| 引用本文: | 张能,何琳,李彦,等.次级通道估计误差对Fx-Newton算法的影响.[J].国防科技大学学报,2020,42(1):133-138.[点击复制] |
| ZHANG Neng,HE Lin,LI Yan,et al.Effects of estimation errors of the secondary path on the Fx-Newton algorithm[J].Journal of National University of Defense Technology,2020,42(1):133-138[点击复制] |
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| 次级通道估计误差对Fx-Newton算法的影响 |
| 张能1,2,何琳1,2,李彦1,2,王迎春1,2 |
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(1. 海军工程大学 振动与噪声研究所, 湖北 武汉 430033;2. 海军工程大学 船舶振动噪声重点实验室, 湖北 武汉 430033)
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| 摘要: |
| Fx-Newton算法在执行过程中需要估计次级通道模型,针对主被动隔振工程应用中次级通道估计存在误差的问题,假设输入信号为正弦信号,建立含次级通道估计误差的Fx-Newton算法结构模型,推导了Fx-Newton算法的稳定性条件,并就相位误差和幅值误差对Fx-Newton算法稳定性和收敛性的影响做了详细阐述。最后对两自由度主被动隔振模型开展仿真研究,验证了理论分析结果。 |
| 关键词: 主被动隔振 次级通道估计 Fx-Newton算法 幅值误差 相位误差 |
| DOI：10.11887/j.cn.202001018 |
| 投稿日期：2018-09-07 |
| 基金项目:军事科技领域青年人才托举工程资助项目(18-JCJQ-QT-002) |
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| Effects of estimation errors of the secondary path on the Fx-Newton algorithm |
| ZHANG Neng1,2, HE Lin1,2, LI Yan1,2, WANG Yingchun1,2 |
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(1. Institute of Vibration & Noise, Naval University of Engineering, Wuhan 430033, China;2. National Key Laboratory on Ship Vibration & Noise, Naval University of Engineering, Wuhan 430033, China)
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| Abstract: |
| Estimation of the secondary path model is required in the implementation of the Fx-Newton algorithm. Aiming at the problem that errors exist in the estimation of the secondary path model in the active-passive vibration isolation engineering application, providing that the input signal is a sine signal, the structure model of the Fx-Newton algorithm was established, considering the error of the estimation of the secondary path model. Stability condition of the Fx-Newton algorithm was deduced. Effects of the amplitude and phase errors on the stability and convergence of the Fx-Newton algorithm were elaborated. Finally, simulations for a two-degree-of-freedom active-passive vibration isolation model were conducted and the theoretical analysis results were verified. |
| Keywords: active-passive vibration isolation estimation of the secondary path Fx-Newton algorithm amplitude error phase error |
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