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Control of Spatial Wave Profiles in Finite Lattices of Repelling Magnets

  • SUNY Buffalo

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We report on the control of the spatial wave profile of a chain of lumped magnets arranged in a repelling configuration. The spatial wave attributes are controlled by varying the spacing between the magnets, which in turn affects the equivalent stiffness of the lattice. The dispersion relation for an infinite lattice is first derived for linearized equations of motion to provide an insight into the effect of varying the lattice spacing on the wavelength and sonic speed. The unit cell analysis is verified using analytical spatial wave profiles for a finite magnetic lattice. We conclude the paper with an analytical derivation of a fuel/time optimal controller designed to control the spacing between the magnets, which is necessary for implementation aspects.

Original languageEnglish
Article number111015
JournalJournal of Dynamic Systems, Measurement and Control, Transactions of the ASME
Volume141
Issue number11
DOIs
StatePublished - Nov 2019

Keywords

  • dispersion analysis
  • magnetic lattice
  • wave control

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