Yang, J, Hutchins, DA, Akanji, O et al. (6 more authors) (2015) Molecular dynamics simulation of nonlinear waves in granular media. In: 2015 IEEE International Ultrasonics Symposium (IUS). , 21-24 Oct 2015, Taipei, Taiwan. IEEE ISBN 978-1-4799-8182-3
Abstract
Discrete dynamic equations of spheres in granular chains have been developed so as to simulate the evolution of acoustic signals in these media. The model was built based on Hertzian laws as well as the dissipation effect within the system, and the contact dynamics involving both compression and separation between spheres was also modelled. A molecular dynamics simulation method using the Velocity Verlet algorithm was developed to solve the equations. The strongly nonlinear solitary wave impulses are predicted by the numerical calculations and match the experimental results well. The simulation system has been used as a design tool to determine the optimal chain structure in term of the bandwidth and frequencies which are required within the output impulses. The results exhibit great potential in biomedical applications.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | granular chain; Velocity Verlet algorithm; nonlinear waves |
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: | 26 Jul 2016 13:28 |
Last Modified: | 16 Jan 2018 15:08 |
Published Version: | http://doi.org/10.1109/ULTSYM.2015.0451 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/ULTSYM.2015.0451 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101041 |