Research Article
Monitoring and Identification of Vibration Frequencies on a Portion of México City Metro Line 12
Figure 10
Acceleration signals from 2012 to 2018; monitoring started in 2015. Average identified damping ratios and corresponding standard deviation from 2015 to 2018 based on N4SID and MOESP identification methods.
(a) |
(b) |
(c) |