表面波纹度对滚动轴承-转子系统非线性振动的影响

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (8) : 109-114.

论文

表面波纹度对滚动轴承-转子系统非线性振动的影响

顾晓辉，杨绍普，刘永强，廖英英

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Effect of surface waviness on the nonlinear dynamic of a rotor supported on ball bearings

GU Xiao-hui，YANG Shao-pu， LIU Yong-qiang，LIAO Ying-ying

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摘要

分析了考虑滚动轴承内外圈波纹度、径向间隙和非线性赫兹力作用下的滚动轴承-转子系统非线性动力学响应。根据不同参数下的分岔图、功率谱图和庞加莱截面图，研究了轴承表面波纹度最大幅值和转速对系统的非线性振动的影响，找到了不同故障类型的特征频率。根据分形理论应用G-P算法计算了相同转速下不同最大幅值时的关联维数。分析结果表明，当系统处于混沌状态时随着波纹度最大幅值的增加，其关联维数也会相应增大。因此关联维数可以应用于轴承故障的特征提取与定量诊断中。

Abstract

The response of a rotor supported on ball bearings which considering nonlinearity such as surface waviness, internal radial clearance and Hertzian contact force is analyzed and the result is presented in the form of bifurcation diagram, power spectra and Poincaré map. The effect of maximum amplitude of waviness and speed on the dynamic of the rotor response is mainly studied and the characteristic frequency of surface waviness is analyzed. G-P method is used to calculate the correlation dimension at different maximum amplitudes. The result shows that the correlation dimension will increase with the addition of amplitude of the waviness when the system in chaos and it’s implied that the correlation dimension can be usefully applied to the diagnosis and quantitative identification of the fault of waviness.

导出引用

顾晓辉;杨绍普;刘永强;廖英英. 表面波纹度对滚动轴承-转子系统非线性振动的影响[J]. 振动与冲击, 2014, 33(8): 109-114

GU Xiao-hui;YANG Shao-pu;LIU Yong-qiang;LIAO Ying-ying. Effect of surface waviness on the nonlinear dynamic of a rotor supported on ball bearings[J]. Journal of Vibration and Shock, 2014, 33(8): 109-114