Wheelsets of railway vehicles are exposed to constant wear during operation. This is checked regularly; the respective maintenance measures for the wheelsets are usually executed at regular intervals.
A further optimisation of maintenance prolongs the running times of the wheelsets and also reduces the costs for the operators. For the analysis of wear factors, it is necessary to trace the history of wheelsets throughout their service life according to their characteristic data. These analyses provide the basis for identifying and tapping previously unused potential in the maintenance of wheelsets. With the ARGUS II® wheelset diagnosis system and the U2000-150 underfloor wheelset lathe, from our NSH subsidiary Hegenscheidt-MFD GmbH, is available a complete wheelset management tool.
Wheelset management system for metro companies; Graphics: Hegenscheidt-MFD GmbH
The maintenance relevant data of the wheelsets such as concentricity, profile, diameter and incipent cracks are measured with automatic measuing systems, which are installed stationary in the track. These provide intermediate values that log the wear in chronological order. The geometry of the wheelset is measured before and after re-profiling on the wheelset processing machines. Thus, information about the runway and the new condition of the wheels is provided and the results are protocolled.
Data Management and Customer Benefits
The central administration is located in a database system that manages, among other things, all master data and model series as well as the configuration of the trains within the entire fleet and has interfaces to the measuring, testing and processing stations. Based on the measured values, the actual wear of the wheelsets can be analyzed, the expected mileage and the wear limit infractions can be predicted as well as a maintenance plan can be provided for the entire life cycle of a wheelset. The reports are shown in tabular und graphical form and key figure reports are generated for decision-makers, which contain all relevant performance indicators. In addition, the so-called »bad guy« lists are kept for oversized wear patterns.
The system leads to considerable cost savings through optimized wheelset maintenance plans and thus improves fleet availability.
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