WO2010057609A1 - Système pour l'analyse de l'état de l'organe de roulement de véhicules ferroviaires - Google Patents

Système pour l'analyse de l'état de l'organe de roulement de véhicules ferroviaires Download PDF

Info

Publication number
WO2010057609A1
WO2010057609A1 PCT/EP2009/008151 EP2009008151W WO2010057609A1 WO 2010057609 A1 WO2010057609 A1 WO 2010057609A1 EP 2009008151 W EP2009008151 W EP 2009008151W WO 2010057609 A1 WO2010057609 A1 WO 2010057609A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
measuring
sound
measuring devices
force
Prior art date
Application number
PCT/EP2009/008151
Other languages
German (de)
English (en)
Inventor
Peter Groll
Ralph Müller
Original Assignee
Schenck Process 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 Schenck Process Gmbh filed Critical Schenck Process Gmbh
Priority to EP09752754.3A priority Critical patent/EP2359104B1/fr
Priority to US13/125,840 priority patent/US9234786B2/en
Publication of WO2010057609A1 publication Critical patent/WO2010057609A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
    • G01G19/045—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles for weighing railway vehicles in motion
    • G01G19/047—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles for weighing railway vehicles in motion using electrical weight-sensitive devices

Definitions

  • the invention relates generally to the technical field of rail vehicles and to a system for analyzing the state of the chassis of rail vehicles.
  • the invention relates to a system and a method for analyzing the state of the chassis of rail vehicles by detecting loads that occur in wheel / rail contact in rail vehicles.
  • the known hot roller detection systems are usually based on the principle of infrared measurement technology and can thus provide information on possible bearing damage only via a temperature difference measurement.
  • the hit rate and the reliability of exact statements of diagnostic equipment on the condition of the chassis of rail vehicles are of crucial importance.
  • the invention is therefore based on the object to provide a system and a method that allows a better diagnosis with respect to the condition of the chassis of a rail vehicle.
  • the present invention solves this problem by a system for analyzing the running state of rail vehicles, wherein a number of force measuring devices for detecting the force acting on the rail measuring distance forces and / or moments is arranged on a rail measuring path, characterized in that the system further comprises a number of sound measuring devices to Detection of the sound waves that arise when crossing the rail measuring section by the rail vehicle.
  • a method for analyzing the chassis state of rail vehicles by means of a rail measuring section comprising the following steps:
  • Such simultaneously determined measuring signals can then be correlated or superimposed, so that from the same over-experience of the rail measuring section by a
  • Rail vehicle simultaneously detected force signals and sound signals with immediate temporal Correlation related to each other and can be evaluated in parallel.
  • By evaluating the mutually correlated force-measuring signals and sound-measuring signals conclusions can be drawn about the state of the chassis of the rail vehicle. Further particular embodiments and embodiments of the invention are specified in the subclaims.
  • the present invention thus provides a system and a method for measuring loads during
  • the present invention provides a diagnostic system for analyzing the condition of a chassis of rail vehicles, in particular their wheel bearings and wheel geometries, with which the loads and noises occurring by the driving of a rail vehicle can be detected and evaluated to the effect that more reliable conclusions about the condition of the chassis of the rail vehicle, such as the wheel bearing and the wheel geometry, can be pulled.
  • the present invention better imperfection statements can be made with respect to wheel roundnesses or bearing damage to the chassis of a rail vehicle.
  • the present invention thus provides an optimization for monitoring the functionality of the chassis of a rail vehicle, including the wheels and wheel bearings, represents. This can be made direct statements on damaged areas or geometry problems on wheels or possible bearing damage to the chassis of rail vehicles.
  • the present invention in addition to the force and / or moments introduced into the rails by a rail vehicle when driving on the track, the resulting noise is also taken into account by detecting them and processing them in a corresponding electronic evaluation unit.
  • the present invention makes use of acoustic metrology and combines it with force measurement techniques to provide more reliable results in diagnosing the chassis of rail vehicles with hot runner locators.
  • the present invention therefore comprises the following essential aspects:
  • ⁇ in the area of at least one unwound wheel circumference these physical quantities are recorded synchronously and their correlation is used to optimize the statement regarding imperfections.
