Evaluating Degradation at Railway Crossings Using Axle Box Acceleration Measurements
AbstractIn this paper, we investigate the capability of an axle box acceleration (ABA) system to evaluate the degradation at railway crossings. For this purpose, information from multiple sensors, namely, ABA signals, 3D rail profiles, Global Positioning System (GPS) and tachometer recordings, was collected from both nominal and degraded crossings. By proper correlation of the gathered data, an algorithm was proposed to distinguish the characteristic ABA related to the degradation and then to evaluate the health condition of crossings. The algorithm was then demonstrated on a crossing with an unknown degradation status, and its capability was verified via a 3D profile measurement. The results indicate that the ABA system is effective at monitoring two types of degradations. The first type is uneven deformation between the wing rail and crossing nose, corresponding to characteristic ABA frequencies of 230–350 and 460–650 Hz. The second type is local irregularity in the longitudinal slope of the crossing nose, corresponding to characteristic ABA frequencies of 460–650 Hz. The types and severity of the degradation can be evaluated by the spatial distribution and energy concentration of the characteristic frequencies of the ABA signals. View Full-Text
- Supplementary File 1:
Supplementary (ZIP, 259 KB)
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Wei, Z.; Núñez, A.; Li, Z.; Dollevoet, R. Evaluating Degradation at Railway Crossings Using Axle Box Acceleration Measurements. Sensors 2017, 17, 2236.
Wei Z, Núñez A, Li Z, Dollevoet R. Evaluating Degradation at Railway Crossings Using Axle Box Acceleration Measurements. Sensors. 2017; 17(10):2236.Chicago/Turabian Style
Wei, Zilong; Núñez, Alfredo; Li, Zili; Dollevoet, Rolf. 2017. "Evaluating Degradation at Railway Crossings Using Axle Box Acceleration Measurements." Sensors 17, no. 10: 2236.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.