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Finite Element Analysis of Shock Absorption of Porous Soles Established by Grasshopper and UG Secondary Development
Mathematical Problems in Engineering ( IF 1.430 ) Pub Date : 2020-11-19 , DOI: 10.1155/2020/2652137
Xiaoying Liu 1 , Yong Yue 1 , Xuyang Wu 1 , Yanhua Hao 1 , Yong Lu 1
Affiliation  

On the basis of computer aided modeling technology, this paper proposes a porous structure modeling method based on Grasshopper visual programming language and Unigraphics NX (UG) secondary development platform. The finite element model of the foot was established, and then models of shoe soles with four basic porous structures of cross, diamond, star, and x were established. Each structure was set with a cylindrical radius of 1, 2, and 3 mm, and a total of 12 porous structure sole models were established. The shock absorption effect of the sole on the foot was evaluated by the deformation of the sole, the peak plantar pressure, and the peak stress of metatarsal bones. It is found that the maximum value of the sole deformation of the diamond porous sole is 4.725 mm, the peak plantar pressure is 105.1 Pa, and the first and second metatarsal peak pressures are 2.230 MPa and 3.407 MPa, which have the best shock absorption effect. It shows that the porous structure plays an important role in the cushioning of the sole. The biomechanical effects of porous soles on feet are studied by computer-aided technology and finite element analysis. This study provides a new research method for the cushioning design of shoe soles and has important reference value for the design of footwear.

中文翻译:

蚱hopper和UG二次开发建立的多孔鞋底减震的有限元分析

在计算机辅助建模技术的基础上,提出了一种基于Grasshopper可视化编程语言和Unigraphics NX(UG)二次开发平台的多孔结构建模方法。建立脚的有限元模型,然后建立具有交叉,菱形,星形和x形的四个基本多孔结构的鞋底模型成立。每个结构的圆柱半径分别设置为1、2和3 mm,并建立了总共12个多孔结构鞋底模型。通过鞋底的变形,足底峰值压力和meta骨的峰值应力来评估鞋底对脚的减震效果。结果表明,金刚石多孔底的最大底变形为4.725mm,峰值足底压力为105.1Pa,第一,第二meta骨峰值压力为2.230MPa和3.407MPa,具有最佳的减震效果。 。这表明多孔结构在鞋底的缓冲中起重要作用。通过计算机辅助技术和有限元分析研究了多孔鞋底对脚的生物力学作用。
更新日期:2020-11-19
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