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Related Experiment Video

Updated: Jun 2, 2026

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication

Published on: December 2, 2011

Material parameter computation for multi-layered vocal fold models.

Bastian Schmidt¹, Michael Stingl, Günter Leugering

¹Department Mathematics, Applied Mathematics II, University of Erlangen, Martensstr 3, 91058 Erlangen, Germany. Bastian.Schmidt@am.uni-erlangen.de

The Journal of the Acoustical Society of America

|April 12, 2011

Summary

This summary is machine-generated.

Accurately modeling vocal fold mechanics is vital for voice disorder research. This study computed material parameters for synthetic vocal folds using human larynx data, improving model realism for better vocal health treatments.

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Area of Science:

Biomechanics
Biomedical Engineering
Acoustics

Background:

Voice disorders pose a growing health concern, impacting livelihoods dependent on verbal communication.
Realistic physical models of the larynx, using artificial vocal folds, are essential for studying vocal fold vibrations and airflow.
Determining accurate mechanical parameters for these synthetic vocal fold models is challenging yet critical for simulating natural behavior.

Purpose of the Study:

To develop a method for computing material parameters for synthetic vocal fold models.
To enhance the realism and accuracy of physical models used in voice disorder research.
To bridge the gap between simplified manufacturing constraints and the complex biomechanics of human vocal folds.

Main Methods:

Combined experimental and numerical approaches to derive material parameters.
Utilized deformation data from excised human larynges as reference displacements.
Applied material optimization to 3D vocal fold models with isotropic and transverse-isotropic material laws.
Investigated both layered homogeneous and inhomogeneous material models.

Main Results:

The most accurate model exhibited inhomogeneous, transverse-isotropic material properties, though not producible.
A three-layer homogeneous model with computed transverse-isotropic parameters for each layer yielded deformations closely matching human vocal folds.
The study successfully derived material parameters that improve the fidelity of synthetic vocal fold models.

Conclusions:

Computed material parameters significantly enhance the biomechanical realism of synthetic vocal fold models.
The developed methodology provides a pathway for creating more accurate physical models for voice disorder research.
Further research can explore refining producible models based on these findings to advance voice disorder prevention and treatment.