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Updated: Jun 21, 2026
10:16
Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
Published on: December 2, 2011
Liquid accumulation in vibrating vocal fold tissue: a simplified model based on a fluid-saturated porous solid theory
Chao Tao1, Jack J Jiang, Lukasz Czerwonka
1Department of Surgery, Division of Otolaryngology Head and Neck Surgery, University of Wisconsin Medical School, Madison, Wisconsin 53792-7375, USA.
Journal of Voice : Official Journal of the Voice Foundation
|August 8, 2009
Summary
Vocal fold vibration causes excess fluid accumulation in the tissue, especially at higher amplitudes and frequencies. This finding supports the fluid accumulation hypothesis for vocal nodule formation.
Area of Science:
- Biomechanics
- Biophysics
- Acoustic Science
Background:
- The human vocal fold's complex structure and fluid dynamics are crucial for voice production.
- Existing models often simplify vocal fold tissue as continuous elastic material, potentially overlooking fluid-porous interactions.
Purpose of the Study:
- To develop a more general mathematical model for vocal fold tissue vibration.
- To investigate the role of fluid-saturated porous tissue dynamics in vocal fold mechanics.
- To explore the relationship between tissue vibration and fluid accumulation, potentially explaining vocal nodule formation.
Main Methods:
- Formulated mathematical equations based on the theory of fluid-saturated porous solids.
- Developed a generalized model for vocal fold tissue, accounting for fluid-porous interactions.
- Analytically solved the vibration of one-dimensional fibers within the vocal fold model under small-amplitude assumptions.
Main Results:
- Vocal fold vibration leads to excess liquid accumulation in the midmembranous region.
- The extent of liquid accumulation is directly proportional to vibratory amplitude and frequency.
- Predicted liquid distribution patterns correlate with clinically observed vocal nodule locations.
Conclusions:
- The fluid-saturated porous tissue model offers a more comprehensive description of vocal fold mechanics than continuous elastic models.
- Tissue vibration-induced fluid accumulation provides theoretical support for the hypothesis of vocal nodule formation.
- This research offers insights into the pathogenesis of vocal fold pathologies.
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