| ARMA时序模型在模态参数识别中的应用 |
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| 引用本文： | 李建康.ARMA时序模型在模态参数识别中的应用[J].排灌机械,1994,12(1):54-57. |
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| 作者姓名： | 李建康 |
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| 作者单位： | 江苏工学院 |
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| 摘 要： | 根据减速器，泵，机床等机械系统整体振动加速度作为时间序列，来建立ＡＲＭＡ（２，１）模型。并利用时序模型参数与模态参数之间的关系。求解振动系统的模态参数。重点讨论了用时域法对系统固有频率和阻尼系数的识别问题。
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| 关 键 词： | 时间序列 模型 模态参数 |
Application of ARMA Time Series Model in Identification of Modal Parameter |
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| Li Jiankang.Application of ARMA Time Series Model in Identification of Modal Parameter[J].Drainage and Irrigation Machinery,1994,12(1):54-57. |
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| Authors: | Li Jiankang |
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| Institution: | Li Jiankang |
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| Abstract: | An ARMA(2,1) model was established taking the vibration accelleration ofwhole mechanical system, which included the gear-box, the pump and the machine tool, as atime series. And the relation between model parametersxif time series and the modalparameters was used to obtain the modal parameters of the vibration system. The identifica-tion problem of natural frequency and damping coefficient of the system in time series meth-od was emphatically discussed. |
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| Keywords: | time series model parameter modal parameter |
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