Recent advances in the fundamental understanding of railway vehicle dynamics

Hans True

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The topic of this article is the calculation of the critical speed for railway vehicles. It is emphasised that it is misleading to formulate the mathematical problem as a stability problem. It must correctly be formulated as a problem of existence of coexisting solutions to the full non-linear dynamical problem. The lowest speed at which there exist more critical speed in road tests. A couple of examples show applications of the method to various dynamical models of railway vehicles. Freight wagons are treated in the end of the article because the dry friction damping with stick-slip and end stops in the suspensions demand the use of the newest numerical solvers and great care in their application to the dynamical problem in order to obtain reliable results.
    Original languageEnglish
    JournalInternational Journal of Vehicle Design
    Volume40
    Issue number1-3
    Pages (from-to)251-264
    ISSN0143-3369
    Publication statusPublished - 2006

    Keywords

    • non-linear dynamics
    • railway vehicles

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