Hutchins, D, Yang, J, Thomas, P et al. (6 more authors) (2015) Generation of Impulses from Single Frequency Inputs Using Non-linear Propagation in Spherical Chains. In: Physics Procedia. Proceedings of the 2015 ICU International Congress on Ultrasonics, 10-15 May 2015, Metz, France. Elsevier , pp. 131-134.
Abstract
This paper investigates the use of chains of spheres to produce impulses. An ultrasonic horn is used to generate high amplitude sinusoidal signals. These are then input into chains of spheres, held together using a minimal force. The result is a non-linear, dispersive system, within which solitary waves can exist. The authors have discovered that resonances can be created, caused by the multiple reflection of solitary waves within the chain. The multiply-reflecting impulses can have a wide bandwidth, due to the inherent nonlinearity of the contact between spheres. It is found that the effect only occurs for certain numbers of spheres in the chain for a given input frequency, a result of the creation of a nonlinear normal mode of resonance. The resulting impulses have many applications, potentially creating high amplitude impulses with adjustable properties, depending on both the nature and number of spheres in the chain, and the frequency and amplitude of excitation
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015, The Author(s). Published Open Access with Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
Keywords: | Spherical chains; non-linearity; impulses |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Jul 2017 14:09 |
Last Modified: | 03 Jul 2017 14:09 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.phpro.2015.08.059 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101052 |