  • the acoustically detected or monitored areas may in particular the area of the contact geometry, ie in contact between the wheel and rail, and / or the Achsc. Include wheel bearing.
  • the processing of the acoustic and force measurement signals may include the correlation of the acoustic signals to the and force measurement signals. Additionally or alternatively, the processing of the acoustic measurement signals and force measurement signals may also include the correlation of various acoustic measurement signals recorded by different microphones. Furthermore, the processing of the acoustic and force measuring signals may also include the correlation of various force measuring signals recorded by different force measuring devices.
  • a number of sound measuring devices are designed as a directional microphone having a specific directional characteristic.
  • the directional microphone for example, equipped with an interference tube, which primarily receives the frontal incoming sound and thereby gives the microphone a directional characteristic.
  • sound from other directions is attenuated more strongly and detected to a lesser extent than the sound arriving from the front from the longitudinal direction of the interference tube.
  • the sound measuring devices can advantageously several sound measuring devices are arranged side by side in the longitudinal direction of the rail measuring section to the sound during the Traversing the rail measuring section by the rail vehicle to detect several times at different points of the rail measuring section.
  • the sound measuring devices may be arranged next to the rail measuring section at a certain angle with respect to the longitudinal direction of the rail measuring section to detect the sound waves propagating at a right angle from the rail measuring section.
  • At least one measuring device for detecting the acoustic sound waves can be aligned transversely to the longitudinal direction of the rail measuring section in order to detect those sound waves which propagate almost parallel to the longitudinal direction of the rail measuring section or at an oblique angle from the rail measuring section.
  • at least a first directional microphone is aligned transversely to the orientation of a second directional microphone.
  • At least one sound-measuring device is arranged at the level of the wheel / rail contact and at least one sound-measuring device is arranged at the level of a wheel bearing of the rail vehicle.
  • the directional microphones may be aligned be that they detect sound waves when crossing the rail measuring track by the rail vehicle
  • Rail vehicle and the rail measuring line and / or ⁇ arise at the wheel bearing of the rail vehicle. This facilitates the later evaluation of the sound waves with regard to an analysis of the state of the wheel bearings and the wheel geometries on the chassis of the rail vehicle.
  • structure-borne sound microphones can be used directly on the rail of the rail measuring section for noise emissions in the wheel / rail contact area.
  • acceleration sensors can be provided which detect the acceleration occurring in one or both rails when passing over the rail measuring section by the rail vehicle.
  • the force measuring devices are used to detect the forces and / or moments that are introduced during the passage of the rail vehicle on the rail measuring section in the track body. It is particularly advantageous if a number of force-measuring devices are arranged under a rail foot and / or between the rail foot and the rail bed of the rail measuring section, since at this point the forces and moments acting in the rail can be reliably detected.
  • Force measuring devices can be provided for detecting the forces or moments acting on the rail in the vertical direction and / or force measuring devices for Detecting the acting in the horizontal direction of the rail forces or moments be provided.
  • the accuracy of the measurement can be assisted if at least one force measuring device for detecting the forces and / or moments acting on the rail are arranged at a number of adjacent thresholds of the rail measuring section.
  • the force measuring devices and sound measuring devices convert the detected forces and / or moments or the detected sound waves into electrical signals which are forwarded via corresponding lines to an evaluation unit.
  • the evaluation unit comprises electronic means which are preferably designed such that they can correlate, superimpose and evaluate the electrical measurement signals supplied by the force-measuring devices and the sound-measuring devices in order to draw conclusions about the condition of the chassis of the rail vehicle. It is also possible here to implement compensation algorithms for avoiding false alarms. In this case, such compensation algorithms can be applied to the electrical measurement signals supplied by the force-measuring devices and the sound-measuring devices in such a way that false alarms or misinterpretations of the measurement signals are avoided.
  • Figure 1 shows a schematic sectional view of a A system according to an embodiment of the present invention for analyzing the chassis of rail vehicles by measuring forces and / or sound waves generated by a moving rail vehicle via a rail;
