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Structural Health Monitoring with Piezoelectric Wafer Active Sensors, 2nd Edition by Victor Giurgiutiu

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image (95)

The vibration modes corresponding to the first, second, and third electromechanical resonances are marked EM in Table 9.2.

The explanation of electromechanical resonance

The electromechanical resonance can be explained by analyzing the electromechanical response given by Eq. (26). This equation states that

uˆ(x)=d31Eˆ3γsinγxcos12γla (96)

image (96)

where the relation a=la/2image was invoked. The poles of Eq. (96) correspond to frequency values where ...

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