Dynamics of piezoceramics-based mass and force actuators for rotating machines

P.J. Sloetjes, Andries de Boer, Peter van der Hoogt

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Abstract

In the past decade, it has become more and more common to install active vibration control devices on rotating systems like grinding machines, tooling centers, industrial fans and drive shafts. In the present research, two innovative actuation concepts for such devices are evaluated. The first device is a force actuator based on piezoceramic fibers, which has a low power consumption and high dynamic range. The second device is a mass redistribution actuator based on two piezoelectric ultrasonic motors, which is smaller and faster than conventional electromagnetic devices. At the basis of the analysis are rotor dynamic finite element models including actuators, sensors and feedback controllers. In simulations and experiments with device one, feedback control and scheduled feedforward control are considered. It is shown experimentally that the unbalance response at a critical speed can be reduced by some 97%. In experiments with device two, the positioning speed is determined.
Original languageEnglish
Title of host publicationFourteenth International Congress on Sound and Vibration 2007 (ICSV14)
Editors B Randall
Place of PublicationCairns, Australia
PublisherThe Australian Acoustical Society
Pages2434-2441
Number of pages8
ISBN (Print)978-1-62748-000-0
Publication statusPublished - 9 Jul 2007
Event14th International Congress on Sound and Vibration, ICSV 2007 - Cairns, Australia
Duration: 9 Jul 200712 Jul 2007
Conference number: 14

Conference

Conference14th International Congress on Sound and Vibration, ICSV 2007
Abbreviated titleICSV
CountryAustralia
CityCairns
Period9/07/0712/07/07

Keywords

  • IR-58896
  • METIS-245386

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    Sloetjes, P. J., de Boer, A., & van der Hoogt, P. (2007). Dynamics of piezoceramics-based mass and force actuators for rotating machines. In B Randall (Ed.), Fourteenth International Congress on Sound and Vibration 2007 (ICSV14) (pp. 2434-2441). Cairns, Australia: The Australian Acoustical Society.