307 ARMAモデルを用いた鉄道車両の振動解析(鉄道車両のダイナミクス)(OS.2 交通輸送システム)

概要

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To improve the riding comfort of railway vehicle, it is important to investigate dynamic characteristics of car body. In this paper, the identification method based on ARMA model fitting is proposed. This method is appropriate to estimate modal parameters from time-limited random vibration data. This method was compared with FFT-based method based by conducting vibration test. It was understood that the ARMA method has the ability of substantially the same identificaton as taraditional mathod. Actual car bodies can be regarded as having multi-input and multi-output relationship. Therefore, the multivariate ARMA model is introduced for the analysis of running test. From the result, ARMA method is appropriate to the analysis of car body's elastic vibration.
一般社団法人日本機械学会の論文
2001-03-09