鞋子的舒適度，取決於穿著在腳上時是否有局部異常的疼痛感，承受人所有重量的足底，則是最容易發生足部病變的部位，為了減少足部病痛的產生，增加足底與鞋墊的接觸面積，及降低足底最大壓力並且均佈化是本研究的主要目的。然而，鞋子舒適程度的定義卻不僅止於足底壓力的大小，其中，鞋墊(Sole)與鞋大底(Outsole)材料、厚度、軟硬程度都是必需考量的因子，因此，在本論文中，利用已經建立完成的右踝足3D實體模型，成功建構出鞋墊、大底的簡單幾何形狀，並分別導入線性材料參數至鞋墊、大底、軟骨 (Cartilage)與骨頭，與非線性材料參數至皮膚軟組織 (Soft tissue)及足底筋膜 (Plantar fascia)，透過有限元素分析軟體ANSYS，以人靜止站立在鞋墊上，模擬站立時鞋墊的應力反應值對人足部三區塊：前足(Fore-foot)、中足(Mid-foot)與後足(Rear-foot)的壓力、足底筋膜應力分佈及鞋墊三區塊：蹠骨區(Metatarsal region)、中足區(Mid-foot region)與足跟區(Heel region)應力的分析，並以足底壓力量測儀器Pedar-X系統，進行量測人站立一段時間體重平均分佈在雙腳上的足底壓力，經過比較模擬分析結果與實驗數據，得到初步分析的一致性，有利於進一步的鞋墊厚度最佳化與鞋底應力分析，以供製鞋業者參考。

The comfortability of footwear is determined by the foot pain of sensitivity on local area of the plantar which is to bear weight. This study aims at increasing the contact area between plantar and insole, decreasing the peak plantar pressure and redistributing the plantar pressure. However, quantification of plantar pressure is not complete enough to describe the biomechanical behavior and the comfortability of footwear. It is necessary to consider the material, thickness and hardness of insole and outsole. In this research, a 3D solid model of right angle-foot which had been created previously was used to construct a simple geometry of insole and outsole. Moreover, nonlinear material models, Mooney-Rivlin hyperelasticity model and polynomial form model, were employed for plantar fascia and soft tissue, respectively; while the sole, cartilage and bone were assumed to be linearity. By using finite element analysis software ANSYS 11.0, effects of sole on the plantar stress redistribution and plantar fascia stress response were analyzed during standing for three regions of plantar: fore-foot, mid-foot and rear-foot. Meanwhile, the analysis of stress of insole for three regions: metatarsal region, mid-foot region and heel region were also encountered. The FE model validation was completed by comparing the FE model calculation to the Pedar-X device measurements. A good agreement between experimental and analytical result has been achieved.

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