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Experimental flow study of modeled regular and irregular glottal closure types

机译:模拟规则和不规则声门闭合类型的实验流程研究

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摘要

The present study shows the results of visualization experiments of the jet formation through a dynamic model of the human vocal folds. The model consists of two counter-rotating, 3D-shaped driven cams covered with a stretched silicone membrane. The 3D contours of the cams are a result of an optimized mapping of observed characteristic clinical vocal fold motions. The experiments are performed by using cams which produce the convex, triangular, rectangular, and concave or sand-glass regular glottis closure types. Two irregular cases are investigated: one of the convex cams is statically closed or opened. These cases cause an oscillating jet which attaches to the ventricular folds and appears to change the part of the aero-acoustic sound spectrum induced by vortices.
机译:本研究显示了通过人类声带动态模型的射流形成的可视化实验结果。该模型由两个反向旋转的3D形从动凸轮组成,并覆盖有拉伸的硅胶膜。凸轮的3D轮廓是对观察到的典型临床人声折叠运动进行优化映射的结果。通过使用产生凸形,三角形,矩形和凹形或沙玻璃规则声门闭合类型的凸轮进行实验。研究了两种不规则情况:凸形凸轮之一静态关闭或打开。这些情况导致振荡射流附着在心室褶皱上,并似乎改变了由涡流引起的航空声波频谱的一部分。

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