Optimized dynamic decoupling in active vibration isolation

Marcel F. Heertjes, Arjan J.P. van Engelen, Maarten Steinbuch

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

1 Citation (Scopus)

Abstract

To improve performances of a multi-input multi-output (MIMO) active vibration isolation system, the possibilities of dynamic decoupling are studied. This to avoid spill-over of disturbances from one controlled direction toward another via cross-coupling. The decoupling structure consists of two parts. For course decoupling a set of low-pass filters is selected and tuned about the coupled suspension-mode resonances. For fine decoupling a finite impulse response (FIR) decoupling structure is added for machine-specific tunings. The FIR coefficients are obtained by data-based optimization in which perturbed-parameter experiments are conducted to obtain the required gradients. The optimization maps the single-input single-output (SISO) low-pass filter structure onto a MIMO dynamic decoupling. Its effect is demonstrated on a 6-DOF professional isolation system both in time- and frequency-domain.

Original languageEnglish
Title of host publication5th IFAC Symposium on Mechatronic Systems, MECHATRONICS 2010 - Proceedings
PublisherIFAC Secretariat
Pages293-298
Number of pages6
Volume43
Edition18
ISBN (Print)9783902661760
DOIs
Publication statusPublished - 1 Jan 2010
Event5th IFAC Symposium on Mechatronic Systems, MECHATRONICS 2010 - Cambridge, MA, United States
Duration: 13 Sep 201015 Sep 2010

Conference

Conference5th IFAC Symposium on Mechatronic Systems, MECHATRONICS 2010
CountryUnited States
CityCambridge, MA
Period13/09/1015/09/10

Keywords

  • (active) vibration isolation
  • Dynamic decoupling
  • Gauss-Newton method
  • Lyapunov stability
  • MIMO motion control systems
  • Optimization
  • Perturbation method

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