  • Figure 2 shows a schematic representation of the structure of a system according to another embodiment of the present invention for analyzing the chassis of rail vehicles by measuring forces and / or sound waves generated by a moving rail vehicle via a rail;
  • FIG. 3 is a schematic representation of a defective rail vehicle wheel and the acoustic and force measurement signals detected by a measurement system according to the present invention.
  • Figure 1 shows a sectional view through a schematic structure of a system according to an embodiment of the present invention for analyzing the state of the chassis of rail vehicles by measuring forces and / or sound waves generated by a moving rail vehicle via a rail.
  • the system according to the invention comprises a rail measuring section, with a track body, of which a rail 1 is shown in hatched cross-section.
  • a rail 1 On the rail 1 is the wheel 3 of a rail vehicle (not shown), which rolls when traveling the rail vehicle perpendicular to the paper plane on the rail 1.
  • the wheel 3 rotates about its axis 4, which at the same time the wheel bearing schematically represents.
  • the rail has a rail foot 2, which has a
  • Force measuring device 5 is mounted on a threshold or a rail bed 6.
  • Force measuring device 5 all forces and moments due to
  • Loads can be transmitted by a traveling rail vehicle.
  • the force-measuring device 5 may be, for example, a load cell, as are basically known from the document DE 39 37 318 A1.
  • a load cell deformation parts are reversibly deformed under the action of the force to be measured, thereby changing the electrical resistance of attached to the deformation strain gauges, which can be detected as a measured value. This measured value can then be forwarded as an electrical signal to a corresponding evaluation unit.
  • the forces and moments acting on the rail 1 or in the rail foot 2 are measured by the load cell 5 and converted into electrical signals, which are forwarded via a signal line 8 to an evaluation unit 9.
  • the system according to the invention further comprises a number of sound-measuring devices 7, which detect the sound waves which arise when the rail passes through the rail vehicle.
  • sound measuring devices 7, which are mechanically decoupled from the rail measuring section directional microphones can be used with a specific directional characteristic, as indicated in Figure 1 with a specific orientation 10 and by corresponding directional cone 11.
  • the directional microphone 7 includes, for example, an interference tube, which primarily receives the sound arriving from the front and thus detects the sound from other directions to a lesser extent than the sound arriving from the front in the longitudinal direction of the interference tube.
  • an interference tube which primarily receives the sound arriving from the front and thus detects the sound from other directions to a lesser extent than the sound arriving from the front in the longitudinal direction of the interference tube.
  • two directional microphones 7 are shown, of which the lower directional microphone 7 is located at the level of the wheel / rail contact and the upper directional microphone 7 is arranged at the level of a wheel bearing 4 of the rail vehicle.
  • the upper directional microphone 7 is aligned so that it detects the resulting sound waves in the wheel bearing 4, as shown by the orientation 10 of the upper directional microphone 7 in the direction of the wheel bearing 4.
  • the lower directional microphone 7 is oriented to detect the sound waves generated at the contact between the wheel 3 and the rail 1, as indicated by the orientation 10 of the lower directional microphone 7 in the direction of the wheel / rail contact.
  • structure-borne sound microphones or accelerometers may also be used here, which are fastened directly to the rail.
  • the sound waves generated during travel of the rail vehicle in the wheel bearing 4 can be detected simultaneously and largely separated from the sound waves generated at the contact between the wheel 3 and the rail 1.
  • the electrical measuring signals generated by the sound-measuring devices 7 are also forwarded via appropriate signal lines 8 to the evaluation unit 9.
  • the evaluation unit 9 comprises electronic means, which are preferably designed so that they can correlate and evaluate the electrical measurement signals with one another in order to draw conclusions about the condition of the chassis of the rail vehicle. In this case, due to the separate measurement of the sound waves generated at the wheel / rail contact and the sound waves produced in the wheel bearing 4, differentiated statements about the condition of the wheel bearing 4 or about the geometry of the wheel 3 can be made.
  • Figure 2 shows a schematic representation of the structure of a system according to another embodiment of the present invention for analyzing the state of the chassis by measuring forces and / or acoustic signals generated by a moving rail vehicle via a rail 1.
  • a rail 1 is shown in plan view this time, which is supported on a plurality of sleepers a-g.
