摘要
双谱是处理非线性、非高斯性信号的有力工具,它包含了高阶谱的所有特性.针对滚动轴承具有非线性和非高斯的特性,利用双谱分析方法研究了不同故障模式下滚动轴承的双谱特性以及同一故障类型在不同程度时的双谱特性.实验结果表明,利用双谱特性能很好地区分滚动轴承的不同故障模式以及故障的严重程度,双谱分析方法在滚动轴承故障诊断中具有良好的工程应用前景.
Bispectrum, which has all characteristics of higher-order spectrum, is a powerful processing tool for non-linear and non-Gaussian signal. Because the signal from rolling bearing is non-linear and non-Gaussian, here, the bispectrum analysis method is applied to the different types of rolling bearing and the different serious extent for the same bearing fault. The experiments show that the bispectrum analysis method is very effective in the fault diagnosis of rolling bearing. This method has a good prospect in the fault diagnosis of rolling bearing.
出处
《中国工程机械学报》
2005年第3期365-368,共4页
Chinese Journal of Construction Machinery
基金
河南省杰出人才创新基金资助项目
关键词
双谱分析
轴承
故障诊断
bispectrum analysis
rolling bearing
fault diagnosis
