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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/222

    Title: 進階有限元素接觸分析在生物力學之應用;Advanced finite element contact analyses to Biomechanics Applications
    Authors: 陳耀德;Chen, Yao-Te
    Contributors: 機械工程系研究所
    Keywords: 頭盔設計;熱塑性矯正器;有限元素法;Design of helmet;Orthodontic appliance;FEM
    Date: 2017
    Issue Date: 2019-07-17
    Publisher: 機械工程系研究所
    Abstract: 有限元素接觸分析是在生醫工程用中是技術複雜的領域,因為生物接觸體具有復雜的幾何形狀與經歷大變形或受其他因素的影響。研究針對熱塑性矯正器接觸力傳遞在牙周韌帶(PDL)引起的初始應力分佈、摩托車頭盔接觸力傳遞對於減少頭部受傷的風險評估,進行動靜態數值研究。靜態有限元分析(FEA)模擬,以25歲女性患者牙齒模型,進行檢查熱塑性矯正器在彈性恢復力傳遞過程中PDL應力響應的影響。結果表明不同厚度的熱塑性矯正產生的PDL應力,提供使牙齒移動數值方法。動態有限元分析(FEA)模型為三種通風設計頭盔和三種傳統頭盔在騎士頭部安全和舒適度之間評估平衡。結果表明在所有的頭盔中,半罩頭盔加速度最大。通風槽的頭盔設計,確保頭部保護和在炎熱氣候中的舒適度,提供安全與舒適的解決方案。
    This article the application of computational biomechanics to the simulation of contact mechanics as relevant to the study of thermo-plastic and helmet. A numerical investigation is performed into the in-itial stress dis-tribution induced within the periodontal ligament (PDL) by thermo-plastic appliances with different thicknesses. Based on the plaster model of a 25-year-old female patient. The results presented in this study provide a useful insight into as a result of the compressive and tensile stresses induced by thermo-plastic appliances of different thicknesses. Motorcycle helmets are essential for reducing the risk of head in-juries in the event of an impact. However, during the design of hel-mets, a compromise must be made between user safety and user com-fort. FEA models were constructed for both a prototype helmet design, and three traditional helmet designs. The half-face helmet re-sulted in the greatest headform acceleration. the results suggest that the pro-posed open-face helmet design with ventilation slots provides a prom-ising solution for ensuring both user protection and user com-fort in warm climates.
    Appears in Collections:[機械工程學系] 學位論文

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