Abstract

Lumped elements models of vocal folds are relevant research tools that can enhance the understanding of the pathophysiology of many voice disorders. In this paper, we use the port-Hamiltonian framework to obtain an energy-based model for the fluid–structure interactions between the vocal folds and the airflow in the glottis. The vocal fold behavior is represented by a three-mass model and the airflow is described as a fluid with irrotational flow. The proposed approach allows to go beyond the usual quasi-steady one-dimensional flow assumption in lumped mass models. The simulation results show that the proposed energy-based model successfully reproduces the oscillations of the vocal folds, including the collision phenomena, and it is useful to analyze the energy exchange between the airflow and the vocal folds.

中文翻译：

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基于能量的声带流体结构模型

 抽象的

声带集总元件模型是相关的研究工具，可以增强对许多声音疾病病理生理学的理解。在本文中，我们使用端口哈密尔顿框架来获得声带和声门气流之间的流固相互作用的基于能量的模型。声带行为由三质量模型表示，气流被描述为具有无旋流的流体。所提出的方法可以超越集总质量模型中通常的准稳态一维流动假设。仿真结果表明，所提出的基于能量的模型成功地再现了声带的振荡，包括碰撞现象，并且有助于分析气流与声带之间的能量交换。