Gear Crack Assessment Using Correlation Dimension

Gear Crack Assessment Using Correlation Dimension
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使用相关维度评估齿轮裂纹

DOI:
10.4028/www.scientific.net/amm.29-32.1627
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发表时间:
2010-08
期刊:
Applied Mechanics and Materials
影响因子:
--
通讯作者:
Chu, Fulei
Chu, Fulei
中科院分区:
其他
文献类型:
--
作者:
Zuo, Ming J.;Feng, Zhipeng;Chu, Fulei

文献摘要

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分形维数反映了动态系统的复杂性,蕴含着机器的健康状态信息。利用关联维数对不同裂纹尺寸的齿轮箱振动信号进行了分析,发现关联维数随裂纹尺寸的增大而单调增大。这与非线性动力学系统的本质是一致的:故障越严重,动力学系统越复杂,相应的分形维数也越大。关联维数具有评估齿轮局部损伤的潜力。
Fractal dimension reflects the complexity of dynamic systems, and contains the health status information of machinery. The experimental vibration signals of a gearbox with different gear crack size are analyzed using correlation dimension, and it is found that the correlation dimension increases monotonically with the increasing crack level. This is consistent with the nature of a nonlinear dynamic system: the more severe the fault, the more complicated the dynamic system, and accordingly the larger the fractal dimension. Correlation dimension has potential to assess gear localized damage.
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