|Publisher DOI:||10.1007/978-3-319-74280-9_18||Title:||Solitons in cyclic and symmetric structures||Language:||English||Authors:||Fontanela, Filipe
|Issue Date:||2019||Source:||Conference Proceedings of the Society for Experimental Mechanics Series (1): 175-178 (2019)||Journal or Series Name:||Conference Proceedings of the Society for Experimental Mechanics Series||Conference:||36th IMAC, A Conference and Exposition on Structural Dynamics||Abstract (english):||© The Society for Experimental Mechanics, Inc. 2019. This research focuses on localised states arising from modulationally unstable plane waves in non-conservative cyclic and symmetric structures. The main application is on vibrations of bladed-disks of aircraft engines experiencing nonlinear effects, such as large displacements, friction dissipation, and/or complex fluid-structure interactions. The investigation is based on a minimal model composed of a chain of linearly damped Duffing oscillators under external travelling wave excitation. The computed results are based on two strategies: (1) a Non-Linear Schrödinger Equation (NLSE) approximation; and (2) the periodic and quasi-periodic Harmonic Balance Methods (HBM). In both cases, the results show that unstable plane waves may self-modulate, leading to stable and unstable single and multiple solitons configurations.||URI:||http://hdl.handle.net/11420/2101||ISBN:||9783319742793||ISSN:||2191-5644||Institute:||Strukturdynamik M-14||Type:||InProceedings (Aufsatz / Paper einer Konferenz etc.)|
|Appears in Collections:||Publications without fulltext|
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