基于有限元理论的触觉感知指端模型分析

o investigate the effects of stimuli on the deformations within the soft tissues of fingertips and the dependence of the tactile sensation on the deformations during touching an object, in the present study, a finite element model is developed, based on the physiological structure of the fingertip, to simulate the contact interactions between a fingertip and a sharp wedge. Characteristics of the strain energy density distribution, stress and strain distribution within the soft issues are analyzed. The results show that the soft tissues of fingertips are very sensitive to stimuli, and the spatial distribution characteristics of strain energy density within soft tissues can best explain the evoked charging rate of mechanoreceptors.