典型快速谱峭图算法的研究及应用

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (15) : 109-114.

论文

典型快速谱峭图算法的研究及应用

马新娜1 杨绍普2

作者信息 +

Study and application of typical fast kurtogram

Ma Xinna 1 Yang Shaopu 2

Author information +

文章历史 +

摘要

针对工程实际中状态监测下的具体机械部件在特定运行环境中发生故障的原因及类型具有典型性，在分析快速谱峭图算法的基础上，提出了典型快速谱峭图算法。该算法借鉴快速谱峭图算法分层和选取中心频率的思想，以典型故障的三倍特征频率为带宽，快速定位谱峭度最大的频率区间，并将该算法应用于共振解调技术滤波器参数的确定。为了验证该算法的有效性，在滚动轴承故障诊断试验台上进行了振动测试，采用基于典型快速谱峭图算法的共振解调技术进行故障诊断和类型识别。结果表明，基于典型快速谱峭图算法的共振解调技术能够较好的诊断典型故障，具有一定的工程应用价值。

Abstract

In practical engineering, the causes and types of faults occurred on the specific mechanical components are typical. On the basis of analyzing fast kurtogram, the typical fast kurtogram is presented in the paper. With the fast kurtogram idea of hierarchy and selection of center frequency, the typical fast kurtogram takes three times harmonic of the characteristic frequency as bandwidth to quickly find the frequency range with the maximum spectral kurtosis. This algorithm is used to automatically select filter’s parameters of demodulated resonance. In order to verify the validity of the typical fast kurtogram, experiments are carried out on rolling bearing with the experiment platform of freight car. Demodulated resonance based on typical fast kurtogram is used to fault diagnosis and recognition. The results demonstrate the proposed algorithm is reliable and can meet the engineering application.

导出引用

马新娜1 杨绍普2. 典型快速谱峭图算法的研究及应用[J]. 振动与冲击, 2016, 35(15): 109-114

Ma Xinna 1 Yang Shaopu 2 . Study and application of typical fast kurtogram[J]. Journal of Vibration and Shock, 2016, 35(15): 109-114

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