Controlling multistability in coupled systems with soft impacts

P. Brzeski, E. Pavlovskaia, T. Kapitaniak, P. Perlikowski

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18 Citations (Scopus)
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In this paper we present an influence of discontinuous coupling on the dynamics of multistable systems. Our model consists of two periodically forced oscillators that can interact via soft impacts. The controlling parameters are the distance between the oscillators and the difference in the phase of the harmonic excitation. When the distance is large two systems do not collide and a number of different possible solutions can be observed in both of them. When decreasing of the distance, one can observe some transient impacts and then the systems settle down on non-impacting attractor. It is shown that with the properly chosen distance and difference in the phase of the harmonic excitation, the number of possible solutions of the coupled systems can be reduced. The proposed method is robust and applicable in many different systems.
Original languageEnglish
Pages (from-to)118-129
Number of pages12
JournalInternational Journal of Mechanical Sciences
Early online date31 Dec 2016
Publication statusPublished - Jul 2017

Bibliographical note

This work has been supported by Lodz University of Technology own Scholarship Fund (PB) and by Stipend for Young Outstanding Scientists from Ministry of Science and Higher Education of Poland (PP).

PB is supported by the Foundation for Polish Science (FNP).


  • multistability
  • discontinuous coupling
  • control


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