Figure 6.
Obtaining the FRF: (a) One average of the frequency signals of Accelerometer and Hammer after applying the FFT; and (b) FRF estimated with 5 averages (impacts) and coherence.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.