Geng Biao, Xue Qian, Zheng Xudong
Department of Mechanical Engineering, University of Maine, Orono, Maine 04473, USA
J Acoust Soc Am. 2017 Apr;141(4):EL351. doi: 10.1121/1.4978363.
A finite element method based numerical indentation technique was used to quantify the effect of the material stiffness variation and the subglottal convergence angle of the vocal fold on the vertical stiffness difference of the medial surface. It was found that the vertical stiffness difference increased with the increasing subglottal angle, and it tended to saturate beyond a subglottal angle of about 50°. The material stiffness variation could be as important as the subglottal angle depending on the actual material properties.
基于有限元方法的数值压痕技术被用于量化材料刚度变化和声门下收敛角对声带内侧表面垂直刚度差异的影响。研究发现，垂直刚度差异随着声门下角度的增加而增大，并且在声门下角度约为50°之后趋于饱和。根据实际材料特性，材料刚度变化可能与声门下角度同样重要。
