About: Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Principles of an adaptive vibration isolation system based on a method to control the effective spring constant of the piezoelectric actuator are presented here. In this system, the vibration isolation effect is achieved by the actively controlled elastic response of a multi-stack piezoelectric actuator shunted by an active analog electrical network that behaves as a negative capacitor. The narrow frequency range and broad frequency range vibration isolation systems are analyzed, modeled, and experimentally investigated. The problem of high sensitivity of the vibration control system is resolved by applying the adaptive control to the circuit parameters of the negative capacitor. An adaptive system, which can achieve the self-adjustment of the negative capacitor parameters by analyzing a realistic vibration signal that consists of a noise and a dominant harmonic component, is presented. It is shown that such an arrangement allows the realization of a simple system, which, however, offers great vibration isolation efficiency in variable vibration conditions. Principles of an adaptive vibration isolation system based on a method to control the effective spring constant of the piezoelectric actuator are presented here. In this system, the vibration isolation effect is achieved by the actively controlled elastic response of a multi-stack piezoelectric actuator shunted by an active analog electrical network that behaves as a negative capacitor. The narrow frequency range and broad frequency range vibration isolation systems are analyzed, modeled, and experimentally investigated. The problem of high sensitivity of the vibration control system is resolved by applying the adaptive control to the circuit parameters of the negative capacitor. An adaptive system, which can achieve the self-adjustment of the negative capacitor parameters by analyzing a realistic vibration signal that consists of a noise and a dominant harmonic component, is presented. It is shown that such an arrangement allows the realization of a simple system, which, however, offers great vibration isolation efficiency in variable vibration conditions. (en)
Title	Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor (en)
skos:prefLabel	Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor (en)
skos:notation	RIV/46747885:24220/12:#0002171!RIV13-GA0-24220___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA101/08/1279)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kodejška, Miloš Linhart, Václav Mokrý, Pavel
http://linked.open.../riv/druhVysledku	A(V) - Audiovizuální tvorba se vzdáleným přístupem
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Technická univerzita v Liberci / Fakulta mechatroniky, informatiky a mezioborových studií
http://linked.open...dnocenehoVysledku	121060
http://linked.open...ai/riv/idVysledku	RIV/46747885:24220/12:#0002171
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	vibration control; broad frequency range; piezoelectric actuator; negative impedance converter (en)
http://linked.open.../riv/klicoveSlovo	broad frequency range negative impedance converter vibration control piezoelectric actuator
http://linked.open...i/riv/kodPristupu	L
http://linked.open...ontrolniKodProRIV	[3D1BE2B71311]
http://linked.open...i/riv/mistoVydani	State College, USA
http://linked.open...n/vavai/riv/nosic	CD-ONR-2012
http://linked.open...telVyzkumneZpravy	The Pennsylvania State University Materials Research Institute N228 Millennium Science Complex University Park, PA 16802 USA
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Modern methods for noise and vibration suppression using piezoelectric materials
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Kodejška, Miloš Linhart, Václav Mokrý, Pavel Václavík, Jan
http://localhost/t...ganizacniJednotka	24220

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