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www.muellerbbm-rail.com
Müller-BBM Rail Technologies GmbH develops and produces
measuring and monitoring systems and software tools specifically
tailored for the needs of railway operators, manufacturers and au-
thorities. The applications of our systems focus on vehicle and track
maintenance and acoustics.
Our measuring and monitoring systems are used at all types of rail
systems as railways, metros or tramways. The development of our
systems is based on the longtime experience and know-how com-
ing from decades of practical work and research in the fields of
railway noise and maintenance.
We offer measurements with our products and also rent our meas-
uring and monitoring systems. We provide trainings for our prod-
ucts and organize conferences in the related railway sectors. As a
partner for technology development and research we support tech-
nical progress with our contributions in standardization committees.
Müller-BBM Rail Technologies GmbH is part of the Müller-BBM
group, one of the leading companies in the field of acoustics.
High-precision monitoring system for wheel treads
Müller-BBM Rail Technologies GmbH
Robert-Koch-Strasse 11
82152 Planegg / Munich
Germany
Phone + 49 89 85602-0
Fax + 49 89 85602-111
info@mbbm-rail.com
www.muellerbbm-rail.com
Wheel Monitoring Systemfor railway, tram and subway
General specifications
Wheel flats, material fractures amplitudes > 0.1mm @ width > 4 cm
Wheel polygons amplitudes > 0.05 mm
Vehicle speed accuracy 3%
Vehicle identification Detection rate up to 100%
Ambient temperature range Regular operation from –10°C to 40°C
Relative humidity 80 % (up to 31°C), linearly decreasing to 50 % at 40°C, non-condensing
Dimensions switchboard (width x height x length)
630 mm x 780 mm x 380 mm
Weight switchboard About 25 kg
Power supply 230 V AC
Current consumption Typically <200 W
Housing material Aluminium (coated)
Vehicle identification system RFID (alternative systems can be incorporated on demand)
WMS- Sensor (width x height x length)
35 mm x 50 mm x 110 mm
Compatible vignole rail profiles S 41/10; S 41/14; S 49; S 54; S 64; UIC 54 E; UIC 54; UIC 60; R 65
Compatible embedded rail profiles Ri 59; Ri 60
Track gauge range 870 mm – 1524 mm
Rail condition Smooth well maintained rail sur-face without defects, welds or joints
Track Straight track, 50 m distance to switches and screwed joints.
Inclination No significant inclination
Speed Constant speed at min. speed 30 km/h (15 km/h with modifications to the track), no maximum speed
Data connection minimum 1 mbit/s
Measuring software m|track
User system requirements
Analysis PC e. g. Notebook, Tablet-PC
Operating system Windows XP, Windows 7 / 8 / 10
Internet connection Required, minimum 1 mbit/s
Memory (RAM) min. 1 GB (recommended)
CPU clock frequency min. 1 GHz (recommended)
Software specifications
Analysis software WMS Info
Functionality Easy and precise indicators representing the wheel damage Recommendations for condition-based maintenance Recommendations for predictive maintenance.
Analysis results Lists of vehicles with most significant defects in analysed period, Analysis period selectable Lists of most recent measurements
Time chart Every vehicle (displaying all results for all wheels from one vehicle)
Indicators Wheel polygon indicator (adjustable) Wheel flat indicator ( adjustable)
Maintenance events Marking wheel maintenance events
Vehicles Adding new vehicles
Languages German, English, Finish. Further languages on request.
Export Export of the graphs (.emf format) Export of the data (ASCII-format).
Colour scale Editable
WMS sensor (glued onto rail) microphone (optional)
Product description
The WMS is designed to monitor wheel tread damages as polygons
and flats and their evolution. It grants:
earlydetectionofwheelpolygons
earlydetectionofwheelflats
increasedsafety
noiseandvibrationreduction
reductionofcomplaintsfromresidents
conditionbasedmaintenance
costsavingfromlessmaintenanceandhigherruntime
ofwheelsets
vehicleinformation(ID,speed,etc.)
The WMS identifies the passing vehicle, analyses the wheel tread
quality, stores the results to a databank and provides reliable, fast
and plain results on
wheelconditionswithinthemonitoredrailfleet,
spreadofwheeldamages
thedevelopmentofwheeldamages
The large datasets collected by the WMS support statistical analyses
on identifying root mechanisms. The following parameters can be
measured by the Wheel Monitoring System:
wheeltreaddefects(e.g.flats,etc.[EN15313])
wheeltreadpolygonization[UICB169/DT405],[EN15313]
The most important characteristics of the WMS are:
fullyautomatedoperation
highmeasurementaccuracywithhighrepeatability
fastandeasyinstallationofthesystem
vehicleidentificationmodule
noisemeasuringandmonitoringmodule
graphicaluserinterfaceprovidedbythesoftware
simpleandeasytouse
productisguaranteedtobesupportedforatleast10years
Technical principle
Quick, robust and non-invasive installation in the track. Specifically
designed WMS sensors measure the wheel tread condition of each
passing wheel (i.e. detecting flats, polygons). A vehicle identification
system registers the vehicle and its numbers. Optional microphones
capture the noise emissions (i.e. detecting malfunctioning aggregates).
Precise and comprehensible results: WMS processes all wheels and
yields indicators for polygonisation and flats. The displayed indica-
tion is proportional to the severity of the damage / polygonisation
and may additionally be adjusted to the customer’s needs.
Option: Mobile Wheel Monitoring System (WMS)
The mobile WMS temporarily offers the benefits of a fully automated
WMS at an attractive price and an even reduced installation time. It
is best used to quickly assess the quality of wheel tread conditions
across the entire fleet.
Wheel Monitoring System WMS, type TMS-01-WS
Standards[ISO/IEC 17025] ..................... General requirements for the competence of testing and calibration laboratories, 2017[EN 15610] .............................. Railway applications – Acoustics – Rail and wheel roughness measurement related to rolling noise generation[EN ISO 266] ........................... Acoustic – Preferred frequencies, 1997-08[EN ISO 3095:2013] ............ Acoustics – Railway applications – Measurement of noise emitted by railbound vehicles, 2014-07[EN 15313] .............................. Railway applications – In-service wheelset operation requirements – In-service and off-vehicle wheelset maintenance, 2016[UIC B 169/DT 405] ............. Catalogue of defects on wheels / axles /wheelsets. Part 1: introductions, terminology, classification of defects, types of defects on wheelsets
1
2
4
3 5
1 Measuring spot• automatic measurement of all
passing vehicles• vehicle identification
2 Measuring and analysis unit• Data analysis• Data compression
3 Remote transmission of data• sends data to database
4 Database• stores all data
5 Analysis at any workplace PC• identification of wheel defects• condition based mainenance
Wheel condition indicator
Good condition Small defect significant defect
Wheel flat time chart for all wheels of a a vehicle with 8 axles (red= left side, black = right side)
Wheel overturning/replacement
verification by m | wheel measurements
Significant wheel flats on axle 3 Overturning removed the wheel flat.
Numbe
r of
M
easu
rem
ents
Perio
d
AxleRigh
t / lef
t
Car I
DIn
dicato
r
Wheel overturning/replacement
Detection of wheel damages in an early state
Polygonisation mainly at right side of vehicle (wheels left side moderately affected):Overturning removed the polygons. Beginning polygonisation at wheel 6 (about 1 month after overturning)
Polygonisation time chart for all wheels of a vehicle with 8 axles (red= left side, black = right side)
m|wheel measurement of polygonised wheel (exemplary)
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