It concludes that, the fault dimension characteristic, as concerned in engineering circles, is substantially a fractal structure.
结论表明，对于工程上关心的断裂尺度特征，实质上是一个分形结构。
When the fault appears, there will be some variation in the fractal dimension of measurement signal, and the fault detection can be carried out according to this change.
由于故障发生时系统表现异常，这些异常可导致测量信号分形维数的变化，根据这些变化可进行故障检测。
This paper connected the fractal theory with the mechanical fault diagnosis, discussed the basic concept of the fractal dimension, introduced the concept of gridding dimension and its solution.
将分形的有关理论与机械故障诊断联系起来，论述了分形维数的基本概念，介绍了网格维数及其求取方法。
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