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Study of the Transient Response of Tympanic Membranes Under Acoustic Excitation

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Book cover Mechanics of Biological Systems and Materials, Volume 4

Abstract

Characterization of the transient response of the human Tympanic Membrane (TM) subjected to impulse acoustic excitation is important in order to further understand the mechanics of hearing. In this paper, we present results of our initial investigations of the transient response of an artificial fully-constrained circular membrane as a simplified model of the TM. Two different optical methods used in our investigations are Laser Doppler Vibrometery (LDV) and Pulsed Double-Exposure Digital Holography (PDEDH) for single-point and full-field-of-view measurements of displacements, respectively. Applying Hilbert Transformation methods to the measured displacements allows determination of the transient characteristics of the membrane, including damping ratios and time constants, which are also computed and compared with corresponding FEM models. We expect to use this method in the investigation of the transient response of TM of specific species.

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Acknowledgements

This work has been funded by the National Institute on Deafness and Other Communication Disorders (NIDCD), the National Institute of Health (NIH), the Massachusetts Eye and Ear Infirmary (MEEI), and the Mittal Fund. The authors also gratefully acknowledge the support of the NanoEngineering, Science, and Technology (NEST) program at the Mechanical Engineering Department, Worcester Polytechnic Institute.

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Authors and Affiliations

  1. Center for Holographic Studies and Laser micro-mechaTronics (CHSLT), Worcester, USA

    Morteza Khaleghi, Ivo Dobrev, Ellery Harrington & Cosme Furlong

  2. Mechanical Engineering Department, Worcester Polytechnic Institute, Worcester, MA, 01609, USA

    Morteza Khaleghi, Ivo Dobrev, Ellery Harrington & Cosme Furlong

  3. Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA, USA

    Cosme Furlong & John J. Rosowski

  4. Department of Otology and Laryngology, Harvard Medical School, Boston, MA, USA

    Cosme Furlong & John J. Rosowski

Authors
  1. Morteza Khaleghi
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  2. Ivo Dobrev
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  3. Ellery Harrington
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  4. Cosme Furlong
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  5. John J. Rosowski
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Corresponding author

Correspondence to Morteza Khaleghi .

Editor information

Editors and Affiliations

  1. McGill University, Montreal, Canada

    François Barthelat

  2. Purdue University, West Lafayette, USA

    Pablo Zavattieri

  3. State University of New York, Stony Brook, USA

    Chad S. Korach

  4. Auburn University, Auburn, USA

    Barton C. Prorok

  5. Rice University, Houston, USA

    K. Jane Grande-Allen

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© 2014 The Society for Experimental Mechanics, Inc.

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Khaleghi, M., Dobrev, I., Harrington, E., Furlong, C., Rosowski, J.J. (2014). Study of the Transient Response of Tympanic Membranes Under Acoustic Excitation. In: Barthelat, F., Zavattieri, P., Korach, C., Prorok, B., Grande-Allen, K. (eds) Mechanics of Biological Systems and Materials, Volume 4. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-00777-9_1

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  • DOI: https://doi.org/10.1007/978-3-319-00777-9_1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-00776-2

  • Online ISBN: 978-3-319-00777-9

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