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

Figure 14

Working conditions 13–18 difference of wavelet coefficients. (a) Working condition 13. (b) Working condition 14. (c) Working condition 15. (d) Working condition 16. (e) Working condition 17. (f) Working condition 18.

(a)

(b)

(c)

(d)

(e)

(f)