J
Jeffrey J. Kowtko
Researcher at University of Illinois at Urbana–Champaign
Publications - 7
Citations - 386
Jeffrey J. Kowtko is an academic researcher from University of Illinois at Urbana–Champaign. The author has contributed to research in topics: Nonlinear system & Nonlinear resonance. The author has an hindex of 5, co-authored 7 publications receiving 353 citations.
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Journal ArticleDOI
Theoretical and experimental study of multimodal targeted energy transfer in a system of coupled oscillators
Gaëtan Kerschen,Gaëtan Kerschen,Jeffrey J. Kowtko,D. Michael McFarland,Lawrence A. Bergman,Alexander F. Vakakis,Alexander F. Vakakis +6 more
TL;DR: In this article, a two-degree-of-freedom primary structure is transferred from a nonlinear energy sink to a non-linear primary structure via excitation of appropriate periodic and quasi-periodic orbits.
Journal ArticleDOI
Experimental demonstration of transient resonance capture in a system of two coupled oscillators with essential stiffness nonlinearity
Gaëtan Kerschen,D. Michael McFarland,Jeffrey J. Kowtko,Young S. Lee,Lawrence A. Bergman,Alexander F. Vakakis +5 more
TL;DR: In this paper, it is shown that during transient resonance capture the two oscillators are in a state of resonance, the frequency of which varies with time, which leads to targeted nonlinear energy transfer.
Journal ArticleDOI
Experimental investigation of targeted energy transfers in strongly and nonlinearly coupled oscillators
D. Michael McFarland,Gaëtan Kerschen,Jeffrey J. Kowtko,Young S. Lee,Lawrence A. Bergman,Alexander F. Vakakis +5 more
TL;DR: In this paper, the transient dynamics of an impulsively loaded linear oscillator coupled to a lightweight nonlinear energy sink were investigated and it was shown that a significant portion of the total input energy can be absorbed and dissipated in this oscillator.
Journal ArticleDOI
Energy Transfers in a System of Two Coupled Oscillators with Essential Nonlinearity: 1:1 Resonance Manifold and Transient Bridging Orbits
Gaëtan Kerschen,Gaëtan Kerschen,Alexander F. Vakakis,Young S. Lee,D. Michael McFarland,Jeffrey J. Kowtko,Lawrence A. Bergman +6 more
TL;DR: In this article, the authors highlight and explain the vigorous energy transfers that may take place in a linear oscillator weakly coupled to an essentially nonlinear attachment, termed a nonlinear energy sink.
Proceedings ArticleDOI
Experimental Investigation of Targeted Energy Transfers in Strongly and Nonlinearly Coupled Oscillators
D. M. McFarland,Gaëtan Kerschen,Jeffrey J. Kowtko,Young S. Lee,Lawrence A. Bergman,Alexander F. Vakakis +5 more
TL;DR: In this paper, the transient dynamics of an impulsively loaded linear oscillator coupled to a light-weight nonlinear energy sink were investigated, and it was shown that this seemingly simple system exhibits complicated dynamics, including nonlinear beating phenomena and resonance captures.