| 实际复摆的非线性振荡系统 |
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| 引用本文： | 徐德嘉,周庆根.实际复摆的非线性振荡系统[J].海军工程大学学报,1991(2). |
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| 作者姓名： | 徐德嘉 周庆根 |
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| 作者单位： | 造船工程系，造船工程系 |
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| 摘 要： | 本文建立了实际复摆振荡系统的非线性模型,并用一阶谐波平衡法导出各种特征状态函数,从而分析计算定常周期及其运动稳定性、稳定分支振荡的跳跃特性和最大振幅特性。本文利用可控力矩激振装置成功地实现了复摆的强迫振荡实验。实例表明不仅能准确地辩识实际复摆非线性模型的参数,而且实测到复摆的稳定分支振荡和跳跃现象,从而实验验证了实际复摆非线性振荡的理论分析。
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| 关 键 词： | 复摆 非线性振动 力矩激振仪 辩识技术 |
Nonlinear Oscillation System of Actual Complex Pendulum |
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| Xu Dejia Zhou Qingen.Nonlinear Oscillation System of Actual Complex Pendulum[J].Journal of Naval University of Engineering,1991(2). |
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| Authors: | Xu Dejia Zhou Qingen |
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| Institution: | Xu Dejia Zhou Qingen |
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| Abstract: | The paper sets up the nonlinear model of the oscillation system of the actual complex pendulum. Various characteristic state functions are derived by usimg the first order harmonic balance method. From which, the steady periodical solutions and its motion stability, the jump character of stable branch oscillations and maximum amplitude character are analysed and calculated. Using the controllable moment exciter, the forced oscillation tests of the actual complex pendulum can be carried out successfully. An example shows that not only the paramters of the nonlinear model of the actual complex pendulum can be precisely identified; but also the stable branch oscillation and jump phenomenon of the complex pendulum are practically measured. Thereby the theoretical analysis of nonlinear oscillation of the actual complex pendulum can be experimentally verified. |
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| Keywords: | Complex pendulum Nonlinear oscillation Moment exciter Identification Technique |
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