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- W2285986056 abstract "Piezoelectric cantilever beam is used in conversion of mechanical energy to electrical energy, and vice versa. But, when an external load connected to piezoelectric material, mechanical characteristic of cantilever beam is changed. We study resonance frequency shift of the piezoelectric cantilever beam according to load connection. When the external circuit changed from open to short, resonance frequency of the piezoelectric cantilever beam is changed from 40 Hz to 39 Hz. Also, displacement of the free end of the piezoelectric cantilever beam increased 2.4%. After then, we optimize resistive impedance matching for maximum power transfer. In matching case, resonance frequency is located between open and short circuit connection. Free end displacement also 21.4% decreased. This result shows that electrical load connection results in changing of mechanical characteristic like stiffness, resonance frequency, displacement." @default.
- W2285986056 created "2016-06-24" @default.
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- W2285986056 date "2015-04-01" @default.
- W2285986056 modified "2023-09-24" @default.
- W2285986056 title "부하연결에 따른 외팔보 압전에너지 하베스터의 공진주파수 변화 해석" @default.
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