the upper Meßsenkungspaar is provided for detecting the horizontal and the lower Meßsenkungspaar for detecting the vertical forces. An embodiment of the invention will be explained in more detail with reference to the drawings. 1 a and 1b each show a schematic cross section through a measuring element supporting the associated rail foot according to the invention, including a measuring display diagram showing different force application cases, FIG. 2 shows a schematic partial representation of the rail measuring path, FIG. 3 a shows a schematic perspective partial representation of a rail with the applied thereto measuring elements, and Fig. 3b is a force diagram. Fig. 1 shows in section a arranged below the rail S Y / Q-force measuring element, which makes it possible to record forces in the Y and Q direction, which originate from a wheel and are introduced via the rail S. For example, the foot of the measuring element corresponds exactly to that of a "UIC-60" rail cross-section.To fasten the measuring element to the rail, standard rail fastening elements (tension clamp, elastic intermediate layer, angled guide plate) of a steel trough sleeper or a fixed track adapter are used The measuring element supporting the rail foot has at least one beam-shaped force introduction part, which can be connected to the rail foot, and at least one beam-shaped force extraction part, which can be connected to a threshold arranged. At least one pair of countersinks is provided on at least one deformation element between the force introduction part and the force output part. The force introduction part is spaced from the force output part by a horizontal cross gap, and both parts are laterally connected to an at least partially vertically oriented deformation body, in which at least two pairs of counter sinks are provided vertically spaced apart. The upper Meßsenkungspaar is provided for detecting the horizontal and the lower Meßs- kungspaar for detecting the vertical forces.
Im Betrieb wandert der Angriffspunkt der Q-Kraft infolge Bewegungen des Rades R z.B. um +• 10 mm in Y-Richtung. Im Falle der Fig. Ia erfolgte die Q-Krafteinleitung mittig, im Falle der Fig. Ib erfolgte eine Verschiebung des Kraftangriffspunk- tes in horizontaler Richtung um etwa 10 mm. Die nicht zentrische Krafteinleitung ergibt im Meßdiagramm einen Spannungsanstieg des lastseitigen unteren Meßsenkungskörpers um etwa 0,2 mV/V.In operation, the point of application of the Q-force due to movements of the wheel R moves e.g. by + • 10 mm in Y direction. In the case of FIG. 1 a, the introduction of Q force occurred centrally, in the case of FIG. 1 b a displacement of the force application point in the horizontal direction by about 10 mm. The non-centric introduction of force results in the measurement diagram, a voltage increase of the load-side lower Meßsenkungskörper by about 0.2 mV / V.
Nach den Fig. 3a und 3b sind in der Meßstrecke außerdem an den Schienen S Dehnungsmeßstreifen am Schienenkopfaußenrand SKR zur Aufnahme von Horizontalverschiebungen, auf beiden Seiten des Schienensteges STL in der neutralen Faser zur Aufnahme von traktionsverursachten LängsSpannungen, und an den beiden Außenrändern des Schienenfußes SFR zur Aufnahme von Horizon- talverschiebungen angebracht. Die gemessenen Signale werden in einer nicht gezeigten elektronischen Auswerteeinrichtung nach vorbestimmten Programmen ausgewertet, wobei eine kontinuierliche Signalauswertung vorgenommen wird, indem in einer nichtlinearen Parametervariation mit problemangepaßten Ansatzfunktio- nen die Meßdaten approximiert werden. Damit werden die diskreten Daten im Zeit- und Wegbereich kontinuisiert . Die Kräfte werden als dynamisches Signal bei der Überfahrt einer Achse über den gesamten Meßbereich errechnet. Zusätzlich kann der Mittelwert der Bettungssteifigkeit angegeben werden. Sicher- heitsrelevante Entscheidungen werden so auf eine obj ektive und zeitnahe Basis gestellt . Das System ist redundant , weil es ein durch mindestens zwei unterschiedliche Einzelmeßsysteme abgesichertes Meß- und Auswerteverfahren umfaßt . Durch Hochfre- quenz-Simulationsunterstützung eines elastischen Fahrweg- und Radsatzmodells wird außerdem ein lernfähiges System ermöglicht . Im Rahmen der Erfindung sind eindeutige und reproduzierbare Meßergebnisse bereits bei Radabständen > 0 , 7 m möglich . According to Figs. 3a and 3b are in the test section also on the rails S strain gauges on the rail head outer edge SKR for receiving horizontal displacements, on both sides of the rail web STL in the neutral fiber for receiving traktionsverursachten longitudinal stresses, and at the two outer edges of the rail foot SFR Incorporation of horizontal displacements appropriate. The measured signals are evaluated in an electronic evaluation device, not shown, according to predetermined programs, wherein a continuous signal evaluation is performed by NEN the measurement data are approximated in a non-linear parameter variation with problem-adapted Ansatzfunktio-. This will continue to update the discrete data in the time and distance domain. The forces are calculated as a dynamic signal when crossing an axis over the entire measuring range. In addition, the mean value of the ballast stiffness can be specified. For sure- Relevant decisions are thus based on an objective and timely basis. The system is redundant because it includes a metering and evaluation process secured by at least two different single measurement systems. High-frequency simulation support for an elastic track and wheelset model also makes an adaptive system possible. In the context of the invention, clear and reproducible measurement results are possible even at wheel spacings> 0, 7 m.

