Analysis of solitary wave impulses in granular chains using ultrasonic excitation
Yang, J., Hutchins, D.A., Akanji, O., Thomas, P.J., Davis, L.A.J., Harput, S., Gelat, P., Freear, S. and Saffari, N. (2016). Analysis of solitary wave impulses in granular chains using ultrasonic excitation. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 93 (063001).
|Authors||Yang, J., Hutchins, D.A., Akanji, O., Thomas, P.J., Davis, L.A.J., Harput, S., Gelat, P., Freear, S. and Saffari, N.|
The propagation of broad bandwidth solitary wave impulses, generated within granular chains by narrow bandwidth ultrasonic excitation, is studied in detail. Theoretical predictions are compared to experimental results. It is demonstrated that the observed effects result from a sum of a solitary wave traveling out from the source with a wave that reflects from the far end of the chain. It is shown that this combination, when used with an excitation in the form of a long-duration tone burst, encourages the generation of multiple impulses with a characteristic periodicity. This study shows that the properties of the chain structure and the excitation can be adjusted so as to generate ultrasonic solitary wave impulses with a high amplitude and known frequency content, which are of interest in applications such as biomedical ultrasound.
|Journal||Physical Review E - Statistical, Nonlinear, and Soft Matter Physics|
|Journal citation||93 (063001)|
|Publisher||American Physical Society|
|Digital Object Identifier (DOI)||doi:10.1103/PhysRevE.93.063002|
|Web address (URL)||https://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.063002|
|Online||10 Jun 2016|
|Publication process dates|
|Accepted||21 Apr 2016|
|Deposited||13 Aug 2019|
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