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Biomedical Applications of Vibration and Acoustics in Therapy, Bioeffect and Modeling
ISBN-10:
0791802755
ISBN:
9780791802755
No. of Pages:
350
Publisher:
ASME Press
Publication date:
2008
eBook Chapter
10 An Investigation into the Dynamic Response of Vocal Folds
By
Hai Lan
,
Hai Lan
Institute of Biomedical Technologies (IBTec),
Auckland University of Technology
, Auckland
, New Zealand
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Ahmed Al-Jumaily
,
Ahmed Al-Jumaily
Institute of Biomedical Technologies (IBTec),
Auckland University of Technology
, Auckland
, New Zealand
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Ali Mirnajafi
,
Ali Mirnajafi
Edwards Life Sciences
, Edwards Way, Irvine, CA 92614
, USA
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Roy Nates
Roy Nates
Institute of Biomedical Technologies (IBTec),
Auckland University of Technology
, Auckland
, New Zealand
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Page Count:
26
-
Published:2008
Citation
Lan, H, Al-Jumaily, A, Mirnajafi, A, & Nates, R. "An Investigation into the Dynamic Response of Vocal Folds." Biomedical Applications of Vibration and Acoustics in Therapy, Bioeffect and Modeling. Ed. Al-Jumaily, A, & Alizad, A. ASME Press, 2008.
Download citation file:
In phonation process, the vocal folds collision during glottal closure is considered to be a risk factor for pathological development. This research is aimed at designing a dependable finite element (FE) model of the vocal folds for frequency and dynamics analysis and for calculating the impact stress on the vocal folds during glottal closure. A three-dimensional model with irregular geometry and a layered structure has been designed. The measured viscoelastic properties of the vocal-fold mucosa and the transverse isotropic elastic properties of the vocal fold muscle are applied in the model. The frequency and dynamic characters are presented using Abaqus™...
Abstract
10.1 Background
10.2 Anatomy of the Vocal Folds
10.3 Finite Element Model
10.3.1 Geometrical Model
10.3.2 Materials Definition in the Model
10.3.3 Contact Problem
10.3.4 Assembled Model
10.3.5 Mesh
10.4 Experiment Investigation
10.4.1 Modal Analysis and Testing
10.4.2 Larynx Model
10.4.3 Experimental Set-Up
10.4.4 Experiment Results
10.5 Fe Model Validation
10.5.1 Experiment Validation
10.5.2 Comparison With In Vivo Test
10.6 Results Analysis
10.6.1 Frequency Analysis
10.6.2 Dynamic Response
10.6.3 Dynamic Analysis
10.7 Conclusions
References
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