determine precise chatter frequency. The microphone was placed near the tool holder to catch the sound waves from the cutting process and it was connected to a frequency analyzer and a plotter. It was found that there is an increase of about 20dB in the sound pressure level as a result of...
However, using the Plotter tool of the LabOne user interface we can measure its mean and variance as shown in Figure 4. Please note that the mean and variance in the figure are different from parameters μ and σ in the mathematical expression. Measurement vs. Model First, we obtain the ...