Monitoring the technical condition of the railway track using the method of continuous recording of dynamic processes occurring due to the interaction between rolling stock and railway track

Abstract

Objective: To develop the method to monitor the technical condition of the railway track. Me-thods: A strain-gauge wheel pair is used for continuous recording of vertical and lateral interaction forces in a dynamic wheel–rail system. Results: Stability margin factors of a wagon relative to de-railment have been determined and the defective (prone to derailment) sections of a railway track have been identified with the exact identification of their location (GPS coordinates) on the map using navigation devices. Practical importance: The developed monitoring method makes it possi-ble to promptly re¬gister and eliminate railway track defects

Novel ‘Closed’-System Approach for Monitoring the Technical Condition of Railway Tracks

“…The contemporary approach to the assessment of changes in the technical condition of the railway track under the action of rolling stock during the entire service life includes assessment of the following [26][27][28][29][30][31]: of 'closed' measurement systems based on the prediction of track and rolling stock behavior is proposed. The last section presents the outcomes attained in the article and the direction of further development of efforts in this area.…”

A new way to determine the indicators of vertical and horizontal of a subway car

“…Most strain gauge wheelsets measure the force by the "point" method only at the moment when the strain gauge is near the point of contact of the wheel with the rail and do not provide a continuous process of measuring dynamic forces [16,17]. In addition, when using strain gauge wheelsets, it is difficult to test cars with worn roll profiles, which is important for assessing the safety of cars in operation.…”