基于三周期极小曲面的三维打印全接触鞋垫建模方法  

Modeling Method of 3D Printing Full Contact Insole Based on Triply Periodic Minimal Surface

作　　者：江超群[1] 童晶[1] 郭明灯 陆荣杰 陈正鸣[1] JIANG Chao-qun;TONG Jing;GUO Ming-deng;LU Rong-jie;CHEN Zheng-ming(College of the IOT Engineering, Information Department, Hohai University, Changzhou 213022, China)

机构地区：[1]河海大学信息学部物联网工程学院,江苏常州213022

出　　处：《计算机与现代化》2021年第5期13-19,共7页Computer and Modernization

基　　金：国家自然科学基金资助项目(61772172)。

摘　　要：全接触鞋垫可以降低足底峰值压力来改善和预防糖尿病足群体的神经性溃疡症状,传统全接触鞋垫设计方法操作复杂,本文提出一种新颖的基于三周期极小曲面(TPMS)的三维打印全接触鞋垫建模方法。通过数据采集、全接触模型构建、模型多孔化3个步骤构建基于TPMS结构的全接触鞋垫,使用三维打印技术生产。首先采集用户脚部模型和目标鞋垫模型。然后通过拉普拉斯变形算法将预制鞋垫模型的下边缘逼近扫描鞋垫,并调整预制鞋垫模型上表面到接近脚底曲面构造出全接触鞋垫模型。最后使用基于Marching Cubes方法的网格重建方法将全接触鞋垫重建为基于TPMS结构的网格模型。实验验证了本文提出的方法可以设计出具有减轻足底峰值压力能力的全接触鞋垫。The full-contact insole can reduce the peak plantar pressure to improve and prevent neurotic ulcer symptoms in diabetic foot.The traditional full-contact insole design method is complex to operate.In this paper,a novel 3D printing modeling method for full-contact insole is proposed based on triply periodic minimal surface(TPMS).Through three steps of data collection,full-contact model construction and model porousness,a full-contact insole based on TPMS structure is constructed and produced using 3D printing technology.First,the user foot model and the scan insole model are collected.Then the lower boundary of the pre-designed insole model is approximated to the scan insole model by Laplace transform algorithm,and the full-contact insole model is constructed by adjusting the upper surface of the pre-designed insole model to the bottom of foot.Finally,the Marching Cubes mesh reconstruction method is applied to reconstruct the full-contact insole into a TPMS structure based mesh model.The experiment verifies that the method proposed in this paper can design a full-contact insole with the ability to reduce the peak pressure of the sole.

关 键 词：三周期极小曲面 全接触鞋垫 三维打印 三维建模 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]