3507 交流電磁場測定法を用いた台車枠探傷技術の開発(SS2-4 車両技術(1),SS2 メンテナンス,コストダウン,J-Rail 2006)

概要

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At present, railroad enterprise detects surface crack of bogie-frame by magnetic particle testing mainly. We develop the new non-destructive inspection technology "ACFM (Alternating Current-Field Measurement) method", which can detect the crack without tearing off the paint. This technology is crack decision calculation which based on signal data which inspected surface of bogie-frame with inspector's probe, and the inspection procedure reflected this technology. The calculation used theory of vector-product. We manufacture a device as an experiment, and confirm the crack detection performance, the removal effect of false signal-data, and so on. If this is put to practical use, there is an advantage such as 1: Inspector's burden in health is reduced, 2: Inspector's skill shouldn't be necessary for judgment of crack or false, 3: Result of the inspection can be managed by electronic data, in non-destructive inspection of bogie-frame.
一般社団法人日本機械学会の論文
2006-12-13