  • the accuracy of the measurement can be assisted if at a number of adjacent thresholds a-g the
  • Rail measuring track in each case at least one
  • Force measuring device 5 for detecting the on the rail acting forces and / or moments is arranged. Separate force measuring devices for detecting the forces or moments acting on the rail 1 in the vertical direction can also be provided on the rail 1 and / or force measuring devices can be provided for detecting the forces or moments acting on the rail 1 in the horizontal direction.
  • the measurement signals supplied by the force-measuring devices 5 are correlated and / or superimposed or compensated for with the measurement signals supplied by the sound-measuring devices 7 in order to support the reliability of the analysis results more exact statements with respect to wheel geometry, wheel rotations, imperfections,
  • two sound measuring devices or directional microphones 7 are also arranged side by side in the longitudinal direction of the rail measuring section to acoustically detect the sound development when driving over the rail measuring section by the rail vehicle from two different directions.
  • the sound measuring devices or directional microphones 7 are arranged next to the rail measuring section at a certain angle with respect to the longitudinal direction of the rail measuring section.
  • the directional microphone 7 shown in the right-hand part of FIG. 2 is aligned at a right angle to the longitudinal direction of the rail measuring path to such sound waves to capture, which propagate at right angles from the rail measuring section.
  • the directional microphone 7 shown in the left part of Figure 2 is aligned transversely to the longitudinal direction of the rail measuring path to detect those sound waves that propagate almost parallel to the longitudinal direction of the rail measuring path or only at an oblique angle from the rail measuring section. In this way, a directional microphone 7 is aligned transversely to the orientation of the other directional microphone 7.
  • the electrical measuring signals generated by the force measuring devices (not shown in FIG. 2) and by the sound measuring devices 7 are in turn relayed via connected signal lines 8 to the evaluation unit 9, where the signals are correlated and / or superimposed by the electronic means of the evaluation unit 9 that, for example, bearing damage or unevenness in the running area of the wheel can be detected.
  • the correlation of two acoustic measurement signals, • which were taken from different directions, lead to further detailed knowledge of the detected damage pattern and be used for a more reliable differentiation between wheel or wheel bearing damage.
  • FIG. 3 shows a schematic illustration of a damaged rail vehicle wheel and a schematic illustration of the acoustic measurement signals and force measurement signals detected by means of a measurement system according to the present invention.
  • the wheel 3 of a rail vehicle is shown, which rolls in the direction of the rotation arrow on a rail 1.
  • the wheel 3 has at its radially outer running region an imperfection or a flat spot 12, which is to be detected by the analysis system according to the invention.
  • the flat 12 rolls over the rail 1, it generates corresponding forces and / or moments in the rail 1, which are detected by force measuring devices under the rail 1.
  • the sound waves are detected by sound measuring devices.
  • a signal curve of the force measuring signal 13 and a signal curve of the acoustic measuring signal 14 are shown schematically.
  • the signal curves 13 and 14 it can be seen that in each case in the middle of the signal, there is a larger rash that has arisen when rolling the flat 12 of the wheel 3 on the rail 1. Temporally before and behind this larger rash only smaller amplitudes are detected, which reflect a normal rolling of the wheel 3 on the rail 1.
  • the measurement signals generated by the force measuring devices 5 and sound measuring devices 7 are forwarded to the evaluation unit, the electronic means includes, to correlate, superimpose or compensate and evaluate the electrical measurement signals with each other and to draw conclusions about the condition of the chassis of the rail vehicle. Due to the separate measurement of the forces introduced into the rail 1 by means of force measuring devices 5 and the simultaneous measurement of the sound waves generated at the wheel / rail contact and the sound waves generated in the wheel bearing by means of sound measuring device 7 differentiated statements about the state of the wheel bearing 4 or on the geometry hit the wheel 3.
  • the system according to the invention with the measuring section can be integrated in a real track body for rail vehicles.
  • the running rail vehicles could be checked during operation, without affecting or interrupting the driving in traffic on the condition of their landing gear.
  • the railcar in question could soon be serviced without the disruption of operation or even critical chassis condition occurring.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

