For a train running at high speeds in a tunnel, the car body vibration considerably increases due to the aerodynamic force generated around the car body, thereby deteriorating riding comfort. To improve riding comfort of a train running at high speeds in a tunnel, the effects of stiffness
and damping between adjoining cars are examined. In case the restriction between cars is too large, the curving performance may deteriorate around sharp curves. In this paper, analytical models of the aerodynamic force and a train are developed, and the riding comfort at high speed in a tunnel
and the curving performance around a sharp curve are simulated. As a result, a solution, which improves the riding comfort at high speeds without increasing the wheel lateral force around sharp curves, is found by increasing inter-vehicle damping in the longitudinal and lateral directions.
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restriction between cars;
Document Type: Research Article
Department of Mechanical and Production Engineering, Niigata University, Ikarashi, Nishi-ku, Niigata, Japan
Central Japan Railway Company, Ohyama, Komaki, Aichi, Japan
Shimaya, Konohana-ku Osaka, Osaka Prefecture, Sumitomo Metal Industries, Japan
Publication date: 2008-09-01