MECHANICS OF VOCAL-FOLD VIBRATION
MECHANICS OF VOCAL-FOLD VIBRATION
复制标题
DOI：
10.1121/1.381230
复制
发表时间：
1976-01-01
影响因子：
2.4
通讯作者：
TITZE, IR
中科院分区：
文献类型：
--
作者：
TITZE, IR
人类声带被视为连续的、横向各向同性的、有界的介质。应用粘弹性理论来制定声带组织内正弦振荡的应力、应变、声门组织阻抗和传播特性。组织的不可压缩性产生了双调和微分方程，其解代表了常见观察到的振动模式。计算了组织中耗散的能量和相关的阻尼因子。计算组织的模式阻抗并评估系统的集总模型近似值。通常的质量弹簧模型在某些重要情况下是不够的，特别是在声带闭合期间和发生垂直相位差的模式中。
The human vocal fold was treated as a continuous, transversally isotropic, bounded medium. The theory of viscoelasticity was applied to formulate the stresses, strains, glottal tissue impedance and propagation characteristics for sinusoidal oscillation within the vocal-fold tissues. Incompressibility of the tissues led to a biharmonic differential equation, the solution of which represented commonly observed modes of vibration. The energy dissipated in the tissues and the associated damping factors were calculated. Mode impedances of the tissues were calculated and lumped-model approximations of the system evaluated. The usual mass-spring models were inadequate in certain important cases, especially during vocal-fold closure and for modes in which vertical phase differences occur.