| 基于复模态理论研究线性周期时变齐次系统的动态特性 |
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| 引用本文： | 任计格,王生泽.基于复模态理论研究线性周期时变齐次系统的动态特性[J].振动与冲击,2004,23(2):96-97,81. |
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| 作者姓名： | 任计格 王生泽 |
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| 作者单位： | 东华大学,机械工程学院,上海,200051 |
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| 摘 要： | 线性周期时变齐次系统的状态方程经李亚普诺夫变换后，周期系数线性时变振动系统转化为一非齐次定常线性系统。对于拓补等价定常线性系统，可视为复模态系统，系统具有复模态和复振型。通过研究发现，线性周期时变齐次系统的模态不仅具有复模态的性质，而且为周期时变性。
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| 关 键 词： | 线性周期时变齐次系统 复模态 复振型 周期时变性 动态特性 |
Dynamic Analysis of the Linear Periodic Time-varying Vibration System Based on Complex Mode Theory |
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| Ren Jige,Wang Shengze.Dynamic Analysis of the Linear Periodic Time-varying Vibration System Based on Complex Mode Theory[J].Journal of Vibration and Shock,2004,23(2):96-97,81. |
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| Authors: | Ren Jige Wang Shengze |
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| Abstract: | The linear periodic time_varying vibration system can be changed to a constant coefficient linear system by L tansformation.The mode of the constant system is studied by complex mode theory.It concludes that the mode of the linear periodic time_varying vibration system is complex mode and is periodically time_varying. |
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| Keywords: | plural mode complex mode shape periodically time-varying |
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