Wood Beam Damage Identification Based on the Curvature Mode and Wavelet Transform

Figure 12

Working conditions 7–12 difference of wavelet coefficients. (a) Working condition 7. (b) Working condition 8. (c) Working condition 9. (d) Working condition 10. (e) Working condition 11. (f) Working condition 12.

(a)

(b)

(c)

(d)

(e)

(f)