Automated processing of railway track deflection signals obtained from velocity and acceleration measurements.

ABSTRACT: Measurements of low-frequency vibration are increasingly being used to assess the condition and performance of railway tracks. Displacements used to characterise the track movement under train loads are commonly obtained from velocity or acceleration signals. Artefacts from signal processing, which lead to a shift in the datum associated with the at-rest position, as well as variability between successive wheels, mean that interpreting measurements is non-trivial. As a result, deflections are often interpreted by inspection rather than following an algorithmic or statistical process. This can limit the amount of data that can be usefully analysed in practice, militating against widespread or long-term use of track vibration measurements for condition or performance monitoring purposes. Thi

SUBMITTER: Milne D 

PROVIDER: S-EPMC6319540 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature