This article presents a dynamic computational model for analysing the correlation between rails natural frequencies and the longitudinal stress generated by temperature variation. The model includes a rail, sleepers, and the foundation. Some factors such as the rail section profile, rail wear, and the stiffness of fasteners are also considered. Based on the model, numerical computational analyses are performed. The relationship between the rails longitudinal temperature force and the natural frequency is also studied. The influences of parameters such as the wear of the rail, unsupported distance of adjoining sleepers, fastener stiffness, rail types, and foundation stiffness are investigated. A field experiment is also presented that was performed to investigate the relationship between the rail's dynamic characteristics and the longitudinal stress generated by temperature variation with various unsupported sleeper spacings. The results of analysis and in-field measurements are compared.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A dynamic analysis of a continuous welded rail track under a longitudinal stress caused by temperature changes


    Contributors:
    Luo, Y. (author) / Li, L. (author) / Yin, H. (author)


    Publication date :

    2010


    Size :

    11 Seiten, 13 Bilder, 5 Tabellen, 16 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English