李宏坤   

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Language:English

Paper Publications

Title of Paper:基于小波包频带能量分布的往复机故障诊断方法研究

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Date of Publication:2008-03-10

Journal:机械工程师

Issue:3

Page Number:35-37

ISSN No.:1002-2333

Key Words:小波包 频带能量 状态识别

Abstract:往复机在发生故障时会使得正常状态下的振动频带有所改变,因此各频率成分的能量分布中包含有丰富的故障信息,可以作为设备状态的评价参数.文中提出了基于"频带能量分布一设备状态"的故障辨识方法,采用小波包进行信号的分解-重构,并对每个频段的能量进行归一化,构成一个特征向量,可以以此进行设备的状态识别,并以柴油机的状态识别证明了此方法的有效性.

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