Sparse Representation of Transients Based on Wavelet Basis and Majorization-Minimization Algorithm for Machinery Fault Diagnosis

Table 3

Working parameters of the third speed gears.

	Number of teeth	Rotating period (s)	Rotating frequency (Hz)	Meshing frequency (Hz)
Driving gear	25	0.050	20	500
Driven gear	27	0.054	18.5