Cross narrowband spectrum program
“Resonance analysis” is an additional function of the program “Cross narrowband spectrum”, which allows to implement analysis of frequency characteristics of the systems that are exposed to a particular impact. The resonance is calculated between the input impact (input signal) and system response to the impact (output signal).
In order to enable the dialog window of the “Resonance analysis” program, activate the parameters configuration menu using the “Options” key in the “Cross narrowband spectrum” program.
To enable the program window, select the option “Resonance analysis” in the section “Additional windows” (see the “Add. graphic” column). Please, note, that for the purpose of resonance search it is necessary to set a different value of frequency resolution parameter.
As the necessary parameters are set, click the “Apply” key – you will see the dialog window of the program.
Evaluation of amplitude and phase characteristics are shown in the graphs at the top section of the program interface. As you can see, the amplitude characteristic has a clear peak at the frequency of ∼ 56 Hz, while the phase characteristic also has a curve at the same frequency (these graphs are quite typical for physical systems with a single degree of freedom). This indicates the normal first mode of the cantilever beam that will be used for further control.
The experiment has shown that the “Resonance analysis” program is a simple and convenient way of frequency characteristics evaluation, which allows to obtain comprehensive data about the controlled systems.