3406 独立成分分析法を用いた軌道高低狂い推定法(状態監視と検知,SS7:安全と防災,第18回交通・物流部門大会(TRANSLOG2009))

概要

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This research introduces a method to estimate vertical track irregularity from accelerations of the bogie using ICA (Independent Component Analysis) and examines the performance through the experiment using test track and an actual bogie. The authors propose to apply ICA to monitor the railway system. It is a method to identify the signal sources from the multi data sets of the mixed signals. The vertical accelerations of bogie frame at several points are measured, and the velocities and the displacements at those points are calculated by integrating and double integrating the measured accelerations, respectively. They are treated as parts of the observed data sets as well as the accelerations. By using ICA, the vibration of front and rear wheels are separated. From this result it is expected to separate some disturbance mixed to the track irregularity such as bias of wheels.
一般社団法人日本機械学会の論文
2009-12-02