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多转轴机械自适应滤波交叉阶比跟踪

, PP. 213-216

Keywords: 阶比跟踪,自适应滤波,交叉阶比,拍波,解耦合

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Abstract:

有多个独立转轴的旋转及往复运动机械在升降速过程产生的振动复杂,不同参考转轴的阶比在频率交叉的时候会产生拍波现象,使阶比成分的分离成为难题。通过研究周期性负载机械系统振动信号的特点,构造了包括状态方程和观测方程的振动信号模型,采用解耦合自适应滤波分离方法提取相交叉的阶比成分。克服了其他阶比跟踪方法不能分离交叉阶比的不足。

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