Automated Operational Modal Analysis for Rotating Machinery Based on Clustering Techniques

. 2023 Feb 2;23(3):1665. doi: 10.3390/s23031665

Variable	Description	Unit
$f_{s}$	Sampling Frequency	Hz
$f$	Natural Frequency	Hz
$ζ$	Damping Ratio	-
$φ$	Mode Shape	-
$Q_{1}$	First Quartile	Engineering Unit
$Q_{3}$	Third Quartile	Engineering Unit
$I Q R$	Difference between the upper and lower quartiles	Engineering Unit