The evaluation of the stability of continuous welded rail (CWR) is a major area of research activity. In this paper, a method is proposed that uses finite element analysis and discrete short-time Fourier transform methods to evaluate the global and local stabilities of in-service CWR on the Baotou-Xi'an line in the People's Republic of China. A local stability evaluation criterion for the rail and a global standard deviation for the thermal stress fluctuation in the CWR are proposed. The global stability of a CWR that consists of two rails is taken to be that of the rail with the largest thermal stress fluctuation, whereas for a single rail, the fluctuation state of the local zone with the largest thermal stress fluctuation is used as the criterion.
Research on global and local stability of continuous welded rail based on finite element analysis and discrete short-time Fourier transform
2016
Aufsatz (Zeitschrift)
Englisch
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