By Kon-Well Wang, Jiong Tang
Adaptive Structural platforms with Piezoelectric Transducer Circuitry offers a entire dialogue at the integration of piezoelectric transducers with electric circuitry for the improvement and enhancement of adaptive structural platforms. masking quite a lot of interdisciplinary learn, this monograph provides a paradigm of taking complete benefit of the two-way electro-mechanical coupling features of piezoelectric transducers for structural regulate and identity in adaptive structural platforms. proposing descriptions of set of rules improvement, theoretical research and experimental research, engineers and researchers alike will locate this a useful reference.
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Additional info for Adaptive Structural Systems with Piezoelectric Transducer Circuitry
This is because at high frequency the inertial effect of the inductor tends to block charge flow in that branch. The increase of electro-mechanical coupling 30 Adaptive Structural Systems with Piezoelectric Transducer Circuitry coefficients requires larger resistance in the circuit for optimal passive tuning, and similar to the voltage driving case the charge amplification effect is reduced. In virtue of Eq. 8b), one can see that, unlike the voltage driving case where the static driving response is a function of the electromechanical coupling coefficient ξ , the static response for the charge/current driving case is not directly related to ξ .
16). This configuration obviously has the same passive damping ability as configuration (a), as both of them degenerate to the serial passive shunt with the absence of active driving source. 8c) Configuration (d): the RL elements and the charge source are all in parallel. 17). This configuration has the same passive damping ability as configuration (b), as 24 Adaptive Structural Systems with Piezoelectric Transducer Circuitry both of them degenerate to the parallel passive shunt (Wu, 1996) with the absence of active driving source.
1 for details). We only focus on a single-mode model in this study. 2) where φ is the first vibration mode of the cantilevered beam without the piezoelectric transducer and the shunt circuit, and q is the generalized mechanical displacement. Configuration (a): the piezoelectric transducer is connected in series with the RL elements and the voltage source. 3b) The over-bar is used to indicate the magnitude of the corresponding variable. The electrical property of a piezoelectric transducer is similar to that of a capacitor, which leads to a reactive current that provides only an electromagnetic field and does not perform work or result in useful power being delivered to the load.