面向足底压力优化的全接触矫形鞋垫设计  

Full-contact orthopedic insole design for plantar pressure optimization

作　　者：黄昱喆 王旭鹏 陈文会[2] 周中泽 赵嘉鑫 王芸倩 HUANG Yuzhe;WANG Xupeng;CHEN Wenhiu;ZHOU Zhongze;ZHAO Jiaxin;WANG Yunqian(School of Art and Design,Xi’an University of Technology,Xi’an Shaanxi 710048,China;School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an Shaanxi 710048,China)

机构地区：[1]西安理工大学艺术与设计学院,陕西西安710048 [2]西安理工大学机械与精密仪器工程学院,陕西西安710048

出　　处：《图学学报》2024年第4期868-878,共11页Journal of Graphics

基　　金：教育部人文社会科学研究规划/青年基金项目(21XJC760003);陕西省青年杰出人才支持计划配套基金(106-451420001)。

摘　　要：为优化足底压力分布、降低足底峰值压力,提出一种基于三维足部模型的全接触矫形鞋垫参数化设计方法。以足底压力数据为基础,结合三维晶格结构分析,对鞋垫的减压结构进行优化。首先,利用足部三维扫描模型,通过Grasshopper插件平台开发全接触鞋垫模型参数化设计流程,实现全接触鞋垫的个性化设计。其次,在Abaqus环境下,对TPU材质的六种常见三维立方晶格结构进行能量吸收效率的分析,计算不同填充率下“金刚石”晶格结构的有效弹性模量,评估不同晶格结构在吸收足底压力时的性能,为减压结构的选择提供科学依据。然后,利用图像采样算法提取足底压力较大的区域,选择相应的有效弹性模量结构进行填充,完成全接触矫形鞋垫优化设计,并通过仿真分析对比优化前后矫形鞋垫的减压性能。最后,通过静态和动态足底压力测量实验,证明基于足形和三维减压结构设计的个性化矫形鞋垫可以有效优化足底压力分布、卸载足底压力峰值和提高足部稳定性。In order to optimize the plantar pressure distribution and reduce the peak plantar pressure,a parametric design method for full-contact orthopedic insoles based on a three-dimensional foot model was proposed.Based on the plantar pressure data and combined with the 3D lattice structure analysis,the offloading structure of the insole was optimized.First of all,in order to realize the personalized design of the full-contact insole,the foot 3D scanning model was employed to develop the parametric design process of the full-contact insole model through the Grasshopper plug-in platform.Subsequently,the energy absorption efficiency of six common 3D cubic lattice structures made of TPU was analyzed under the Abaqus environment,and the effective elastic modulus of diamond lattice structures was calculated under different filling rates.The performance of different lattice structures in absorbing plantar pressure was evaluated to provide a scientific basis for the selection of pressure-reducing structures.In the next part,the image sampling algorithm was used to extract the areas with higher plantar pressure,and the corresponding effective modulus of elasticity was chosen to fill different parts,completing the optimization design of the full-contact orthopedic insole.Additionally,the pressure reduction performance of the orthopedic insole before and after the optimization was compared through simulation analysis.Finally,static and dynamic plantar pressure measurement experiments demonstrated that personalized orthopedic insoles based on foot shape and three-dimensional pressure-reducing structures can effectively optimize the distribution of plantar pressure,offload the peak value of plantar pressure,and improve foot stability.

关 键 词：足底压力优化 矫形鞋垫 参数化设计 三维晶格结构 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TS943[自动化与计算机技术—计算机科学与技术]