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    Improving wagon running safety - predicting wagon instability during normal freight operations

    Access Status
    Fulltext not available
    Authors
    Xia, F.
    Cole, C.
    Wolfs, Peter
    Date
    2006
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Xia, Fujie and Cole, Colin and Wolfs, Peter. 2006. Improving wagon running safety - predicting wagon instability during normal freight operations, in Conference on Railway Engineering 2006, pp. 307-314. Melbourne Victoria: RTSA Railway Technical Society of Australasia.
    Source Title
    Rail Achieving Growth: Conference Proceedings - Conference on Railway Engineering
    Source Conference
    Conference on Railway Engineering 2006
    ISBN
    0858258374
    Faculty
    Department of Electrical and Computer Engineering
    School of Engineering
    Faculty of Science and Engineering
    URI
    http://hdl.handle.net/20.500.11937/40645
    Collection
    • Curtin Research Publications
    Abstract

    The Cooperate Research Centre for Railway Engineering and Technologies has a research project focused upon developing low cost vehicle ride quality detection systems. This paper presents the development of a device which gives indications of wheel unloading and LIV offering both warnings and the opportunity for prevention of derailment. A vehicle based instability prediction system has been developed using measured accelerations of the wagon body as inputs to an inverse wagon model. Numerical integration of the system is then used to get the kinematic quantities of wheelsets. The vertical wheel-rail interface force can be determined by the sum of Hertzian spring and damping forces between wheel and rail. The lateral wheel rail force is then determined by Kalker's theory. A laboratory test was designed to compare the results between inverse model and measurement. Results show the estimated results match well with the results from laboratory test. Additional validation was also achieved by comparison with wagon simulations developed using VAMPIRE.

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