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

Kód výsledku v 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>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

A - Audiovizuální tvorba

CEP obor

BI - Akustika a kmity

OECD FORD obor

—

Projekt

<a href="/cs/project/GA101%2F08%2F1279" target="_blank" >GA101/08/1279: Moderní metody potlačování hluku a vibrací pomocí piezoelektrických materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

—

Místo vydání

State College, USA

Název nakladatele resp. objednatele

The Pennsylvania State University Materials Research Institute N228 Millennium Science Complex University Park, PA 16802 USA

Verze

—

Identifikační číslo nosiče

CD-ONR-2012