The Proceedings of International Symposium on Seed-up and Service Technology for Railway and Maglev Systems : STECH
Online ISSN : 2424-3167
セッションID: 352559
会議情報
352559 PLANNING RAIL GRINDING USING CRACK GROWTH PREDICTIONS(Infrastructure,Technical Session)
Paul HydeDavid I Fletcher
著者情報
会議録・要旨集 フリー

詳細
抄録
Rail grinding is a widely used rail industry technique for maintaining the quality and safety of railway track. Rail grinding can be used to restore the profile of the rails, remove surface plastic damage and remove or reduce in size very early stage surface breaking rolling contact fatigue cracks. This paper focuses on the use of rail grinding to extend the safe life of a rail that would otherwise be limited by rolling contact fatigue (RCF) defects. The optimum grinding strategy for a variety of conditions has been investigated using a model that predicts the growth of surface breaking cracks in rails loaded by rail vehicle wheel contacts, taking into account natural wear of the rail and rail grinding. It was found that a grinding strategy which removes incipient cracks in a specific period of time without being over-conservative and producing excessive material loss must take into account all traffic using the line, not just the traffic perceived to be most damaging. A mixed traffic case is modelled, revealing the potential for interaction between different vehicle types in determining maintenance requirements.
著者関連情報
© 2009 一般社団法人 日本機械学会
前の記事 次の記事
feedback
Top