Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F12%3A%230002171" target="_blank" >RIV/46747885:24220/12:#0002171 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Adaptive system for the broadband vibration control using a piezoelectric actuator shunted by a negative capacitor
Original language 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 negativecapacitor 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, offe
Czech name
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Czech description
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Classification
Type
A - Audiovisual production
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F08%2F1279" target="_blank" >GA101/08/1279: Modern methods for noise and vibration suppression using piezoelectric materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
ISBN
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Place of publication
State College, USA
Publisher/client name
The Pennsylvania State University Materials Research Institute N228 Millennium Science Complex University Park, PA 16802 USA
Version
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Carrier ID
CD-ONR-2012