Shock and Vibration / 2015 / Article / Tab 4

Research Article

Damage Detection and Quantification Using Transmissibility Coherence Analysis

Table 4

The comparison of transmissibility, TC, and FRF coherence in peak change.

State IndicatorFrequency shift (Hz)Amplitude value
Peak 1 (%)*Peak 2 (%)*Peak 1 (%)*Peak 2 (%)*

#1 (5, 2)47.5469.9250.1828.95
#647.15−0.8265.47−6.3646.58−7.1727.62−4.59
#746.25−2.7160.42−13.5947.42−5.5028.94−0.03

#1TC (5, 2)47.5870.080.540.18
#647.07−1.0765.55−6.460.36−33.330.210.17
#746.25−2.8060.63−13.480.26−51.850.52188.89

#1FRFC (5, 1)54.8871.880.830.80
#654.960.1567.19−6.520.76−8.430.867.5
#754.69−0.3562.15−13.540.78−6.020.8911.25

*Increase from the baseline “State #1.”

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