Table 3.

Training design.

Training Group	Data Set d1	Data Set d2	Data Set d3
Training samples [M $\times$ q]	x axis: $[8\times 277]{ }^1$	x axis:${[8\times 91]}^{ 2}$	x axis: $[8\times 77]{ }^3$
	y axis:$[8\times 277]{ }^1$	y axis:$[8\times 91]{ }^2$	y axis:$[8\times 77]{ }^3$
	z axis:$[8\times 277]{ }^1$	z axis:$[8\times 91]{ }^2$	z axis:$[8\times 77]{ }^3$

¹ represents the matrix of non-damaged blades, ² represents the matrix of 5% broken blades, and ³ represents the matrix of 15% broken blades.