Investigation into feedback control of part-fixture systems undergoing dynamic machining forces

O. J. Bakker, A. A. Popov, S. M. Ratchev

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The main focus of research in part-fixture mechanics has been in the static deformation and part constraints. Little attention has been paid to the dynamic behaviour of these systems. However, the dynamics of the system largely determines the obtained precision during the machining process. The part is modelled as a lumped mass-spring model and the clampers and locators of the fixture are modelled as springs. The fixture frame is considered to be much stiffer than the locators such that it provides zero displacement boundary conditions to the locators. In this study a hydraulic actuator is utilized to provide adaptive clamping forces. The analysis has shown that position feedback can be used to minimize unnecessary displacement of the workpiece. Additionally, a lead filter can be used to improve the steady state response.

    Original languageEnglish
    Title of host publication23rd International Conference on Noise and Vibration Engineering 2008, ISMA 2008
    PublisherUniversity of Leuven
    Pages131-140
    Number of pages10
    Volume1
    ISBN (Print)9781615671915
    Publication statusPublished - 1 Jan 2008
    Event23rd International Conference on Noise and Vibration Engineering 2008, ISMA 2008 - Leuven, Belgium
    Duration: 15 Sept 200817 Sept 2008

    Conference

    Conference23rd International Conference on Noise and Vibration Engineering 2008, ISMA 2008
    Country/TerritoryBelgium
    CityLeuven
    Period15/09/0817/09/08

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