Viscoelastic shear properties of human vocal fold mucosa: Theoretical characterization based on constitutive modeling
Viscoelastic shear properties of human vocal fold mucosa: Theoretical characterization based on constitutive modeling
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DOI：
10.1121/1.428354
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发表时间：
2000-01-01
影响因子：
2.4
通讯作者：
Titze, IR
中科院分区：
文献类型：
--
作者：
Chan, RW;Titze, IR
人类声带粘膜（盖）的粘弹性剪切特性先前被测量为频率的函数[Chan和Titze， J. Acoust]。第106卷，2008-2021(1999)]。但数据仅在0.01-15赫兹的频率范围内获得，比声带振荡的典型频率（100赫兹的数量级）低一个数量级。本研究基于两种粘弹性理论(1)准线性粘弹性理论，广泛用于生物组织粘弹性特性的本构建模[Fung， Biomechanics (Springer-Verlag, New York, 1993), pp. 277-292];(2)通常用于聚合物材料流变建模的分子（统计网络）理论[Zhu et al: J. Biomech. 24, 1007-1018(1991)]。采用基于两种理论的弹性和粘性剪切模量、动态黏度和阻尼比解析表达式与特定模型参数对经验数据进行曲线拟合。结果表明，理论预测与经验数据相当吻合，允许数据的参数描述及其对发声频率的外推。(C) 2000美国声学学会。[s0001 - 4966(99) 06512 - 1]。
The viscoelastic shear properties of human vocal fold mucosa (cover) were previously measured as a function of frequency [Chan and Titze, J. Acoust. Sec, Am. 106, 2008-2021 (1999)]. but data were obtained only in a frequency range of 0.01-15 Hz, an order of magnitude below typical frequencies of vocal fold oscillation ton the order of 100 Hz). This study represents an attempt to extrapolate the data to higher frequencies based on two viscoelastic theories, (1) a quasilinear viscoelastic theory widely used for the constitutive modeling of the viscoelastic properties of biological tissues [Fung, Biomechanics (Springer-Verlag, New York, 1993), pp. 277-292], and (2) a molecular (statistical network) theory commonly used for the rheological modeling of polymeric materials [Zhu et al:, J. Biomech. 24, 1007-1018 (1991)]. Analytical expressions of elastic and viscous shear moduli, dynamic viscosity, and damping ratio based on the two theories with specific model parameters were applied to curve-fit the empirical data. Results showed that the theoretical predictions matched the empirical data reasonably well, allowing for parametric descriptions of the data and their extrapolations to frequencies of phonation. (C) 2000 Acoustical Society of American. [S0001-4966(99)06512-1].