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Statements

Subject Item
n2:RIV%2F46747885%3A24220%2F09%3A%230001262%21RIV10-GA0-24220___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
In the semi-active vibration control device, the piezoelectric actuator is attached to the vibrating structure and connected to an active analog electrical shunt that behaves as a negative capacitor. The word %22active%22 means that the electrical shunt consists of a electrical source and the operational amplifier. The energy harvesting device consists of the piezoelectric actuator attached to the vibrating structure and connected to a passive diode rectifier with charge storage. It is seen that although the two aforementioned devices are designed for a different purpose, they have the same system topology and they differ only in the direction of the electric energy flow. In this paper, there will be analyzed strengths and weaknesses of the typical realizations of the energy harvesting and semi-active vibration control devices and discussed principles that can enhance their efficiency. Optimized concepts that eliminate weaknesses of the aforementioned devices will be presented. In the semi-active vibration control device, the piezoelectric actuator is attached to the vibrating structure and connected to an active analog electrical shunt that behaves as a negative capacitor. The word %22active%22 means that the electrical shunt consists of a electrical source and the operational amplifier. The energy harvesting device consists of the piezoelectric actuator attached to the vibrating structure and connected to a passive diode rectifier with charge storage. It is seen that although the two aforementioned devices are designed for a different purpose, they have the same system topology and they differ only in the direction of the electric energy flow. In this paper, there will be analyzed strengths and weaknesses of the typical realizations of the energy harvesting and semi-active vibration control devices and discussed principles that can enhance their efficiency. Optimized concepts that eliminate weaknesses of the aforementioned devices will be presented.
dcterms:title
Efficiency-optimized Designs of Vibration Control and Energy Harvesting Devices Efficiency-optimized Designs of Vibration Control and Energy Harvesting Devices
skos:prefLabel
Efficiency-optimized Designs of Vibration Control and Energy Harvesting Devices Efficiency-optimized Designs of Vibration Control and Energy Harvesting Devices
skos:notation
RIV/46747885:24220/09:#0001262!RIV10-GA0-24220___
n3:aktivita
n15:P
n3:aktivity
P(GA101/08/1279)
n3:dodaniDat
n9:2010
n3:domaciTvurceVysledku
n7:3800733 n7:3999793 n7:9828915 n7:7453663 n7:8567212
n3:druhVysledku
n12:A
n3:duvernostUdaju
n16:U
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
312500
n3:idVysledku
RIV/46747885:24220/09:#0001262
n3:jazykVysledku
n13:eng
n3:klicovaSlova
Piezoelectric actuator; Vibration control; Energy harvesting; Negative capacitor; AC/DC transducer
n3:klicoveSlovo
n4:Piezoelectric%20actuator n4:AC%2FDC%20transducer n4:Energy%20harvesting n4:Negative%20capacitor n4:Vibration%20control
n3:kodPristupu
n6:L
n3:kontrolniKodProRIV
[EDD0EF8521E8]
n3:mistoVydani
Xian, People's Republic of China
n3:nosic
IMF-ISAF-2009
n3:objednatelVyzkumneZpravy
Electronic Materials Research Laboratory of Xi’an Jiaotong University, Xi'an 710049, People's Republic of China
n3:obor
n8:BI
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n14:GA101%2F08%2F1279
n3:rokUplatneniVysledku
n9:2009
n3:tvurceVysledku
Mokrý, Pavel Černík, Martin Kodejška, Miloš Borovec, Jiří Václavík, Jan
n3:verzeVyzkumneZpravy
2
n17:organizacniJednotka
24220