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首页> 外文会议>ASME international mechanical engineering congress and exposition;IMECE'98 >FE analysis of the dynamic characteristics of the human finger PAD in contact w ith objects with/without surface roughness
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FE analysis of the dynamic characteristics of the human finger PAD in contact w ith objects with/without surface roughness

机译：人手指PAD在有/无表面粗糙度的物体接触中的动态特性的有限元分析

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We calulate the transient dynamic response of human finger skin and the distributiomn of the strain energy density at the tactile receptros focusing on the effect of epidermal ridges on tactile sensation. Using a FE (finite element) model which we create rom geometric and material properties measured frm an actual human index finger, we introduce a method of dynamic contact analysis which we use to anlayze the dynamic contact between a finger with/without epidermal ridges and an object with/without surface roughness. It is found that the epidermal ridges increase the sensitivity of the tactile receptors. The presence of epidermal ridges change e ither the distribution patternt or the amplitude of the strain energy density at the tactile recptors. It is also found that the Meissner's coruscles are relatively sensitive for detecting the surface roguness, whereeas Merkel's discs are relatively sensitive for detecting indentatiions in objects.
机译：我们计算了人手指皮肤的瞬态动态响应以及在触觉感受器上应变能密度的分布，重点是表皮对触感的影响。我们使用FE（有限元）模型创建通过实际人的食指测量的几何和材料特性的方法，介绍了一种动态接触分析方法，该方法用于分析有/无表皮脊与手指之间的动态接触。有/没有表面粗糙度的物体。发现表皮隆起增加了触觉受体的敏感性。表皮脊的存在改变了触觉直肠处的分布模式或应变能密度的幅度。还发现，迈斯纳氏球囊对于检测表面粗糙度比较敏感，而默克尔的圆盘对于检测物体的齿痕相对敏感。

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