L'invention porte sur un système et un procédé autorisant un meilleur diagnostic de l'organe de roulement de véhicules ferroviaires, où l'on a disposé sur une ligne de mesure sur les rails un certain nombre de dispositifs dynamométriques pour déterminer les forces et/ou moments agissant sur la ligne de mesure, le système comportant en outre un certain nombre de dispositifs de mesure des sondes, pour déterminer les ondes acoustiques qui se produisent quand le véhicule ferroviaire passe sur la ligne de mesure. Ainsi, la présente invention met à disposition un système de diagnostic pour analyser l'état en particulier des paliers et géométries des roues, système dans lequel on peut déterminer et évaluer les forces et ondes acoustiques apparaissant lors du passage d'un véhicule ferroviaire sur la ligne, de telle sorte que l'on puisse en tirer des conclusions plus fiables concernant l'état de l'organe de roulement du véhicule ferroviaire.
PCT/EP2009/008151 2008-11-19 2009-11-17 Système pour l'analyse de l'état de l'organe de roulement de véhicules ferroviaires WO2010057609A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09752754.3A EP2359104B1 (fr) 2008-11-19 2009-11-17 Système pour l'analyse de l'état de l'organe de roulement de véhicules ferroviaires
US13/125,840 US9234786B2 (en) 2008-11-19 2009-11-17 System for analysis of the condition of the running gear of rail vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008058244.1 2008-11-19
DE102008058244A DE102008058244A1 (de) 2008-11-19 2008-11-19 System zur Analyse des Fahrwerkzustands bei Schienenfahrzeugen

