为了探索这种活动机制，本文用基于非线性自激振动的指数自回归模型来研究这些特征。
To study this mechanism, we used the exponential autoregression model which is originated from non-linear auto-vibration.
按照振动驱动机制不同，节段模型试验方法可分为自由振动法和强迫振动法两大类。
According to different driving ways of vibration, the sectional model test methods can be classified into two major categories, i. e. free-vibration method and forced-vibration method.
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