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논문 기본 정보

자료유형
학술저널
저자정보
Ehtesham Mustafa Qureshi (Nanjing University of Aeronautics and Astronautics) Xing Shen (Nanjing University of Aeronautics and Astronautics) Lulu Chang (Nanjing University of Aeronautics and Astronautics)
저널정보
한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.16 Number.2
발행연도
2015.6
수록면
223 - 246 (24page)

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초록· 키워드

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Structural vibration control using a piezoelectric shunt is an established control technique. This technique involves connecting a piezoelectric patch, which is bonded onto or embedded into the vibrating structure, to an electric shunt circuit. Thus, vibration energy is converted into electrical energy and is dissipated through a network of electrical components. Different configurations of shunt have been researched, among which the negative capacitance-inductance shunt has gained prominence recently. It is basically an analog, active circuit consisting of operational amplifiers and passive elements to introduce real and imaginary impedance on the vibrating structure. The present study attempts to model the behavior of a negative capacitance-inductance shunt in terms of power output and efficiency using circuit modeling software. The shunt model is validated experimentally and is used to control the structural vibration of an aluminum beam, connected to a pair of piezoelectric patches, under broadband excitation. The model is also used to determine the optimal parameters of a negative capacitance-inductance shunt to increase the efficiency and predict the voltage output limit of op-amp against the supply voltage.

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Abstract
1. Introduction
2. Negative Capacitance-Inductance Shunt
3. Numerical Modeling of Negative Capacitance- Inductance Shunt Circuit
4. Experimental Setup and Control Scheme
5. Results and Discussion
6. Conclusion
References

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