Figure 8.
Frequency spectra for SSM at no-load operation for the two positions β0 and β0 + π: (a) healthy machine; (b) faulty machine.
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.