’I. Based on study of Local-wave method and fractal dynamics, fractal dimensions of IMF are developed as condition parameters for the fault diagnosis of rotor system.
4、探讨了分形动力学理论在转子系统故障诊断中的应用，将局域波法和分形理论相结合，提出了以IMF分形维数作为状态特征量的转子系统故障诊断方法。
参考来源 - 基于局域波法的转子系统非线性动态特性及应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Then, Local Wave method is introduced in consideration of the non-stationarity characteristic of the vibrating signals from NC machines.
针对数控机床机械系统的非线性和振动信号的非平稳特性，引入局域波分析方法。
The research work mentioned above enhances the local wave method. It also proved that the methods which are introduced in the paper can effectively identify the fault and solve practical problems.
以上研究工作在一定程度上丰富和完善了局域波分析方法，诊断应用表明本文中提出的方法能够有效的识别故障，解决实际问题。
The blind source separation fault diagnosis method based on Local wave time-frequency images is developed.
提出了一种基于局域波时频图像的盲源分离故障诊断方法。
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