Travelling and standing envelope solitons in discrete non-linear cyclic structures
File(s)paper_soliton_in_cyclic_struct_rev_2_v1.pdf (1.98 MB)
Accepted version
Author(s)
Grolet, A
Hoffmann, N
Thouverez, F
Schwingshackl, C
Type
Journal Article
Abstract
Envelope solitons are demonstrated to exist in non-linear discrete structures with cyclic symmetry. The analysis is based on the Non-Linear Schrodinger Equation for the weakly non-linear limit, and on numerical simulation of the fully non-linear equations for larger amplitudes. Envelope solitons exist for parameters in which the wave equation is focussing and they have the form of shape-conserving wave packages propagating roughly with group velocity. For the limit of maximum wave number, where the group velocity vanishes, standing wave packages result and can be linked via a bifurcation to the non-localised non-linear normal modes. Numerical applications are carried out on a simple discrete system with cyclic symmetry which can be seen as a reduced model of a bladed disk as found in turbo-machinery.
Date Issued
2016-03-17
Date Acceptance
2016-02-27
Citation
Mechanical Systems and Signal Processing, 2016, 81, pp.75-87
ISSN
0888-3270
Publisher
Elsevier
Start Page
75
End Page
87
Journal / Book Title
Mechanical Systems and Signal Processing
Volume
81
Copyright Statement
© 2016 Elsevier Ltd. All rights reserved. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Acoustics
0905 Civil Engineering
0913 Mechanical Engineering
0915 Interdisciplinary Engineering
Publication Status
Published