Počet záznamů: 1
Adaptive Vibration Suppression System: An Iterative Control Law for a Piezoelectric Actuator Shunted by a Negative Capacitor
- 1.
SYSNO ASEP 0435182 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Adaptive Vibration Suppression System: An Iterative Control Law for a Piezoelectric Actuator Shunted by a Negative Capacitor Tvůrce(i) Kodejska, M. (CZ)
Mokrý, Pavel (UFP-V) RID
Linhart, V. (CZ)
Václavík, Jan (UFP-V) RID
Sluka, T. (CH)Zdroj.dok. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. - : Institute of Electrical and Electronics Engineers - ISSN 0885-3010
Roč. 59, č. 12 (2012), s. 2785-2796Poč.str. 12 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova ELASTICITY CONTROL ; HARMONIC EXCITATIONS ; STRUCTURAL VIBRATION ; FEEDBACK-CONTROL ; CIRCUITS ; MEMBRANE Vědní obor RIV BI - Akustika a kmity CEP ED2.1.00/03.0079 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFP-V - RVO:61389021 UT WOS 000312269800020 DOI https://doi.org/10.1109/TUFFC.2012.2520 Anotace An adaptive system for the suppression of vibration transmission using a single piezoelectric actuator shunted by a negative capacitance circuit is presented. It is known that by using a negative-capacitance shunt, the spring constant of a piezoelectric actuator can be controlled to extreme values of zero or infinity. Because the value of spring constant controls a force transmitted through an elastic element, it is possible to achieve a reduction of transmissibility of vibrations through the use of a piezoelectric actuator by reducing its effective spring constant. 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 to varying operational conditions is resolved by applying an adaptive control to the circuit parameters of the negative capacitor. A control law that is based on the estimation of the value of the effective spring constant of Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2015
Počet záznamů: 1