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Description
  • The design and realization of an adaptive vibration isolation system based on a method to control the effective elastic stiffness of piezoelectric materials are presented in this paper. In this system, the vibration isolation effect is achieved by absorption of vibrations transmitted through a multi-stack piezoelectric actuator connected to an active analog circuit that behaves as a negative capacitor. The problem of a high sensitivity of the system to the proper adjustment of the negative capacitor and a deterioration of the vibration isolation efficiency in changing operational conditions are analyzed. A method for the self-adjustment of the system by appending an additional digital control circuit to the negative capacitor is implemented. The transmissibility of vibrations through the piezoelectric actuator was measured in different control regimes.
  • The design and realization of an adaptive vibration isolation system based on a method to control the effective elastic stiffness of piezoelectric materials are presented in this paper. In this system, the vibration isolation effect is achieved by absorption of vibrations transmitted through a multi-stack piezoelectric actuator connected to an active analog circuit that behaves as a negative capacitor. The problem of a high sensitivity of the system to the proper adjustment of the negative capacitor and a deterioration of the vibration isolation efficiency in changing operational conditions are analyzed. A method for the self-adjustment of the system by appending an additional digital control circuit to the negative capacitor is implemented. The transmissibility of vibrations through the piezoelectric actuator was measured in different control regimes. (en)
  • Tento článek prezentuje návrh a realizace adaptivního vibroizolačního systému založeného na metodě řízení efektivní elastické tuhosti piezoelektrických matriálů. Vibroizolačního efektu v tomto systému je dosaženo pohlcením vibrací přenesených skrz objemový piezoelektrický aktuátor připojeného k aktivnímu analogovému obvodu, která se chová jako kondenzátor se zápornou kapacitou. Je analyzován problém vysoké citlivosti systému na správné nastavení a zhoršení jeho vibroizolační účinnosti v proměnných pracovních podmínkách. Je implementována metoda automatického nastavení systému. Je změřen přenos vibrací skrz piezoelektrický aktuátor v různých režimech řízení. (cs)
Title
  • On the vibration control using a piezoelectric actuator and a negative capacitor adjusted by a microprocessor
  • On the vibration control using a piezoelectric actuator and a negative capacitor adjusted by a microprocessor (en)
  • O potlačování vibrací pomocí piezoelektrického aktuátoru a kondenzátoru se zápornou kapacitou řízeného mikroprocesorem (cs)
skos:prefLabel
  • On the vibration control using a piezoelectric actuator and a negative capacitor adjusted by a microprocessor
  • On the vibration control using a piezoelectric actuator and a negative capacitor adjusted by a microprocessor (en)
  • O potlačování vibrací pomocí piezoelektrického aktuátoru a kondenzátoru se zápornou kapacitou řízeného mikroprocesorem (cs)
skos:notation
  • RIV/46747885:24220/07:#0000209!RIV08-GA0-24220___
http://linked.open.../vavai/riv/strany
  • 786-789
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/07/1289), S
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 439454
http://linked.open...ai/riv/idVysledku
  • RIV/46747885:24220/07:#0000209
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Piezoelectric actuator; Negative capacitor; Active elasticity control (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [726782CB6A4C]
http://linked.open...v/mistoKonaniAkce
  • Nara, Japonsko
http://linked.open...i/riv/mistoVydani
  • Nara, Japonsko
http://linked.open...i/riv/nazevZdroje
  • Sixteenth IEEE International Symposium on Applications of Ferroelectrics, 2007. ISAF 2007.
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Kodejška, Miloš
  • Mokrý, Pavel
  • Sluka, Tomáš
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
issn
  • 1099-4734
number of pages
http://purl.org/ne...btex#hasPublisher
  • IEEE
https://schema.org/isbn
  • 978-1-4244-1334-8
http://localhost/t...ganizacniJednotka
  • 24220
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