Advertisement
Published in:
2019 | OriginalPaper | Chapter
Estimation of Railway Track Longitudinal Profile Using Vehicle-Based Inertial Measurements
Authors : Paraic Quirke, Eugene J. OBrien, Cathal Bowe, Abdollah Malekjafarian, Daniel Cantero
Published in: Sustainable Solutions for Railways and Transportation Engineering
Publisher: Springer International Publishing
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
This paper presents an optimization algorithm for finding the railway track longitudinal profile from the inertial response of a train bogie. The track profile is that which creates a numerical response from a numerical train-track interaction model that best fits the measured response. An Irish Rail InterCity train was instrumented to capture in-service vehicle responses to validate the proposed algorithm. Several train passes in the Dublin-Belfast service in Ireland over a period of 4 weeks are used. Vertical acceleration and angular velocity at the train bogie were measured. The real longitudinal profile of a section of this line was surveyed by traditional means, for reference. The vehicle properties were available from a calibration study. The track profile is estimated using the proposed method which matches quite well with the surveyed profile. The reproducibility of the method is assessed.