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Experimental Determination of Dominant Multipliers in Milling Process by Means of Homogeneous Coordinate Transformation

[+] Author Affiliations
Adam K. Kiss, Daniel Bachrathy, Gabor Stepan

Budapest University of Technology and Economics, Budapest, Hungary

Paper No. DETC2017-67827, pp. V008T12A053; 8 pages
doi:10.1115/DETC2017-67827
From:
  • ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 8: 29th Conference on Mechanical Vibration and Noise
  • Cleveland, Ohio, USA, August 6–9, 2017
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5822-6
  • Copyright © 2017 by ASME

abstract

In this contribution, a chatter detection method is investigated for milling operations. The proposed approach can give not only qualitative condition (stable or unstable), but a quantitative measure of stability. For this purpose, it requires an external excitation of stable machining condition. Transient vibration of the perturbation is captured by means of stroboscopic section, and the corresponding monodromy operator is approximated by its projection to the subspace of the dominant modes. The monodromy matrix is determined with the application of homogeneous coordinate representation. Then, the periodic solution and the dominant characteristic multipliers are calculated and their modulus determines the quantitative measure of stability condition.

Copyright © 2017 by ASME
Topics: Milling

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