Wayside Train Measurement with ARGOS® from HBK

ARGOS® RBM Straight (Running Behaviour Measurement for straight lines, unstable vehicle run) continuously measures the horizontal and vertical forces to monitor the risk of derailment and detects hunting (instability, sine run). On straight tracks, some vehicles tend towards undulating running which can lead to instability.

• Train weight: 1% to 100 km/h 2% to 200 km/h
• Vehicle weight: 1.5% to 100 km/h 2% to 200 km/h
• Horizontal forces: 3% to 100 km/h 5% to 200 km/h
• Striking angle:  ±20 mrad
• Can be combined with OOR, WILD, LONG, PROFIL

ARGOS® RBM Curve (Running Behaviour Measurement for curves, horizontal forces) continuously measures the horizontal and vertical on curves (lateral wheel force, track displacement force).

The task on curves, in addition to derailment safety, is to avoid unnecessarily high driving forces to reduce wear and stress on the superstructure.

• Train weight: 1% to 100 km/h 2% to 200 km/h
• Vehicle weight: 1.5% to 100 km/h 2% to 200 km/h
• Horizontal forces: 3% to 100 km/h 5% to 200 km/h
• Striking angle: ±20 mrad
• Can be combined with WILD, LONG

ARGOS® OOR Stand-alone (wheel Out-of-Roundness) delivers reliable wheel shape irregularities with peak accuracy. It is available in a stand-alone version or as an extension module for other ARGOS® products. Its exact qualification and classification of wheel shape irregularities are the basis for modern predictive and descriptive wheel maintenance and unfailing infrastructure asset protection concepts.

• 50 km/h to 250 km/h
• Resolution better than 0.01 mm, measurement repeatability 0.05 mm as trend function, 0.1 mm as individual measurement
• Flat point: 30 mm or greater
• Polygonization order: 2nd to 32nd
• Can be combined with PROFIL

ARGOS® DYN (Dynamic force and WILD – Wheel Impact Load Detection) can measure continuous dynamic forces exerted by the vehicle on the superstructure. The outstanding feature is its real continuous force measurement over the whole measurement rail section including the sleeper areas. This allows, as a side effect, the determination of the formation reaction coefficient.

• Continuous dynamic force
• Can be combined with WIM, RBM Straight

ARGOS® OOR (wheel Out-of-Roundness) measures the deviation from an ideally round wheel with an unreached accuracy. The measurement covers the entire circumference of the wheel in the area where the wheel has contact with the track. The measurement system is designed so that at least two overruns are measured for each wheel. The progression of delta R over the circumference of the wheel is used by the system to derive and quantify types of wheel shape irregularities.

• 50 km/h to 250 km/h
• Resolution better than 0.01 mm, measurement repeatability 0.05 mm as trend function, 0.1 mm as individual measurement
• Flat point: 30 mm or greater
• Polygonization order: 2nd to 32nd
• Can be combined with WIM, RBM Straight

The cross-wheel profile measurement system is a real-time solution that uses a combination of line laser and a high-resolution, high-speed camera for automatic cross-wheel profile measurement at line speeds. The data is used for trend analyses and predictive damage identification and maintenance. The measuring equipment is certified according to ISO 17025.

• Can be combined with WIM, RBM Straight, OOR Stand-alone