High Frequency Modal Testing of the Multiblade Packets Using a Noncontact Measurement and Excitation System

Figure 6

Measured FRFs (averaged over 3 tests). (a) 0–5 kHz. (b) 5–10 kHz. (c) 10–15 kHz. (d) 15–20 kHz. (e) 20–25 kHz. (f) 25–30 kHz.

(a)

(b)

(c)

(d)

(e)

(f)