2930 試験台での実軌道波加振による鉄道車両の同定実験(J15-1 交通機械のダイナミクス(1),ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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For development of a new type of a railway bogie, a designer provides parameters such as stiffness rates of springs and dumping coefficients of dumpers, for ride comfort and safety. However, we occasionally detect that the performance of the new railway bogie do not meet the requirements as designed. We presume that such as bogie frame stiffness and spring or dumper bracket stiffness influences the arranged parameters. Therefore, it is essential to re-identify the parameters including the bogie frame stiffness and the bracket stiffness and modify those parameters. Previously, we took bogies and a vehicle to a test stand at the premises of RTRI to inspect the performance and identify the parameters with sin waves, which have only one frequency. However, it requires much time and expenses. Then, we aspire to identify the stiffness rates of springs and the dumping coefficients of dumpers including the bogie frame stiffness and the bracket stiffness for the running test. For the first step of a study, we propose a way to identify the parameters with track irregularity wave on the test stand, and demonstrate the way clearly and satisfactorily.
2008-08-02