Journal
MEASUREMENT
Volume 183, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2021.109765
Keywords
Track surveying; Instrumented railway vehicle; Scaled track; Track irregularities; Experimental validation; Automated recording vehicle
Funding
- Department of Economy, Science, Enterprise and University of the Andalusian Regional Government, in Spain, under the PAIDI 2020 program [P18-RT-1772]
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This paper presents the design, construction, and experimental validation of a scaled railway vehicle for automated and quick surveying of experimental scaled track geometry. The measurements of the automated recording vehicle (ARV) are validated by comparison with a precise but slow manual measuring method (MMM). The results show a good agreement between the ARV measurements and the MMM results.
This paper presents the design, construction and experimental validation of a scaled railway vehicle for the automated and quick survey of the geometry of an experimental scaled track. The method, that can be extended to full scale tracks, validates the measurements of the automated recording vehicle (ARV) by comparison with respect to a precise but slow manual measuring method (MMM). The two-axle vehicle, which is powered by a brushless DC motor, has its leading axle instrumented with a LVDT, an inclinometer, a reflector and a precision encoder. These sensors, together with the help of a total station, allow the measurement of the scaled track geometry and its irregularities following an optimization procedure that first determines the ideal track centreline. The ARV has been tested on a scaled track and its measurements are validated with the MMM results showing a good agreement between both approaches.
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