Claims

Ansprüche : Claims :
1. Verfahren zur Erfassung der Entgleisungsgefahr von Schienenfahrzeugen mit Hilfe einer Meßstrecke aus einer Reihe von an den Schienen angebrachten Meßelementen, welche Kraft- einwirkungen aufnehmen und entsprechende elektrische Signale einer elektronischen Signalauswerteeinrichtung zuführen, dadurch gekennzeichnet, daß von am Schienenkopfaußenrand und auf beiden Schienenfußrändern angebrachten Meßelementen Signale abgeleitet werden, welche die Bewegung der Schiene in der Horizontalrichtung angeben, daß Meßelemente auf beiden Seiten des Schienensteges SchienenlängsSpannungen aufnehmen, daß von einem den Schienenfuß abstützenden Meßelement auf die Schiene aufgebrachte, entsprechend dem RadaufStandspunkt in horizontaler Richtung wandernde Horizontal- und Vertikalkräfte aufgenommen werden, und daß sodann in der Auswerteeinrichtung aus den übermittelten Signalen ein kontinuierliches Informationsarray gebildet wird, das Instabilitäten und Gleisverschie- bungskräfte anzeigt.1. A method for detecting the risk of derailment of rail vehicles by means of a measuring section of a series of mounted on the rails measuring elements which absorb force and perform corresponding electrical signals of an electronic Signalauswerteeinrichtung, characterized in that of mounted on the rail head outer edge and on both Schienenfußrändern measuring elements Signals are derived, which indicate the movement of the rail in the horizontal direction, that measuring elements on both sides of the rail web record rail longitudinal stresses that are absorbed by a rail foot supporting the measuring element applied to the rail, according to the RadaufStandspunkt in the horizontal direction migrating horizontal and vertical forces and that then in the evaluation device from the transmitted signals, a continuous information array is formed, which indicate instabilities and Gleisverschieb- forces igt.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Informationsarray aus mehreren Informationszellen gebildet wird, derart, daß sich ihre Signalanteile stetig aneinanderfügen, wobei vorzugsweise die Schieneneinsenkungen in re- levante Anteile zerlegt und in der unmittelbaren Umgebung des RadaufStandspunktes berücksichtigt werden.2. The method according to claim 1, characterized in that an information array is formed of a plurality of information cells, such that their signal components continuously adjoin one another, wherein preferably the rail depressions are decomposed into relevant proportions and taken into account in the immediate vicinity of RadaufStandspunktes.
3. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3, mit einer Meßstrecke aus einer Reihe von an den Schienen angebrachten Meßelementen und einer mit diesen verbundenen elektronischen Signalauswerteeinrichtung, dadurch gekennzeichnet, daß die Meßelemente am Schienenkopfaußenrand, an beiden Schienenfußaußenrändern und auf beiden Seiten des Schienensteges in dessen neutralen Faser angebracht und als Dehnungsmeßstreifen ausgebildet sind, welche Horizon- talVerschiebungen und Schienenlängsspannungen aufnehmen, und daß der Schienenfuß von einem Meßelement abgestützt ist, welches die Horizontal- und Vertikalkräfte in einem in horizontaler Richtung wandernden RadaufStandspunkt aufnimmt. 3. A device for carrying out the method according to any one of claims 1 to 3, comprising a measuring section of a series of attached to the rails and a measuring elements connected thereto electronic Signalauswerteeinrichtung, characterized in that the measuring elements on the rail head outer edge, on both Schienenfußaußenrändern and on both Sides of the rail web are mounted in its neutral fiber and designed as strain gauges, which Horizon valley displacements and rail longitudinal stresses record, and that the rail foot is supported by a measuring element which receives the horizontal and vertical forces in a wandering in the horizontal direction RadaufStandspunkt.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß als Meßelemente Dehnungsmeßstreifen auf den Schienenkopf, den Schienensteg und den Schienenfuß aufgebracht sind.4. Apparatus according to claim 3, characterized in that are applied as measuring elements strain gauges on the rail head, the rail web and the rail.
5. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß am Schienensteg in der neutralen Faser Dehnungsmeßstreifen unter einem negativen und einem positiven 45° -Winkel zur neutralen Faser aufgebracht sind.5. Apparatus according to claim 3, characterized in that the rail web in the neutral fiber strain gauges are applied at a negative and a positive 45 ° angle to the neutral fiber.
6. Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß das den Schienenfuß abstützende Meßelement mindestens einen balkenförmigen Krafteinleitungsteil, der mit dem Schienenfuß verbindbar ist, und mindestens einen balkenförmigen Kraftausleitungsteil aufweist, der mit einer Schwelle verbindbar ist, wobei diese Teile parallel und horizontal übereinander angeordnet sind, und daß zwischen den Kraftein- und Kraftausleitungsteilen mindestens ein Meßsen- kungspaar an mindestens einem Verformungskörper vorgesehen ist, wobei der Krafteinleitungsteil durch einen horizontalen Querspalt vom Kraftausleitungsteil beabstandet ist und beide Teile seitlich mit je einem zumindest teilweise vertikal ausgerichteten Verformungskörper verbunden sind, in denen verti- kal beabstandet mindestens je zwei Meßsenkungspaare vorgesehen sind, wobei das obere Meßsenkungspaar zur Erfassung der horizontalen und das untere Meßsenkungspaar zur Erfassung der Vertikalkräfte vorgesehen ist . 6. Device according to one of claims 3 to 5, characterized in that the rail foot supporting measuring element at least one bar-shaped force introduction part, which is connectable to the rail foot, and at least one beam-shaped Kraftausleitungsteil, which is connectable to a threshold, said parts in parallel and horizontally one above the other, and that between the force input and Kraftausleitungsteilen at least one Meßungs- kung pair is provided on at least one deformation body, wherein the force introduction member is spaced by a horizontal cross gap from Kraftausleitungsteil and both parts laterally connected to each one at least partially vertically oriented deformation body are in which verti cal spaced at least two Meßsenkungspaare are provided, the upper Meßsenkungspaar provided for detecting the horizontal and the lower Meßsenkungspaar for detecting the vertical forces is.
EP06741044A 2005-07-18 2006-06-19 Method and device for determining the risk of derailment of railway vehicles Active EP1904356B1 (en)

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Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0120505A AT502214B1 (en) 2005-07-18 2005-07-18 METHOD AND DEVICE FOR DETECTING THE RISK OF DANGER OF RAIL VEHICLES
PCT/AT2006/000248 WO2007009132A2 (en) 2005-07-18 2006-06-19 Method and device for determining the risk of derailment of railway vehicles

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EP1904356A2 true EP1904356A2 (en) 2008-04-02
EP1904356B1 EP1904356B1 (en) 2012-11-21

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AT (1) AT502214B1 (en)
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Also Published As

Publication number Publication date
AT502214B1 (en) 2008-12-15
AT502214A1 (en) 2007-02-15
PL1904356T3 (en) 2013-03-29
WO2007009132A2 (en) 2007-01-25
WO2007009132A3 (en) 2007-09-13
EP1904356B1 (en) 2012-11-21

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