Aerodynamic control of high-speed train

Susumu Masunaga, Hideo Watanabe, Yasuaki Kohama

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Speeding up of a high-speed train has been tryed by means of reducing its weight, streamlining its shape, and decreasing its frontal project area. But the reduction of weight decreases the adhesion force of driving wheels to rails. So, too much reduction in weight causes slipping of the driving wheels, and the maximum speed of the train is limitted to some extent. In this research we try to use the aerodynamic down-force, which is utilized widely for a racing car, to compensate the decrease in the frictional force between the driving wheels and the ground surface caused by reducing the car weight. Wind tunnel test with using a head-coach model is performed. The wind tunnel is provided with a moving-belt equipment. The down force is created in the space between the bottom surfaces of bogies and the moving belt, and is controlled by changing the shapes of the bottom surface of bogies. Lift and drag of the model, as well as velocity distributions under the model, are measured.

    Original languageEnglish
    Pages (from-to)969-976
    Number of pages8
    JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
    Volume67
    Issue number656
    DOIs
    Publication statusPublished - 2001 Apr

    Keywords

    • Bogie
    • Down force
    • Drag
    • Head coach configurating
    • High speed train
    • Wind tunnel test

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanical Engineering

    Fingerprint Dive into the research topics of 'Aerodynamic control of high-speed train'. Together they form a unique fingerprint.

    Cite this