Farahani Mehrdad H, Zhang Zhaoyan
Department of Head and Neck Surgery, School of Medicine, University of California Los Angeles, 31-24 Rehab Center, 1000 Veteran Avenue, Los Angeles, California 90095
J Acoust Soc Am. 2014 Nov;136(5):EL369-75. doi: 10.1121/1.4898743.
Recent studies reported the formation of intraglottal vortices for medium and high subglottal pressures in excised-larynx experiments, and hypothesized that the suction force created by these vortices might affect vocal fold vibration. However, high subglottal pressures often lead to large vocal fold elastic recoil forces, and it is unclear if the vortex-induced suction force is large enough compared with the elastic recoil force to have noticeable effects on vocal fold vibration. In this study, the validity of this hypothesis was examined using a computational model. The results suggest that intraglottal vortices might only have small effects on vocal fold vibration.
最近的研究报道了在切除喉部实验中,中等和高声门下压力下声门内漩涡的形成,并推测这些漩涡产生的吸力可能会影响声带振动。然而,高声门下压力通常会导致较大的声带弹性回缩力,目前尚不清楚与弹性回缩力相比,漩涡诱导的吸力是否足够大,从而对声带振动产生显著影响。在本研究中,使用计算模型检验了这一假设的有效性。结果表明,声门内漩涡可能对声带振动只有微小影响。