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Multiple attractors in grazing-sliding bifurcations in Filippov-type flows
KTH, School of Engineering Sciences (SCI), Mechanics.
2016 (English)In: IMA Journal of Applied Mathematics, ISSN 0272-4960, E-ISSN 1464-3634, Vol. 81, no 4, 711-722 p.Article in journal (Refereed) Published
Abstract [en]

We describe two examples of three-dimensional Filippov-type flows in which multiple attractors are created by grazing-sliding bifurcations. To the best of our knowledge these are the first examples to show multistability due to a grazing-sliding bifurcation in flows. In both examples, we identify the coefficients of the normal form map describing the bifurcation, and use this to find parameters with the desired behaviour. In the first example this can be done analytically, whilst the second is a dry-friction model and the identification is numerical. This explicit correspondence between the flows and a truncated normal form map reveals an important feature of the sensitivity of the predicted dynamics: the scale of the variation of the bifurcation parameter has to be very carefully chosen. Although no detailed analysis is given, we believe that this may indicate a much greater sensitivity to parameters than experience with smooth flows might suggest. We conjecture that the grazing-sliding bifurcations leading to multistability remained unreported in the literature due to this sensitivity to parameter variations.

Place, publisher, year, edition, pages
2016. Vol. 81, no 4, 711-722 p.
Keyword [en]
Explicit example, Filippov flows, Grazing-sliding, Multiple attractors, Dynamical systems, Sensitivity analysis, Bifurcation parameter, Filippov, Important features, Sensitivity to parameters, Sliding bifurcation, Bifurcation (mathematics)
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-195132DOI: 10.1093/imamat/hxw014ISI: 000384931100008Scopus ID: 2-s2.0-84988874569OAI: oai:DiVA.org:kth-195132DiVA: diva2:1044836
Note

Funding Details: SF, Simons Foundation. QC 20161107

Available from: 2016-11-07 Created: 2016-11-02 Last updated: 2016-11-11Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf