NDLI: Instability Boundaries of a Vocal Fold Modelled as a Flexibly Supported Rigid Body Vibrating in a Channel Conveying Fluid

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Hora´cˇek, J. Sˇvec, J. G.
Copyright Year	2002
Abstract	A generalised leakage-flow induced vibration model for vibration onset of the vocal folds in the airflow is presented. Especially the influence of various physical properties of the vocal folds (e.g., their shape, adduction, mass and mass distribution) on the thresholds of instability is studied. A vibrating element with two-degrees-of-freedom (rotation and translation) placed on an elastic foundation and vibrating in the wall of a channel conveying air is used to approximate the vocal fold. The inviscid incompressible 1-D fluid flow theory is used. A generally defined shape of the vocal fold is considered for expressing the unsteady aerodynamic forces in the glottis. The parameters of the mechanical part of the model, i.e., the mass, stiffness and damping matrices are related to the known geometry, size and material density of the vocal folds as well as to the fundamental natural frequencies and damping known from the experiments. The numerical solution yields the natural frequencies, damping, mode shapes of vibration and the instability thresholds of the system. The calculated vibration and stability characteristics appear to be close to the known physiological data. The developed aeroelastic model is able to provide qualitative information, e.g., on conditions for a soft voice onset or for breathy voicing and could be helpful also in design of artificial voice prosthesis.
Sponsorship	Applied Mechanics Division
Starting Page	1043
Ending Page	1054
Page Count	12
File Format	PDF
ISBN	0791836592
DOI	10.1115/IMECE2002-32199
Volume Number	5th International Symposium on Fluid Structure Interaction, Aeroelasticity, and Flow Induced Vibration and Noise
Conference Proceedings	ASME 2002 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2002-11-17
Publisher Place	New Orleans, Louisiana, USA
Access Restriction	Subscribed
Subject Keyword	Biomechanics of voice Flutter Leakage-flow induced vibration Divergence Aeroelastic instabilities Damping Prostheses Vibration Stability Fluid dynamics Aerodynamics Fluid-dynamic forces Density Rotation Biomechanics Design Geometry Mode shapes Fluids Vocal cords Air flow Flutter (aerodynamics) Physiology Stiffness Shapes Leakage flows
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A Parameter Study of Leakage-Flow-Induced Vibrations

Identification of the Stability Margin Between Safe Operation and the Onset of Blade Flutter

Voice Feature Selection to Improve Performance of Machine Learning Models for Voice Production Inversion

Numerical Investigation of Labyrinth Seal Aeroelastic Stability

Aeroelastic Flutter Analysis of Linear Cascade Blades: STC5

Aeroelastic Stability of Wide Webs and Narrow Ribbons

Energy Harvesting From Aeroelastic Instabilities for Highly Flexible Aircraft

Self-Excited Blade Vibration Experimentally Investigated in Transonic Compressors: Rotating Instabilities and Flutter

Studies on Stability of Pipes Conveying Fluid : The Effect of a Lumped Mass and Damping

Instability Boundaries of a Vocal Fold Modelled as a Flexibly Supported Rigid Body Vibrating in a Channel Conveying Fluid

Similar Documents

A Parameter Study of Leakage-Flow-Induced Vibrations

Identification of the Stability Margin Between Safe Operation and the Onset of Blade Flutter

Voice Feature Selection to Improve Performance of Machine Learning Models for Voice Production Inversion

Numerical Investigation of Labyrinth Seal Aeroelastic Stability

Aeroelastic Flutter Analysis of Linear Cascade Blades: STC5

Aeroelastic Stability of Wide Webs and Narrow Ribbons

Energy Harvesting From Aeroelastic Instabilities for Highly Flexible Aircraft

Self-Excited Blade Vibration Experimentally Investigated in Transonic Compressors: Rotating Instabilities and Flutter

Studies on Stability of Pipes Conveying Fluid : The Effect of a Lumped Mass and Damping

Instability Boundaries of a Vocal Fold Modelled as a Flexibly Supported Rigid Body Vibrating in a Channel Conveying Fluid