Shock and Vibration

Research Article

Fault Diagnosis of Electric Impact Drills Based on Time-Varying Loudness and Logistic Regression

Table 1

PAR of the time-varying loudness spectra of healthy EIDs.
SamplesPAR value (Hz)SamplesPAR value (Hz)
120.62188612.26184
214.6818879.91194
314.05175817.13182
410.7518199.53184
521.3184108.74186