3501 レールきしみ割れ発生原因の実態調査と解析結果(SS2-1 軌道技術(1),SS2 メンテナンス,コストダウン,J-Rail 2006)

概要

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Head checks generally occur on gauge corners of high rails for mild curved track, and many rail renewals were unavoidable in recent years. In order to clarify the initial and progressive condition of the head checks, the authors investigated the effects of the lateral force, the contact geometry, and the gauge face wear on the head checks by actual field measured data. In addition, the contact stress of wheel and rail were analyzed by using elastoplastic Finite Element models, and the contact behavior related to the head checks under various track/vehicle conditions were also discussed. As a result, the head checks consequently appeared in some specific wear range of 0.9-1.8mm/100 MGT for the heat treatment rail of HH340.
社団法人日本機械学会の論文
2006-12-13