Event info

[2017/5/10]The IMI Colloquium in May


Date: Wednesday, 10 May 2017 16:45 - 17:45

Place: IMI Auditorium (W1-D-413) (4F, West Zone 1, Kyushu University)

Speaker: Gaku EHARA, Ph.D. in Engineering, Manager
(Design and Development Division Track&Structures Dept. JRWest)

Title: Discovery of standing wave separation method inherent in railway track maintenance method and possibility for application to other engineering fields

Since ancient times, track maintenance work has used a method of measuring the deformation of track geometry with strings and calculating the displacement value for maintenance work.
Within this method, the existence of a special Fourier transform that separates arbitrary input data into a standing wave has become clear.
Based on this new finding, it became clear theoretically that the following advantages of the real track maintenance work can be obtained.
· Be able to derive the answer that guarantees the continuity of the track geometry without fail regardless of the measurement section.
· The influence of measurement error should concentrate 95% on the first to fifth standing waves.
· The components of the fluctuation (1/F^2 F:Frequency) remain in the track geometry after maintenance.
In addition, I would like to examine this possibility for applicability to other engineering fields.

IMI Colloquium Report

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