Research on abnormal detection of railway vehicles using traction device (2nd report)

Abstract

We have been studying and verifying the logic for detecting abnormal using physical quantities that act on the single link type traction device of the vehicle, with the aim of improving the performance and reducing costs of abnormal detection. In the previous report, we reported on determining the excess or deficiency of traction force during power running and braking using strain in the tensile and compressive direction, detecting the rotational velocity of the wheel set using frequency analysis, and detecting the bogie turning angular velocity using strain in the lateral bending direction. In this paper, we report on the detection of abnormal rotation of WN coupling and the detection of relative displacement between the car body and bogie using torsional strain.