Publications (1)

Publication Number Publication Date
WO2010057609A1 true WO2010057609A1 (fr) 2010-05-27

Family

ID=41416051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/008151 WO2010057609A1 (fr) 2008-11-19 2009-11-17 Système pour l'analyse de l'état de l'organe de roulement de véhicules ferroviaires

Country Status (4)

Country Link
US (1) US9234786B2 (fr)
EP (1) EP2359104B1 (fr)
DE (1) DE102008058244A1 (fr)
WO (1) WO2010057609A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011018608B4 (de) 2011-04-21 2021-04-01 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren und Vorrichtung zur Ermittlung eines Verschleißwertes eines Schienenfahrzeuges
US9618335B2 (en) 2015-01-19 2017-04-11 Tetra Tech, Inc. Light emission power control apparatus and method
CA2892952C (fr) 2015-01-19 2019-10-15 Tetra Tech, Inc. Enveloppe protectrice
CA2893007C (fr) 2015-01-19 2020-04-28 Tetra Tech, Inc. Appareil de synchronisation de capteur et methode
US10349491B2 (en) 2015-01-19 2019-07-09 Tetra Tech, Inc. Light emission power control apparatus and method
CA2892885C (fr) 2015-02-20 2020-07-28 Tetra Tech, Inc. Systeme et methode d'evaluation de piste 3d
US10625760B2 (en) 2018-06-01 2020-04-21 Tetra Tech, Inc. Apparatus and method for calculating wooden crosstie plate cut measurements and rail seat abrasion measurements based on rail head height
US10730538B2 (en) 2018-06-01 2020-08-04 Tetra Tech, Inc. Apparatus and method for calculating plate cut and rail seat abrasion based on measurements only of rail head elevation and crosstie surface elevation
US10807623B2 (en) 2018-06-01 2020-10-20 Tetra Tech, Inc. Apparatus and method for gathering data from sensors oriented at an oblique angle relative to a railway track
US11377130B2 (en) 2018-06-01 2022-07-05 Tetra Tech, Inc. Autonomous track assessment system
WO2020232443A1 (fr) 2019-05-16 2020-11-19 Tetra Tech, Inc. Système d'évaluation de voie ferrée autonome
CN110849643B (zh) * 2019-12-06 2020-11-24 温州国军机械有限公司 一种有利于模拟实时运行的铁路车轮检测装置
US11926351B2 (en) 2020-09-01 2024-03-12 Bnsf Railway Company Apparatus and method for wear detection of railroad vehicle wheels
CN112991577B (zh) * 2021-02-25 2022-08-02 成都运达科技股份有限公司 一种轨道车辆车轮多边形状态诊断系统
CN117141548B (zh) * 2023-10-30 2024-01-30 成都铁安科技有限责任公司 一种用于轮对踏面损伤检测的平动装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221301A (en) * 1988-07-30 1990-01-31 Rolls Royce Plc An acoustic emission load cell
DE3937318C1 (en) * 1989-11-09 1991-05-23 Carl Schenck Ag, 6100 Darmstadt, De Force measuring unit with two concentric deformation rings - having electromechanical strain gauges on surface providing electrical values
EP1847819A2 (fr) * 2006-04-05 2007-10-24 Schenck Process GmbH Section de mesure sur un rail

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103548A (en) * 1977-03-07 1978-08-01 Mcdonald Frank W Wheel-wear monitor
US4439342A (en) * 1979-07-23 1984-03-27 United Industries Corporation Aerosol preparation
US4843885A (en) * 1987-10-02 1989-07-04 Servo Corporation Of America Acoustic detection of bearing defects
DE4439342C2 (de) * 1994-11-04 1997-02-20 Deutsche Bahn Ag Anordnung zur Ermittlung unrunder Räder von Eisenbahnfahrzeugen
CA2212063A1 (fr) * 1997-08-29 1999-02-28 Robert Douglas Stephens Systeme de detection de vibrations, de localisation et d'alarme, permettant de stopper un train en cas de danger
DE19858937A1 (de) * 1998-12-08 2000-06-15 Gerd Klenke Verfahren und Einrichtung zum Überwachen des Schienenverkehrs
DE19913057A1 (de) * 1999-03-17 2000-09-21 Siemens Ag Verfahren zum Erkennen von auf einer Schiene vorbeilaufenden Rädern
US6405141B1 (en) * 2000-03-02 2002-06-11 Ensco, Inc. Dynamic track stiffness measurement system and method
DE10057740A1 (de) * 2000-11-16 2002-05-23 Siemens Ag Einrichtung zum Erkennen von Unregelmäßigkeiten an Eisenbahnrädern
DE10305470A1 (de) * 2003-02-13 2004-08-26 Schenck Process Gmbh Meßstrecke zur Erfassung unterschiedlicher physikalischer Größen schienengebundener Fahrzeuge
US6951132B2 (en) * 2003-06-27 2005-10-04 General Electric Company Rail and train monitoring system and method
PL1774275T3 (pl) * 2004-07-16 2011-07-29 Lynxrail Corp Urządzenie do detekcji kołysania i kąta natarcia zestawu kołowego pojazdu szynowego
US7564569B2 (en) * 2005-09-16 2009-07-21 International Electronic Machines Corp. Optical wheel evaluation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221301A (en) * 1988-07-30 1990-01-31 Rolls Royce Plc An acoustic emission load cell
DE3937318C1 (en) * 1989-11-09 1991-05-23 Carl Schenck Ag, 6100 Darmstadt, De Force measuring unit with two concentric deformation rings - having electromechanical strain gauges on surface providing electrical values
EP1847819A2 (fr) * 2006-04-05 2007-10-24 Schenck Process GmbH Section de mesure sur un rail

