Cooper D S, Titze I R
J Speech Hear Res. 1985 Jun;28(2):207-15. doi: 10.1044/jshr.2802.207.
The power dissipated in the vocal folds during phonation results from viscous loss in the fold tissues and can be estimated on the basis of a simplified representation of the geometry and movement of the folds. Assuming this power is converted into heat, it combines with the effects of muscle contraction, blood perfusion, and thermal conduction to the surface of the folds to determine fold temperature. To isolate the thermomechanical source of heat, the vocal folds of excised larynges were vibrated vertically over a range of frequencies and amplitudes, while the temperature rise in them was measured by inserted fine-wire thermocouples. The temperature rise observed was somewhat smaller than that predicted. This may be partly accounted for by convective and evaporative cooling of the vocal fold as it moved relative to the ambient air. Future studies should consider the time course of heating and vocal fold geometry in more detail.
发声时声带中耗散的功率源于声带组织中的粘性损失，并且可以基于对声带几何形状和运动的简化表示来估算。假设该功率转化为热量，它与肌肉收缩、血液灌注以及向声带表面的热传导的影响相结合，以确定声带温度。为了分离热机械热源，将切除的喉的声带在一系列频率和振幅范围内垂直振动，同时通过插入的细金属丝热电偶测量其中的温度升高。观察到的温度升高略小于预测值。这可能部分是由于声带相对于周围空气运动时的对流和蒸发冷却所致。未来的研究应更详细地考虑加热的时间过程和声带几何形状。
