Vocal Fold Collision Modeling

Alba Granados, Jonas Brunskog, M. K. Misztal

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    281 Downloads (Pure)

    Abstract

    When vocal folds vibrate at normal speaking frequencies, collisions occurs. The numerics and formulations behind a position-based continuum model of contact is an active field of research in the contact mechanics community. In this paper, a frictionless three-dimensional finite element model of the vocal fold collision is proposed, which incorporates different procedures used in contact mechanics and mathematical optimization theories. The penalty approach and the Lagrange multiplier method are investigated. The contact force solution obtained by the penalty formulation is highly dependent on the penalty parameter value. Furthermore, the Lagrange approach shows poor results with regard to instantaneous contact force estimation. This motivates the use of an Augmented Lagrange approach to regularize the Lagrange contact force solution. Finally, the effect of the interpenetration volume on contact force and contact area computations is illustrated.
    Original languageEnglish
    Title of host publicationProceedings of the 9th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Application
    Number of pages4
    PublisherFirenze University Press
    Publication date2015
    Publication statusPublished - 2015
    EventThe 11th Pan-European Voice Conference (PEVOC 2015) and the 9th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Application (MAVEBA 2015) - Florence, Italy
    Duration: 31 Aug 20154 Sept 2015
    http://pevoc-maveba.dinfo.unifi.it/

    Conference

    ConferenceThe 11th Pan-European Voice Conference (PEVOC 2015) and the 9th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Application (MAVEBA 2015)
    Country/TerritoryItaly
    CityFlorence
    Period31/08/201504/09/2015
    Internet address

    Fingerprint

    Dive into the research topics of 'Vocal Fold Collision Modeling'. Together they form a unique fingerprint.

    Cite this