Application of regularization dimension to gear damage assessment

Application of regularization dimension to gear damage assessment
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正则化维数在齿轮损伤评估中的应用

DOI:
10.1016/j.ymssp.2009.08.006
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发表时间:
2010-05
影响因子:
8.4
通讯作者:
Chu, Fulei
Chu, Fulei
中科院分区:
工程技术1区
文献类型:
--
作者:
Feng, Zhipeng;Zuo, Ming J.;Chu, Fulei

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分形维数提供了动态系统复杂性的度量,并包含机器的健康信息。介绍了正则化维数的基础知识以及高斯核参数对信号正则化的影响。正则化维数比其他分形维数具有优势,因为可以根据感兴趣的信号频率分量选择与尺度无关的范围。首先对实验齿轮箱振动信号进行谱分析,然后根据谱结构选择与尺度无关的范围来计算正则化维数,正则化维数随着齿轮损伤程度的增加而单调增加。与相关维数和峰度的比较显示了正则化维数在评估齿轮局部损伤方面的优势。
Fractal dimension provides a measure of the complexity of a dynamic system, and contains the health information of a machine. The basics of regularization dimension and the effects of Gaussian kernel parameters on the regularization of a signal are introduced. Regularization dimension has advantages over other fractal dimensions because the scale-independent range can be selected according to the signal frequency components of interest. Experimental gearbox vibration signals are analyzed by means of spectral analysis firstly, and then according to the spectral structure, the scale-independent range is selected for computing the regularization dimension, which increases monotonically with increasing gear damage degree. Comparison with correlation dimension and kurtosis shows the advantages of regularization dimension in assessing the localized gear damage.
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