一种反馈式自适应振动控制方法研究

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摘要对一种反馈式的线谱振动自适应主动控制方法的参考信号生成方法进行了研究，分析了该参考信号生成方法的基本原理和不足，并对此进行了改进，抑制参考信号生成中，背景噪声引起的参考信号幅值波动。然后，通过应用改进的参考信号生成方法，形成了新的反馈式自适应控制方法。最后进行了，仿真分析和基于主动控制平台的试验研究。仿真结果表明，相比原算法，改进后的反馈式自适应控制方法具有更快的收敛特性和较小的稳态误差；在相同的高背景噪声和大步长系数下，改进算法具有更好的抗噪稳定性能。试验结果表明，改进后的算法能够在参考信号与振源信号存在频率偏差的情况下，对多频振动信号取得有效的主动控制效果。

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	刘锦春 1
	何其伟 1
	朱石坚 1
	陈章位 2

关键词 ：自适应反馈, 主动控制, 振动控制

Abstract：Research on an adaptive feedback vibration control algorithm was conducted to analyze the basic concept of reference signal generator. The defect of the reference signal generator was derived. Modification to the generator was implemented to suppress the fluctuation of reference signal amplitude induced by the additive noise. With the modified reference signal generator introduced, the modified algorithm was proposed. Finally, simulation and experiment based on an active vibration system was conducted. Simulation results demonstrate that the modified algorithm has a better convergence performance and yields less means squared error at steady state, the modified algorithm has a better anti-noise stability performance. Experiment results confirm that the modified algorithm could effectively suppress the vibration of multi-spectra with the existence of frequency error between the primary signal and reference signal.

Key words： adaptive feedback active control vibration control

收稿日期: 2015-04-21 出版日期: 2016-08-15

引用本文:

刘锦春 1，何其伟 1，朱石坚 1，陈章位 2. 一种反馈式自适应振动控制方法研究[J]. 振动与冲击, 2016, 35(16): 135-141.
LIU Jinchun 1, HE Qiwei 1, ZHU Shijian 1,Chen Zhangwei 2. Research on an adaptive feedback vibration control algorithm. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(16): 135-141.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2016/V35/I16/135

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