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Track–Monitoring of Wheel–Rail–Systems
Author(s) -
Glösmann Philipp,
Kreuzer Edwin
Publication year - 2006
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200610133
Subject(s) - train , track (disk drive) , measure (data warehouse) , computer science , principal (computer security) , automotive engineering , transformation (genetics) , quality (philosophy) , engineering , real time computing , data mining , biochemistry , chemistry , philosophy , cartography , epistemology , gene , geography , operating system
Inspection and maintenance of railway networks is a complex and expensive task. Special measurement vehicles are used to record the geometrical properties of railway lines within required time intervals. Due to the extent of measurement data the quality of railway track is evaluated considering only a few parameters. Although safety and comfort of wheel–rail–systems depend on the dynamical behavior, current inspection vehicles are not equipped to measure dynamic properties. In this paper, we will discuss a novel approach to evaluate the quality of railway tracks based on wheel–rail dynamics: Wheelset dynamics of subway trains are analyzed by Karhunen–Loève Transformation to extract the principal dynamics from the collected measurement data. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)