论文标题
研究全身域中的人类发音
Study of human phonation in a full body domain
论文作者
论文摘要
使用直接数值模拟，使用成熟域以二维研究了人类声音的产生和传播。声带中的流体/空气被建模为可压缩且粘性的流体，与非线性的粘弹性声折（VF）相互作用。 VF组织材料的性能是多层的，具有变化的刚度，并且在二次有限元代码中使用并实现了有限晶体模型。流体 - 固体结构域通过边界拟合界面耦合，并利用基于泊松方程的网格变形方法。全身结构域包括近VF区域，声带，简化的软pa和嘴，并延伸到声学远场中。已经采用了一种基于恒定亚磁体积速度的准二维公式的新型流入边界条件，与VF运动有关。测得的声压水平（SPL）是现实的，我们分析了它们与VF动力学以及声门和声带几何形状的联系。
The Generation and propagation of the human voice is studied in two-dimensions using a full-body domain, using direct numerical simulation. The fluid/air in the vocal tract is modeled as a compressible and viscous fluid interacting with the non-linear, viscoelastic vocal folds (VF). The VF tissue material properties are multi-layered, with varying stiffness, and a finite-strain model is utilized and implemented in a quadratic finite element code. The fluid-solid domains are coupled through a boundary-fitted interface and utilize a Poisson equation-based mesh deformation method. The full-body domain includes the near VF region, the vocal tract, a simplified model of the soft palate and mouth, and extends out into the acoustic far-field. A new kind of inflow boundary condition based upon a quasi-one-dimensional formulation with constant sub-glottal volume velocity, which is linked to the VF movement, has been adopted. The sound pressure levels (SPL) measured are realistic and we analyze their connection to the VF dynamics and glottal and vocal tract geometries.
