Figure 26.
System response diagram when ωh = 1.1: (a) phase diagram, (b) time history diagram, (c) spectrogram and (d) sectional diagram of Poincaré.
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.