Technologies for rail-bound traffic and transport in the 21st century


Prüfung von Eisenbahnachsen mit Längsbohrung in der leichten und schweren Instandhaltung
© Photo Fraunhofer IZFP / Uwe Bellhäuser

The business unit "railway" is characterized by the world-wide upgrading of the highspeed network at concurrently ingreased maintenance standards. Thus, major activities of the business unit concern the development and marketing of automated inspection and monitoring systems for wheel set components in the frame of the light and heavy maintenance of railway operators.

Hardware and Software Components of the Ultrasonic Inspection System RAWIS: Production-Integrated Inspection of Railroad Wheels

© Photo Rosen Group

RAWIS Inspection System

High resolution at concurrently high inspection velocity by use of phased array technique and hardware-near data processing

Fully automated hundred percent inspection of wheel rim and wheel hub within a single turn of the wheel

Use of smart evaluation algorithms for automated assessment of the inspection results

Modular system design for use in maintenance inspections at low modification time and effort

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AUROPA: Automated Wheel Tread Inspection System

„Inspection of the tread condition of an entire train in roll-over operation

Application of EMAT probes immediately in the track

Couplant-free ultrasound inspection enabling measurements even at low ambient temperatures

Increased measurement reliability by redundant probes

Cost-effective realization of the inspections including automated recording of the inspection results in a database

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Mobile Inspection System for Hollow Rail Axles

© Photo Fraunhofer IZFP / Uwe Bellhäuser

Mobile Ultrasonic Inspection System

Rotating ultrasound test probe

Suitable for 30-90 mm bore diameters

Hand-operated, compact test cart

Mechanized inspection system provides visual display of test results

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UER III: System for Ultrasonic Stress Measurement in the Rim of Railroad Wheels

© Photo Fraunhofer IZFP / Uwe Bellhäuser

UER III: System for Ultrasonic Stress Measurement in the rim of Railroad Wheels

Heavy/operational maintenance

Wheel production (according to DIN EN13262) / wheel development

Digital data transmission between manipulator and operating unit

New miniaturized in-house developed ultrasound electronics for manipulator frontend

Frontend solution in order to minimize electromagnetic interferences

Software with various options for documentation

3 alternative setups: Stationary pillar, stationary swivel arm, mobile workshop trolley

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Automated Thermography Inspection System for Railway Wheels

© Photo Fraunhofer IZFP

Robot-assisted surface crack inspection in railroad wheels of high-speed trains by inductively excited thermography

Substitution of conventional magnetic particle inspection: Large-scale, fast, and imaging method

Nondestructive and automatable, can be integrated into existing processes

Objective/automatic defect detection even of covered (near-surface) defects by intelligent assessment algorithms

Contactless and couplant-free

Quantitative crack depth assessment