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The effect of boundary conditions on resonant ultrasonic spherical chains
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Akanji, Omololu, Yang, J., Hutchins, David A., Thomas, P. J., Davis, L. A. J., Harput, S., Freear, S., Gelat, P. and Saffari, N. (2016) The effect of boundary conditions on resonant ultrasonic spherical chains. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 63 (11). pp. 1957-1966. doi:10.1109/TUFFC.2016.2576563
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Official URL: http://dx.doi.org/10.1109/TUFFC.2016.2576563
Abstract
The response of a resonant chain of spheres to changes in holder material and pre-compression is studied at ultrasonic frequencies. The system is found to be very sensitive to these parameters, with the creation of impulsive waveforms from a narrow bandwidth input seen only for certain chain lengths and holder materials. In addition, careful experiments were performed using known amounts of pre-compression force, using a calibrated stylus arrangement. At negligible pre-compression levels, impulses were generated within the chain, which were then suppressed by increased pre-compression. This was accompanied by large changes in propagation velocity as the system gradually changes from being strongly nonlinear to being more linear. Simulations using a discrete model for the motion of each sphere agree well with experimental data.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Ultrasonics | ||||||||
| Journal or Publication Title: | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control | ||||||||
| Publisher: | Institute of Electrical and Electronics Engineers | ||||||||
| ISSN: | 0885-3010 | ||||||||
| Official Date: | November 2016 | ||||||||
| Dates: |
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| Date of first compliant deposit: | 2 June 2016 | ||||||||
| Volume: | 63 | ||||||||
| Number: | 11 | ||||||||
| Page Range: | pp. 1957-1966 | ||||||||
| DOI: | 10.1109/TUFFC.2016.2576563 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||||||
| Grant number: | EP/K030159/1 | ||||||||
| Related URLs: |
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