Active damping in precision equipment using piezo

Bayan Babakhani, Theo de Vries

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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    In this paper, the rotational vibration in the linearly actuated precision machines with low damping is discussed. This so called Rocking mode is e.g. caused by the compliance in the guiding system of a linear actuator and leads to a long settling time of the end-effector. Another problem occurs when a feedback motion controller is applied to the plant. Complex poles present in the loop transfer that are close to the imaginary axis due to low damping, are destabilized by a relatively small gain. A possible solution is actively damping the resonance frequencies. By flattening the resonance peaks, the bandwidth of the system can increase without the danger of instability. In turn, this allows for higher integral gain in the motion control algorithm.
    Original languageEnglish
    Title of host publication29th Benelux Meeting on Systems and Control
    Subtitle of host publicationMarch 30 - April 1, 2010, Heeze, The Netherlands : book of abstracts
    EditorsGjerrit Meinsma, Han Stigter
    Place of PublicationWageningen, The Netherlands
    PublisherWageningen University
    Number of pages1
    ISBN (Print)978-90-8585-672-6
    Publication statusPublished - 30 Mar 2010
    Event29th Benelux Meeting on Systems and Control 2010 - Heeze, Netherlands
    Duration: 30 Mar 20101 Apr 2010
    Conference number: 29


    Conference29th Benelux Meeting on Systems and Control 2010


    • Active damping


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