Also Published As

Publication number Publication date
EP2359104A1 (fr) 2011-08-24
US20110224863A1 (en) 2011-09-15
US9234786B2 (en) 2016-01-12
DE102008058244A1 (de) 2010-05-20
EP2359104B1 (fr) 2015-01-07

Similar Documents

Publication Publication Date Title
EP2359104B1 (fr) Système pour l'analyse de l'état de l'organe de roulement de véhicules ferroviaires
DE19826422C2 (de) Vorrichtung zur kontinuierlichen Kontrolle der Radsätze von Schienenfahrzeugen auf mechanische Defekte und fehlerhaften Radlauf, sowie Detektion von gefährlichen Fahrzuständen
DE102007024066B4 (de) Drehgestell eines Schienenfahrzeugs mit einer Vorrichtung zur Fehlerüberwachung von Fahrwerkskomponenten
DE102007024065B3 (de) Vorrichtung und Verfahren zur Fehlerüberwachung von Fahrwerkskomponenten von Schienenfahrzeugen
DE19852220C2 (de) Verfahren zur Erkennung von Schäden im Schienenverkehr
WO2000076828A1 (fr) Procede et dispositif pour la surveillance d'un vehicule ou d'une voie de circulation pendant la circulation de service du vehicule
EP1977950A2 (fr) Procédé destiné à l'évaluation en fonction de l'effet de la qualité de stockage d'une voie
DE10020519B4 (de) Verfahren zum Überwachen von Fahreigenschaften eines Schienenfahrzeuges
WO2006125595A1 (fr) Procede et dispositif pour eviter des effets non voulus au niveau de capteurs doubles
DE102008049224A1 (de) Verfahren und Vorrichtung zum Überprüfen mindestens eines Laufwerks eines auf einem Gleis fahrbaren Schienenfahrzeugs auf einen Defekt
DE10145433C2 (de) Verfahren und Vorrichtung zur Fehlerüberwachung von Komponenten von Schienenfahrzeugen
DE10062602B4 (de) Verfahren und Vorrichtung zum Überwachen des Fahrverhaltens von Schienenfahrzeugen und zur Diagnose von Komponenten von Schienenfahrzeugen
DE19852229C2 (de) Verfahren und Vorrichtung zur Aufdeckung von Schäden an Schienenfahrzeugen
WO2017197423A1 (fr) Procédé et dispositif de surveillance d'au moins un composant de voie posé dans la construction de chemin de fer
EP3464000B1 (fr) Procédé et dispositif de vérification automatique de freins d'un véhicule guidé
DE19908850A1 (de) Verfahren und Einrichtung zum Überwachen eines Fahrzeugs
WO2018104040A1 (fr) Procédé et dispositif destinés au diagnostic d'un aiguillage sous charge
DE19825594C2 (de) Verfahren und Vorrichtung zum Prüfen von Radreifen von Schienenfahrzeugen
DE19837554C2 (de) Elektronische Fahrwerk-Überwachungsanlage für Züge
DE10320342B3 (de) Verfahren zum Überwachen gegebenenfalls auch Vermessen der Unrundheit eines im Betrieb befindlichen, längs eines Schienenstranges abrollenden Rades, das am Drehgestell eines schienengebundenen Fahrzeuges angebracht ist
AT523862B1 (de) Vorrichtung und Verfahren zur Diagnose und Überwachung für Fahrzeuge
AT10052U1 (de) Messverfahren zur bestimmung von emissionen

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09752754

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 13125840

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2009752754

Country of ref document: EP