| 引用本文: | 李彦,何琳,王迎春,等.针对多振源密频及波动线谱主动控制的改进算法及试验.[J].国防科技大学学报,2021,43(2):1-10.[点击复制] |
| LI Yan,HE Lin,WANG Yingchun,et al.Improved algorithm and experiments for active control of dense and fluctuating frequency sinusoidal vibration induced by multi-sources[J].Journal of National University of Defense Technology,2021,43(2):1-10[点击复制] |
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| 针对多振源密频及波动线谱主动控制的改进算法及试验 |
| 李彦1,2,何琳1,2,王迎春1,2,王春雨1,2,尹天齐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: |
| 为了让船舶机械主动隔振装置在线谱频率波动和多振源密频耦合等实船复杂工况下,仍能取得良好的振动线谱主动控制效果,研究了以多通道窄带Fx-Newton算法为基础的改进算法,提出了窄带滤波相位失真的自适应补偿器,使控制算法对线谱频率波动具有高鲁棒性；研究了多参考信号Fx-Newton算法,从多振源分离提取互不相关的多参考信号,从而解决多振源密频线谱控制难题。实验结果表明,改进窄带Fx-Newton算法对频率波动线谱的主动控制效果良好,并且对两个激振器或两台空压机组激励出的密频波动线谱也能进行稳定、高效的主动控制。 |
| 关键词: 改进窄带Fx-Newton算法 频率波动线谱 多振源密频线谱 相位失真补偿 多参考信号 |
| DOI：10.11887/j.cn.202102001 |
| 投稿日期：2019-10-14 |
| 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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| Improved algorithm and experiments for active control of dense and fluctuating frequency sinusoidal vibration induced by multi-sources |
| LI Yan1,2, HE Lin1,2, WANG Yingchun1,2, WANG Chunyu1,2, YIN Tianqi1,2 |
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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: |
| In order to achieve good active control effect of fluctuating-frequency and dense-frequency sinusoidal vibration induced by multi-sources which may occur in active-passive vibration isolation devices of marine machineries, the improved algorithm based on multi-channel narrowband Fx-Newton algorithm was studied. The algorithm with adaptive compensator for narrowband filter phase distortion was proposed, which can obtain high robustness for fluctuating-frequency sinusoidal vibration. Next, the multi-reference Fx-Newton algorithm was proposed to control dense-frequency multiple sinusoids in the same narrowband, under the precondition of acquiring multiple independent reference signals from vibration sources. The active control experiments show that the improved narrowband Fx-Newton algorithm can get good control effect on the fluctuating-frequency sinusoidal vibration, and can achieve stable and efficient control on the fluctuating dense-frequency sinusoidal vibration excited by two exciters or two air compressors. |
| Keywords: improved narrowband Fx-Newton algorithm fluctuating-frequency sinusoidal vibration dense-frequency sinusoids induced by multi-sources phase distortion compensation multi-reference signal |
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