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Sonar properties of the lower jaw of the Atlantic bottlenose dolphin (tursiops truncatus)

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posted on 09.08.2013 by S.A. Dible
The primary function of this research project has been to investigate the physical properties of the lower jaw of the Atlantic Bottlenose Dolphin (Tursiops truneatus). This has been achieved through numerical modelling techniques, established physical measurements and modem Laser Doppler Velocity Measurements. During the course of this work some interesting characteristics of the dolphin jaw structure have been discovered. Sound speeds and attenuation levels of the jawbone have been determined and the implications assessed. The geometric array formed by the dolphin teeth of the lower jaw can be used to form an end-fire array which produces a beam pattern similar to those of the dolphin. The geometric array has also been analysed for its passive acoustical properties, in particular its ability to form acoustic stop bands within the audible range of the dolphin. The results of this research show that the directivity of the dolphin can be reproduced using the morphological features of the lower jaw.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Publisher

© Simon Dible

Publication date

2008

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University

EThOS Persistent ID

uk.bl.ethos.497207

Language

en

Exports

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Keyword(s)

Exports